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FORM 10-K

United States Securities and Exchange Commission                                                                                Commission File No. 1-6314
Washington, DC 20549


(Mark One)

[X]      Annual Report Pursuant to Section 13 or 15(d) of the Securities Act of 1934.

For the fiscal year ended December 31, 2004

[   ]      Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the transition period from __________ to ____________


Perini Corporation
(Exact name of registrant as specified in its charter)

Massachusetts                                                                                                                             04-1717070
(State of Incorporation)                                                                                                            (IRS Employer Identification No.)

73 Mt. Wayte Avenue, Framingham, Massachusetts                                                            01701
(Address of principal executive offices)                                                                                  (Zip Code)

(508) 628-2000
(Registrant's telephone number, including area code)


Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class                                                                        Name of each exchange on which registered

Common Stock, $1.00 par value                                                   The New York Stock Exchange

$2.125 Depositary Convertible Exchangeable                            The American Stock Exchange
   Preferred Shares, each representing 1/10th
   Share of $21.25 Convertible Exchangeable
   Preferred Stock, $1.00 par value

Securities registered pursuant to Section 12(g) of the Act: None


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes X No __

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. X

Indicate by check mark if registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). Yes  X   No     


The aggregate market value of voting Common Stock held by nonaffiliates of the registrant is $125,018,992 as of June 30, 2004, the last business day of the registrant's most recently completed second quarter.

The number of shares of Common Stock, $1.00 par value per share, outstanding at February 23, 2005 was 25,307,928.


Documents Incorporated by Reference

Portions of the definitive proxy statement relating to the registrant's annual meeting of stockholders to be held on May 19, 2005 are incorporated by reference into Part III of this report.


                                                 PERINI CORPORATION

                                               INDEX TO ANNUAL REPORT

                                                    ON FORM 10-K

                                                                                                            PAGE

PART I

Item 1:                 Business                                                                            2 - 21

Item 2:                 Properties                                                                          22

Item 3:                 Legal Proceedings                                                                   22 - 26

Item 4:                 Submission of Matters to a Vote of Security Holders                                 26 - 27

PART II

Item 5:                 Market for the Registrant's Common Equity and Related Stockholder Matters           28

Item 6:                 Selected Financial Data                                                             29 - 30

Item 7:                 Management's Discussion and Analysis of Financial Condition and Results of
                        Operations                                                                          31 - 46

Item 7A:                Quantitative and Qualitative Disclosure About Market Risk                           46

Item 8:                 Financial Statements and Supplementary Data                                         46

Item 9:                 Changes in and Disagreements with Accountants on Accounting and Financial
                        Disclosure                                                                          46

Item 9A:                Controls and Procedures                                                             47 - 48

Item 9B:                Other Information                                                                   48

PART III

Item 10:                Directors and Executive Officers of the Registrant                                  49

Item 11:                Executive Compensation                                                              49

Item 12:                Security Ownership of Certain Beneficial Owners and Management and
                        Related Stockholder Matters                                                         49

Item 13:                Certain Relationships and Related Transactions                                      49

Item 14:                Principal Accountant Fees and Services                                              49

PART IV

Item 15:                Exhibits and Financial Statement Schedules                                          50

Signatures                                                                                                  51

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PART I.

ITEM 1. BUSINESS

Forward-looking Statements

        The statements contained in this Annual Report on Form 10-K that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including without limitation, statements regarding our management’s expectations, hopes, beliefs, intentions or strategies regarding the future. These forward-looking statements are based on our current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, the continuing validity of the underlying assumptions and estimates of total forecasted project revenues, costs and profits and project schedules; the outcomes of pending or future litigation, arbitration or other dispute resolution proceedings; the availability of borrowed funds on terms acceptable to us; the ability to retain certain members of management; the ability to obtain surety bonds to secure our performance under certain construction contracts; possible labor disputes or work stoppages within the construction industry; changes in federal and state appropriations for infrastructure projects; possible changes or developments in worldwide or domestic political, social, economic, business, industry, market and regulatory conditions or circumstances; and actions taken or not taken by third parties, including our customers, suppliers, business partners, and competitors and legislative, regulatory, judicial and other governmental authorities and officials. Also see “Risk Factors” on pages 12 through 21. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

General

        Perini Corporation and its subsidiaries (or “Perini,” “we,” “us,” and “our,” unless the context indicates otherwise) is a leading construction services company, based on revenues, as ranked by Engineering News-Record, or ENR, offering diversified general contracting, construction management and design-build services to private clients and public agencies throughout the world. We have provided construction services since 1894 and have established a strong reputation within our markets by executing large, complex projects on time and within budget while adhering to strict quality control measures. We offer general contracting, preconstruction planning and comprehensive project management services, including the planning and scheduling of the manpower, equipment, materials and subcontractors required for a project. We also offer self-performed construction services including site work, concrete forming and placement and steel erection. During 2004, we performed work on more than 100 construction projects for over 65 federal, state and local government agencies or authorities and private customers. Our headquarters are in Framingham, Massachusetts, and we have seven other principal offices throughout the United States. Our common stock is listed on the New York Stock Exchange under the symbol “PCR”. Our $21.25 Preferred Stock is listed on the American Stock Exchange.

        Our business is conducted through three primary segments: building, civil, and management services. Our building segment, comprised of Perini Building Company and James A. Cummings, Inc., or Cummings, focuses on large, complex projects in the hospitality and gaming, sports and entertainment, educational, transportation and healthcare markets. Our civil segment is involved in public works construction primarily in the northeastern United States, including the repair, replacement and reconstruction of the United States public infrastructure such as highways, bridges and mass transit systems. In January 2005, we expanded our civil segment through the acquisition of Cherry Hill Construction, Inc., or Cherry Hill, an established civil construction company in the mid-Atlantic and southeastern United States. Our management services segment provides diversified construction, design-build and maintenance services to the U.S. military and government agencies as well as power producers, surety companies and multi-national corporations.

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Business Segment Overview

Building Segment

        Our building segment has significant experience providing services to a number of high growth, specialized building markets, including the hospitality and gaming, sports and entertainment, education, transportation and healthcare markets. We believe our success within the building segment results from our proven ability to manage and perform large, complex projects with aggressive fast-track schedules, elaborate designs and advanced systems while providing accurate budgeting and strict quality control. Although price is a key competitive factor, we believe our strong reputation, long-standing customer relationships and significant level of repeat and referral business have enabled us to achieve our leading position.

        We believe the hospitality and gaming market provides significant opportunities for growth. We are a recognized leader in this market, specializing in the construction of high-end destination resorts and casinos and Native American developments. We work with hotel operators, Native American tribal councils, developers and architectural firms to provide diversified construction services to meet the challenges of new construction and renovation of hotel and resort properties. We believe that our reputation for completing projects on time is a significant competitive advantage in this market, as any delay in project completion may result in significant loss of revenues for the customer. In ENR’s 2004 rankings based on revenue, we ranked as the nation’s 16th largest contractor in the general building market, 2nd largest builder in the hotel, motel and convention center market and as one of the top 25 builders in the sports and entertainment markets.

        As a result of our reputation and track record, we have been involved in many marquee projects. These include hospitality and gaming projects such as the Paris Hotel and Casino in Las Vegas, NV; the Gaylord Palms Resort and Convention Center in Orlando, FL; and the Grand Resorts Hotel/Casino Expansion in Atlantic City, NJ. In the sports and entertainment market, we have been involved in projects such as the Bank One Ballpark in Phoenix, AZ and The Palace at Auburn Hills in Auburn Hills, MI. In our other end markets, we have been involved in large, complex projects such as the Airport Parking Garage and Rental Car Facility in Ft. Lauderdale, FL; the Florida International University Health & Life Sciences Building in Miami, FL; and the South Shore Hospital expansion in Weymouth, MA.

        In January 2003, we acquired Cummings to expand our presence in the southeast region of the United States. Cummings specializes in the construction of schools, municipal buildings and commercial developments.

Civil Segment

        Our civil segment specializes in new public works construction and the repair, replacement and reconstruction of infrastructure, principally in the metropolitan New York and Boston markets. Our civil contracting services include construction and rehabilitation of highways, bridges, light rail transit systems, subways, airports and wastewater treatment facilities. Our customers primarily award contracts through one of two methods: the traditional public “competitive bid” method, in which price is the major determining factor, or through a request for proposals where contracts are awarded based on a combination of technical capability and price. Traditionally, our customers require each contractor to pre-qualify for construction business by meeting criteria that include technical capabilities, financial strength and corporate integrity. We believe that our corporate integrity, financial strength and outstanding record of performance on challenging civil works projects enables us to pre-qualify for projects in situations where smaller, less diversified contractors are unable to meet the qualification requirements. We believe this is a competitive advantage that makes us an attractive partner on the largest infrastructure projects and prestigious DBOM (design-build-operate-maintain) contracts, which combine the nation’s top contractors with engineering firms, equipment manufacturers and project development consultants in a competitive bid selection process to execute highly sophisticated public works projects.

        We have been active in civil construction since 1894 and believe we have developed a particular expertise in large, complex civil construction projects. ENR’s 2004 rankings based on revenue place us as the 49th largest builder of general transportation projects in the country and as a top 25 builder in the mass transit and rail market. We have completed or are currently working on some of the most significant civil construction projects in the northeast including a portion of Boston’s “Big Dig” project, the Williamsburg Bridge reconstruction, New Jersey Light Rail Transit, the Triborough Bridge rehabilitation, Jamaica Station and a section of the Long Island Expressway.

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        In January 2005, we acquired Cherry Hill to expand our presence in the mid-Atlantic and southeast regions of the United States. Cherry Hill, which is now our wholly-owed subsidiary, specializes in excavation, foundations, paving and construction of civil infrastructure.

Management Services Segment

        Our management services segment provides diversified construction, design-build and maintenance services to the U.S. military and government agencies, power suppliers, surety companies and multi-national corporations in the United States and overseas. We believe customers choose our services based on our ability to plan and execute rapid response assignments and multi-year contracts through our diversified construction and design-build abilities. In addition, we believe we have demonstrated consistently superior performance on competitively bid or negotiated multi-year, multi-trade, task order and ID/IQ (Indefinite Delivery/Indefinite Quantity) construction programs. We have been chosen by the federal government for significant projects related to defense and reconstruction projects in Iraq and Afghanistan. For example, we are currently working on the reconstruction of electric power facilities in southern Iraq. In addition, we completed two projects to construct buildings and infrastructure at Afghan National Army bases near Kabul and have begun construction of two complete 6,000-person bases in northern and eastern Afghanistan.

        We believe we are well positioned to capture additional projects that involve long-term contracts and provide a recurring source of revenues as government expenditures for defense and homeland security increase in response to the global threat of terrorism. For example, we have recently concluded a multi-year contract with the U.S. Department of State, Office of Overseas Buildings Operations, to perform design-build security upgrades at U.S. embassies and consulates throughout the world including Argentina, Brazil, Czech Republic, Laos, Pakistan, the Philippines and Taiwan. We are currently completing a separate contract to consolidate facilities for increased security at the U.S. Embassy in Islamabad, Pakistan. In addition, our proven abilities with federal government projects have enabled us to win contracts from private defense contractors who are executing projects for the federal government. For example, we have been awarded design and construction contracts by Raytheon Integrated Defense Systems for upgrades to radar facilities at Beale Air Force Base in California, the Cobra Dane Facility on Shemya Island, Alaska, and at a Royal Air Force facility in Fylingdales, England to meet the requirements of a new early warning radar system.

        We also provide diversified management services to power producers, surety companies and multi-national corporations. Under a five-year contract expiring at the end of 2006, we provide planning, management, maintenance and modification services at 10 nuclear power generating stations, including 17 operating units. We are also under agreement with a major North American surety company to provide rapid response, contract completion services. Upon notification from the surety of a contractor bond default, we provide management or general contracting services to fulfill the contractual and financial obligations of the surety.

Markets and Customers

        Information on lines of business and foreign business is included under the following captions of this Annual Report on Form 10-K for the year ended December 31, 2004.

                                                                                                    Annual Report
                                                                                                     on Form 10-K
                                            Caption                                                   Page Number

Selected Consolidated Financial Information                                                             29 - 30
Management's Discussion and Analysis of Financial Condition and Results of Operations                   31 - 46
Note 11 of Notes to Consolidated Financial Statements entitled "Business Segments"                      79 - 81

        While the “Selected Consolidated Financial Information” presents certain business segment information for purposes of consistency of presentation for the five years ended December 31, 2004, additional business segment information required by Statement of Financial Accounting Standards No. 131, “Disclosures About Segments of an Enterprise and Related Information”, for the three years ended December 31, 2004 is included in Note 11 of Notes to Consolidated Financial Statements.

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        Our construction services are targeted toward end markets that are diversified across project types, client characteristics and geographic locations. Revenues by business segment for each of the three years in the period ended December 31, 2004 are set forth below:

                                                  Revenues by Segment
                                                Year Ended December 31,
                                      ---------------------------------------------
                                          2004            2003            2002
                                      -------------   -------------   -------------
                                                     (in thousands)
Building                               $ 1,298,771     $  898,254       $  631,860
Civil                                      138,095        176,877          312,528
Management Services                        405,449        298,972          140,653
                                      -------------   -------------   -------------
     Total                             $ 1,842,315     $1,374,103       $1,085,041
                                      =============   =============   =============

        Revenues by end market for the building segment for each of the three years in the period ended December 31, 2004 are set forth below:

                                          Building Segment Revenues by End Market
                                      -------------------------------------------------
                                           2004              2003            2002
                                      -------------     -------------    -------------
                                                     (in thousands)
Hospitality and Gaming                 $ 1,042,671      $  541,575       $  513,374
Sports and Entertainment                    10,753         126,705           72,729
Education Facilities                       111,296          98,730            1,181
Transportation Facilities                   34,801          46,266           14,096
Healthcare Facilities                       25,206          53,351           11,264
Other                                       74,044          31,627           19,216
                                     -------------     -------------     -------------
     Total                             $ 1,298,771      $  898,254       $  631,860
                                     =============     =============     =============

        Revenues by end market for the civil segment for each of the three years in the period ended December 31, 2004 are set forth below:

                                           Civil Segment Revenues by End Market
                                      -----------------------------------------------
                                         2004             2003              2002
                                      ------------     ------------     -------------
                                                      (in thousands)
Highways                               $   17,394     $     64,322       $    92,486
Bridges                                    39,868           16,519            72,312
Mass Transit                               46,509           84,967           145,160
Wastewater Treatment and Other             34,324           11,069             2,570
                                      ------------     ------------     -------------
     Total                             $  138,095      $   176,877       $   312,528
                                      ============     ============     =============

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        Revenues by end market for the management services segment for each of the three years in the period ended December 31, 2004 are set forth below:

                                          Management Services Segment
                                             Revenues by End Market
                                 -----------------------------------------------
                                     2004             2003             2002
                                 -------------     ------------     ------------
                                                 (in thousands)
U.S. Government Services             $329,095         $218,688         $ 46,749
Power Facilities Maintenance           59,945           51,724           74,948
Other                                  16,409           28,560           18,956
                                 -------------     ------------     ------------
     Total                           $405,449         $298,972         $140,653
                                 =============     ============     ============

        We provide our services to a broad range of private and public customers. The allocation of our revenues by client source for each of the three years in the period ended December 31, 2004 are set forth below:

                        Revenues by Client Source
                        -------------------------

                                              Year Ended December 31,
                                           -------------------------------
                                            2004        2003       2002
                                           --------    -------    --------

Private Owners                               67%         61%        65%
State and Local Governments                  15          23         30
Federal Governmental Agencies                18          16          5
                                           --------    -------    --------
                                            100%        100%       100%
                                           ========    =======    ========

        Private Owners. We derived approximately 67% of our revenues from private customers during 2004. Our private customers include major hospitality and gaming resort owners, Native American sovereign nations, private developers, healthcare and retirement companies and a leading owner and operator of power facilities. We provide services to our private customers primarily through negotiated contract arrangements, as opposed to competitive bids.

        State and Local Governments. We derived approximately15% of our revenues from state and local government customers during 2004. Our state and local government customers include state transportation departments, state and local correctional departments, metropolitan authorities, cities, municipal agencies, school districts and public universities. We provide services to our state and local customers primarily pursuant to contracts awarded through competitive bidding processes. Our civil contracting services are concentrated in the northeast, principally in the metropolitan New York and Boston markets. Our building construction services for state and local government customers, which have included schools and dormitories, correctional and healthcare facilities, parking structures and municipal buildings, are in locations throughout the country. Since our acquisition of Cummings in January 2003, we have been particularly active in providing construction services for local government customers in Florida.

        Federal Governmental Agencies. We derived approximately 18% of our revenues from federal governmental agencies during 2004. These agencies have included the State Department, the U.S. Navy and the U.S. Army Corps of Engineers. We provide services to federal agencies primarily pursuant to contracts for specific or multi-year assignments that involve new construction or infrastructure improvements. A substantial portion of our revenues from federal agencies is derived from projects in overseas locations. Our share of revenues derived from federal customers has increased steadily in recent years. We expect this trend to continue for the foreseeable future as a result of our expanding base of experience and relationships with federal agencies, together with favorable market and expenditure trends for defense, security and reconstruction work.

Backlog

        We include a construction project in our backlog at such time as a contract is awarded or a firm letter of commitment is obtained and funding is in place. As a result, the backlog figures are firm, subject only to the cancellation

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provisions contained in the various contracts. Historically, these provisions have not had a material adverse effect on us.

        As of December 31, 2004, we had a construction backlog of $1.151 billion compared to $1.666 billion at December 31, 2003 and $990 million at December 31, 2002. Backlog is summarized below by business segment as of December 31, 2004 and 2003:

                                          Backlog by Business Segment
                               --------------------------------------------------
                                      December 31,             December 31,
                                         2004                       2003
                               ------------------------   -----------------------
                                            (dollars in thousands)
Building                         $   570,067      50%      $   896,799       54%
Civil                                230,711      20           305,698       18
Management Services                  350,697      30           463,967       28
                               --------------   -------   -------------    ------
     Total                       $ 1,151,475     100%      $ 1,666,464      100%
                               ==============   =======   =============    ======

        We estimate that approximately $200 million, or 17%, of our backlog at December 31, 2004 will not be completed in 2005.

        Backlog by end market for the building segment as of December 31, 2004 and 2003 is set forth below:

                                          Building Segment Backlog by End Market
                                  -------------------------------------------------------
                                        December 31,                  December 31,
                                            2004                          2003
                                  --------------------------    -------------------------
                                                  (dollars in thousands)
Hospitality and Gaming                 $ 406,869       71%           $ 608,161      68%
Sports and Entertainment                   3,260        1                9,235       1
Education Facilities                      99,221       17              116,013      13
Transportation Facilities                  9,806        2               45,529       5
Healthcare Facilities                      4,393        1               26,048       3
Other                                     46,518        8               91,813      10
                                  ---------------    -------    ---------------   -------
     Total                             $ 570,067      100%           $ 896,799     100%
                                  ===============    =======    ===============   =======

        Backlog by end market for the civil segment as of December 31, 2004 and 2003 is set forth below:

                                                  Civil Segment Backlog by End Market
                                      ------------------------------------------------------------
                                             December 31,                    December 31,
                                                 2004                            2003
                                      ----------------------------    ----------------------------
                                                        (dollars in thousands)
Highways                                $  12,243          6%           $  24,736          8%
Bridges                                    76,984         33              102,155         33
Mass Transit                               53,570         23               60,603         20
Wastewater Treatment and Other             87,914         38              118,204         39
                                      ------------    ------------    ------------    ------------
     Total                              $ 230,711        100%           $ 305,698        100%
                                      ============    ============    ============    ============

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        Backlog by end market for the management services segment as of December 31, 2004 and 2003 is set forth below:

                                       Management Services Segment Backlog by End Market
                                 -------------------------------------------------------------
                                         December 31,                    December 31,
                                             2004                            2003
                                 -----------------------------    ----------------------------
                                                    (dollars in thousands)
U.S. Government Services             $231,145         66%            $305,496         66%
Power Facilities Maintenance          113,239         32              150,308         32
Other                                   6,313          2                8,163          2
                                 -------------    ------------    ------------    ------------
     Total                           $350,697        100%            $463,967        100%
                                 =============    ============    ============    ============

Competition

         The construction industry is highly competitive and the markets in which we compete have numerous and often larger companies that provide similar services. In certain end markets of the building segment, such as hospitality and gaming, we are one of the largest providers of construction services in the United States, but within other end markets of the building segment, and within the civil and management services segments, there are competitors with significantly greater capabilities and resources. In our building segment, we compete with a variety of national and regional contractors. In the west, our primary competitors are Marnell-Carrao, Huntcor and McCarthy. In the northeast, our primary competitors are Suffolk, Gilbane and Turner and in the southeast our primary competitors include Centex-Rooney, James B. Pirtle and Whiting-Turner. In our management services segment, we compete principally with national engineering and construction firms such as Fluor, Washington Group International and Kellogg Brown & Root. In our civil segment, we compete principally with large civil construction firms that operate in the northeast, including Slattery/Skanska, Granite Construction/Halmar, Tully and Schiavone. We believe price, experience, reputation, responsiveness, customer relationships, project completion track record and quality of work are key factors in customers awarding contracts across our end markets.

Types of Contracts and The Contract Process

Type of Contracts

         The general contracting and management services we provide consist of planning and scheduling the manpower, equipment, materials and subcontractors required for the timely completion of a project in accordance with the terms, plans and specifications contained in a construction contract. We provide these services by entering into traditional general contracting arrangements, such as fixed price, guaranteed maximum price and cost plus award fee contracts and, to a lesser extent, construction management or design-build contracting arrangements. These contract types and the risks generally inherent therein are discussed below:

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         Historically, a high percentage of our contracts have been of the fixed price and GMP type. A summary of revenues and backlog by type of contract for each of the three years in the period ended December 31, 2004 follows:

                                      Backlog as of
                                      December 31,
                               ----------------------------
                                 2004       2003      2002
                               -------    -------   -------

Fixed Price                      32%        30%       30%
Cost Plus, GMP or CM             68         70        70
                               -------    -------   -------
                                100%       100%      100%
                               =======    =======   =======

                                    Revenues for the
                                 Year Ended December 31,
                               ----------------------------
                                 2004       2003      2002
                               -------    -------   -------

Fixed Price                      20%        18%       35%
Cost Plus, GMP or CM             80         82        65
                               -------    -------   -------
                                100%       100%      100%
                               =======    =======   =======

The Contract Process

        We identify potential projects from a variety of sources, including advertisements by federal, state and local governmental agencies, through the efforts of our business development personnel and through meetings with other participants in the construction industry such as architects and engineers. After determining which projects are available, we make a decision on which projects to pursue based on such factors as project size, duration, availability of personnel, current backlog, competitive advantages and disadvantages, prior experience, contracting agency or owner, source of project funding, geographic location and type of contract.

        After deciding which contracts to pursue, we generally have to complete a prequalification process with the applicable agency or customer. The prequalification process generally limits bidders to those companies with operational experience and financial capability to effectively complete the particular project(s) in accordance with the plans, specifications and construction schedule.

        The estimating process typically involves three phases. Initially, we perform a detailed review of the plans and specifications, summarize the various types of work involved and related estimated quantities, determine the project duration or schedule and highlight the unique and riskier aspects of the project. After the initial review, we decide whether or not to continue to pursue the project. If the answer is positive, we perform the second phase of the estimating process which consists of estimating the cost and availability of labor, material, equipment, subcontractors and the project team required to complete the project on time and in accordance with the plans and specifications. The final phase consists of a detailed review of the estimate by management including, among other things, assumptions regarding cost, approach, means and methods, productivity and risk. After the final review of the cost estimate, management adds an amount for

9


profit to arrive at the total bid amount.

        Public bids to various governmental agencies are generally awarded to the lowest bidder. Requests for proposals or negotiated contracts with public or private customers are generally awarded based on a combination of technical capability and price, taking into consideration factors such as project schedule and prior experience.

        During the construction phase of a project, we monitor our progress by comparing actual costs incurred and quantities completed to date with budgeted amounts and the project schedule and periodically, at a minimum on a quarterly basis, prepare an updated estimate of total forecasted revenue, cost and profit for the project.

        During the normal course of most projects, the customer and sometimes the contractor initiate modifications or changes to the original contract to reflect, among other things, changes in specifications or design, construction method or manner of performance, facilities, equipment, materials, site conditions and period for completion of the work. Generally the scope and price of these modifications are documented in a "change order" to the original contract and reviewed, approved and paid in accordance with the normal change order provisions of the contract.

        Many times the contract requires us to perform extra or change order work as directed by the customer even if the customer has not agreed in advance on the scope or price of the work to be performed. This process may result in disputes over whether the work performed is beyond the scope of the work included in the original project plans and specifications or, if the customer agrees that the work performed qualifies as extra work, the price the customer is willing to pay for the extra work. Even when the customer agrees to pay for the extra work, we may be required to fund the cost of such work for a lengthy period of time until the change order is approved and funded by the customer. Also, these unapproved change orders, contract disputes or claims result in costs being incurred by us that cannot be billed currently and, therefore, are reflected as "Unbilled Work" in our balance sheet. See Note 1(d) of Notes to Consolidated Financial Statements. In addition, any delay caused by the extra work may adversely impact the timely scheduling of other project work and our ability to meet specified contract milestone dates.

        The process for resolving claims vary from one contract to another but, in general, we attempt to resolve claims at the project supervisory level through the normal change order process or with higher levels of management within our organization and the customer's organization. Depending upon the terms of the contract, claim resolution may employ a variety of other resolution methods, including mediation, binding or non-binding arbitration or litigation. Regardless of the process, when a potential claim arises on a project, we typically have the contractual obligation to perform the work and must incur the related costs. We do not recoup the costs until the claim is resolved. It is not uncommon for the claim resolution process to take months or years to resolve, especially if it involves litigation.

        Our contracts generally involve work durations in excess of one year. Revenue from our contracts in process is generally recorded under the percentage of completion contract accounting method. For a more detailed discussion of our policy in these areas, see Note 1(d) of Notes to Consolidated Financial Statements, entitled "Method of Accounting for Contracts".

Construction Costs

        While our business may experience some adverse consequences if shortages develop or if prices for materials, labor or equipment increase excessively, provisions in certain types of contracts often shift all or a major portion of any adverse impact to the customer. On fixed price contracts, we attempt to insulate ourselves from the unfavorable effects of inflation by incorporating escalating wage and price assumptions, where appropriate, into our construction bids and by obtaining firm fixed price quotes from major subcontractors and material suppliers at the time of the bid period. Construction and other materials used in our construction activities are generally available locally from multiple sources and have been in adequate supply during recent years. Construction work in selected overseas areas primarily employs expatriate and local labor which can usually be obtained as required.

Environmental Matters

        Our properties and operations are subject to federal, state and municipal laws and regulations relating to the protection of the environment, including requirements for water discharges, air emissions, the use, management and

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disposal of solid or hazardous materials or wastes and the cleanup of contamination. For example, we must apply water or chemicals to reduce dust on road construction projects and to contain contaminants in storm run-off water at construction sites. In certain circumstances, we may also be required to hire subcontractors to dispose of hazardous materials encountered on a project in accordance with a plan approved in advance by the owner. We believe that we are in substantial compliance with all applicable laws and regulations. However, future requirements or amendments to current laws or regulations imposing more stringent requirements could require us to incur additional costs to maintain or achieve compliance.

        In addition, some environmental laws, such as the U.S. federal "Superfund" law and similar state statutes, can impose liability for the entire cost of cleanup of contaminated sites upon any of the current or former owners or operators or upon parties who sent wastes to these sites, regardless of who owned the site at the time of the release or the lawfulness of the original disposal activity. Contaminants have been detected at some of the sites that we own, or where we worked as a contractor in the past, and we have incurred costs for investigation or remediation of hazardous substances. We also believe that our liability for these sites will not be material, either individually or in the aggregate, and have pollution legal liability insurance available for such matters. We believe that we have minimal exposure to environmental liability as a result of the activities of Perini Environmental Services, Inc., or Perini Environmental, a wholly owned subsidiary of Perini that was phased out during 1997. Perini Environmental provided hazardous waste engineering and construction services to both private clients and public agencies nationwide. Perini Environmental was responsible for compliance with applicable laws in connection with its activities; however, Perini and Perini Environmental generally carried insurance or received indemnification from customers to cover the risks associated with the remediation business.

        We own real estate in four states and as an owner, are subject to laws governing environmental responsibility and liability based on ownership. We are not aware of any significant environmental liability associated with our ownership of real estate.

Real Estate Operations

        Effective June 30, 1999, management adopted a plan to withdraw completely from the real estate development business and to wind down the operations of Perini Land and Development Company, or PL&D, our wholly owned real estate development subsidiary. Accordingly, approximately 98% of the property has been liquidated since June 30, 1999. Since December 31, 2002, the only land remaining to be sold consists of certain fully developed parcels in Raynham, Massachusetts. This property is primarily included in "Other Assets" on the Consolidated Balance Sheets. (See Note 13 of Notes to Consolidated Financial Statements.)

Insurance and Bonding

        All of our properties and equipment, both directly owned or owned through joint ventures with others, are covered by insurance and management believes that such insurance is adequate. In addition, we maintain general liability, excess liability and workers' compensation insurance in amounts that we believe are consistent with our risk of loss and industry practice. Due to tight conditions in the insurance market, commencing in the calendar year 2002 and continuing through 2004, we purchased workers' compensation and general liability policies at substantially higher premiums with a self-insured deductible limit of $250,000 per occurrence, with appropriate aggregate caps on losses retained.

        As a normal part of the construction business, we are often required to provide various types of surety bonds as an additional level of security of our performance. We have surety arrangements with several sureties, one of which we have dealt with for over 75 years, and another of which owns approximately 10.5% of our outstanding common stock. (See Note 12 of Notes to Consolidated Financial Statements.)

Employees

        The total number of personnel employed by us is subject to seasonal fluctuations, the volume of construction in progress and the relative amount of work performed by subcontractors. During 2004, our average number of employees was approximately 2,400 with a maximum of approximately 3,600 and a minimum of approximately 1,500.

        We operate primarily as a union contractor. As such, we are signatory to numerous local and regional collective

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bargaining agreements, both directly and through trade associations, throughout the country. These agreements cover all necessary union crafts and are subject to various renewal dates. Estimated amounts for wage escalation related to the expiration of union contracts are included in our bids on various projects and, as a result, the expiration of any union contract in the next fiscal year is not expected to have any material impact on us. As of December 31, 2004, approximately 680 of our total of 1,520 employees were union employees. During the past several years, we have not experienced any work stoppages caused by our union employees.

Available Information

        Our website address is www.perini.com. The information contained on our website is not included as a part of, or incorporated by reference into, this Annual Report on Form 10-K. We make available, free of charge on our Internet website our annual reports on Form 10-K, our quarterly reports on Form 10-Q, our current reports on Form 8-K and amendments to such reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the "Exchange Act") as soon as reasonably practicable after we have electronically filed such materials with, or furnished it to, the United States Securities and Exchange Commission. Also available on our website are our Code of Business Conduct and Ethics, Corporate Governance Guidelines, the charters of the Committees of our Board of Directors and reports under Section 16 of the Exchange Act of transactions in our stock by our directors and executive officers.

RISK FACTORS

        We are subject to a number of risks, including those summarized below. Such risks could have a material adverse effect on our financial condition, results of operations and cash flows. See our disclosure under "Forward-looking Statements" on page 2.

Risks Relating to Our Business:

We are subject to significant legal proceedings, which, if determined adversely to us, could harm our reputation, preclude us from bidding on future projects and/or have a material adverse effect on us.

        We are involved in various lawsuits, including the legal proceedings described under Item 3 -- "Legal Proceedings." While some of these proceedings involve claims against us for significant amounts, we do not believe that these or any other pending litigation will ultimately result in a final judgment against us that would materially adversely affect us. Litigation is, however, inherently uncertain and it is not possible to predict what the final outcome will be of any legal proceeding. A final judgment against us would require us to record the related liability and fund the payment of the judgment and, if such adverse judgment is significant, it could have a material adverse effect on us.

        In addition, legal proceedings resulting in judgments or findings against us may harm our reputation and prospects for future contract awards. For example, we are defendants in a civil action brought by the San Francisco City Attorney on behalf of the City and County of San Francisco and the citizens of California, in which it is alleged, among other things, that we violated various bidding practices and minority contracting regulations and committed acts of fraud. If a final judgment is determined adversely to us, it may harm our reputation among other municipalities, which could preclude us from being qualified to bid on future municipal projects.

Our contracts require us to perform extra or change order work, which can result in disputes and adversely effect our working capital, profits and cash flows.

        Our contracts generally require us to perform extra or change order work as directed by the customer even if the customer has not agreed in advance on the scope or price of the work to be performed. This process may result in disputes over whether the work performed is beyond the scope of the work included in the original project plans and specifications or, if the customer agrees that the work performed qualifies as extra work, the price the customer is willing to pay for the extra work. Even when the customer agrees to pay for the extra work, we may be required to fund the cost of such work for a lengthy period of time until the change order is approved and funded by the customer.

        Also, these unapproved change orders, contract disputes or claims result in costs being incurred by us that cannot be billed currently and therefore, are reflected as "unbilled work" in our balance sheet. See Note 1(d) of Notes to

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Consolidated Financial Statements. To the extent actual recoveries with respect to unapproved change orders, contract disputes or claims are lower than our estimates, the amount of any shortfall will reduce our revenues and the amount of unbilled work recorded on our balance sheet, and could have a material adverse effect on our working capital, results of operations and cash flows. In addition, any delay caused by the extra work may adversely impact the timely scheduling of other project work and our ability to meet specified contract milestone dates. For example, we are currently, along with our joint venture partners, pursuing a series of claims for additional contract time and compensation against the Massachusetts Highway Department for work performed by the joint venture on a portion of the Central Artery/Tunnel project in Boston, Massachusetts. During construction, the Massachusetts Highway Department ordered the joint venture to perform changes to the work and issued related direct cost changes with an estimated value, excluding time delay and inefficiency costs, in excess of $100 million. In addition, we encountered a number of unforeseen conditions during construction that greatly increased our cost of performance. See Item 3.-- "Legal Proceedings."

Economic, political and other risks associated with our international operations involve risks not faced by our domestic competitors, which could adversely affect our revenue and earnings.

        Approximately 18% of our revenue for the year ended December 31, 2004 was derived from our work on projects located outside of the United States. We expect non-U.S. projects to continue to contribute to our revenue and earnings for the foreseeable future. Our international operations expose us to risks inherent in doing business outside the United States, including:

        Any of these factors could harm our international operations and, consequently, our business and consolidated operating results. Specifically, failure to successfully manage international growth could result in higher operating costs than anticipated or could delay or preclude altogether our ability to generate revenues in key international markets.

A decrease in U.S. government funding or change in government plans, particularly with respect to rebuilding Iraq and Afghanistan, as well as the risks associated with undertaking projects in these countries, could adversely affect the continuation of existing projects or the number of projects available to us in the future.

        We recently performed design-build security upgrades at United States embassies and consulates throughout the world, and we are currently engaged in significant building and infrastructure reconstruction activities in Iraq and Afghanistan. The United States federal government has approved various spending bills for the reconstruction and defense of Iraq and has allocated significant funds to the defense of United States interests around the world from the threat of terrorism. A decrease in government funding of these projects or a decision by the federal government to reduce or eliminate the use of outside contractors to perform this work would decrease the number of projects available to us and limit our ability to obtain new contracts in this area. For example, in January 2005, we received a partial stop work order relating to several partially funded task orders for work in Iraq under a contract with the U.S. Department of State while the applicable agency evaluates the feasibility of shifting a portion of the construction funds to Iraqi government agencies in order to accelerate that country's economic recovery.

        In addition, our projects in Iraq, Afghanistan and other areas of political and economic instability carry with them specific security and operational risks. Intentional or unintentional acts in those countries could result in damage to our

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construction sites or harm to our employees and could result in our decision to withdraw our operations from the area. Also, as a result of these acts, the federal government could decide to cancel or suspend our operations in these areas.

Increased regulation of the hospitality and gaming industry could reduce the number of future hospitality and gaming projects available, which, in turn, could adversely impact our future earnings.

        The hospitality and gaming industry is regulated extensively by federal and state regulatory bodies, including state gaming commissions, the National Indian Gaming Commission and state and federal taxing and law enforcement agencies. From time to time, legislation is proposed in the legislatures of some of these jurisdictions that, if enacted, could adversely affect the tax, regulatory, operational or other aspects of the hospitality and gaming industry. Legislation of this type may be enacted in the future. The federal government has also previously considered a federal tax on casino revenues and may consider such a tax in the future. In addition, companies that operate in the hospitality and gaming industry are currently subject to significant state and local taxes and fees in addition to normal federal and state corporate income taxes, and such taxes and fees are subject to increase at any time. For example, a new tax law enacted in Nevada in July, 2003 increased the taxes applicable to Nevada gaming operations. Similar legislation or new hospitality and gaming regulations could deter future hospitality and gaming construction projects in jurisdictions in which we derive significant revenue. As a result, the enactment of such legislation or regulations could adversely impact our future earnings.

A decrease in government funding of infrastructure projects could reduce revenues within our civil construction business segment.

        Our civil construction markets are dependent on the amount of infrastructure work funded by various governmental agencies which, in turn, depends on the condition of the existing infrastructure, the need for new or expanded infrastructure and federal, state or local government spending levels. A decrease in government funding of infrastructure projects could decrease the number of civil construction projects available and limit our ability to obtain new contracts, which could reduce revenues within our civil construction segment.

If we are unable to accurately estimate the overall risks, revenues or costs on a contract, we may achieve a lower than anticipated profit or incur a loss on the contract.

        We generally enter into four principal types of contracts with our clients: fixed price contracts, cost plus award fee contracts, guaranteed maximum price contracts, and, to a lesser extent, construction management or design-build contracts. A significant portion of our revenues and backlog are derived from fixed price contracts. For example, approximately 20% of our revenues for the year ended December 31, 2004 were derived from fixed price contracts. Fixed price contracts require us to perform the contract for a fixed price irrespective of our actual costs. As a result, we realize a profit on these contracts only if we successfully control our costs and avoid cost overruns. Cost plus award fee contracts provide for reimbursement of the costs required to complete a project, but generally have a lower base fee and an incentive fee based on cost and/or schedule performance. If our costs exceed the revenues available under such a contract or are not allowable under the provisions of the contract, we may not receive reimbursement for these costs. Guaranteed maximum price contracts provide for a cost plus fee arrangement up to a maximum agreed-upon price. These contracts also place the risk on us for cost overruns that exceed the guaranteed maximum price. Construction management and design-build contracts are those under which we agree to manage a project for the client for an agreed upon fee, which may be fixed or may vary based upon negotiated factors. Profitability on these types of contracts is driven by changes in the scope of work or design issues, which could cause cost overruns beyond our control and limit profits on these contracts.

        Cost overruns, whether due to inefficiency, faulty estimates or other factors, result in lower profit or a loss on a project. A significant number of our contracts are based in part on cost estimates that are subject to a number of assumptions. If our estimates of the overall risks, revenues or costs prove inaccurate or circumstances change, then we may incur a lower profit or a loss on the contract.

The percentage-of-completion method of accounting for contract revenue may result in material adjustments, which could result in a charge against our earnings.

         We recognize contract revenue using the percentage-of-completion method. Under this method, estimated

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contract revenue is recognized by applying the percentage of completion of the project for the period to the total estimated revenue for the contract. Estimated contract losses are recognized in full when determined. Total contract revenue and cost estimates are reviewed and revised at a minimum on a quarterly basis as the work progresses and as change orders are approved. Adjustments based upon the percentage of completion are reflected in contract revenue in the period when these estimates are revised. To the extent that these adjustments result in an increase, a reduction or an elimination of previously reported contract profit, we recognize a credit or a charge against current earnings, which could be material.

We are subject to a number of risks as a government contractor, which could either harm our reputation, result in fines or penalties against us and/or adversely impact our financial condition.

         We are a major provider of services to government agencies and therefore are exposed to risks associated with government contracting. For example, we must comply with and are affected by laws and regulations relating to the formation, administration and performance of government contracts, such as the Federal Acquisition Regulation, the Cost Accounting Standards and Department of Defense security regulations. A violation of these laws or regulations could require us to pay fines and penalties, result in the termination of existing contracts or result in our being suspended from future government contracts. If a government agency determines that we or one of our subcontractors engaged in improper conduct, we may be subject to civil and criminal penalties and administrative sanctions, including termination of contracts, forfeiture of profits, suspension of payments, fines and suspension or prohibition from doing business with the government, any of which could impact our future earnings or harm our reputation.

        Government agencies generally can terminate or modify their contract with us at their convenience and some government contracts must be renewed annually. If a government agency terminates or fails to renew a contract, our backlog may be reduced. If a government agency terminates a contract due to our unsatisfactory performance, it could result in liability to us and harm our ability to compete for future contracts.

        We have been, are and will be in the future, the subject of audits and cost reviews by contracting agencies, such as the United States Defense Contract Audit Agency, or the DCAA. These agencies review a contractor's performance and may disallow costs if the agency determines that we accounted for such costs in a manner inconsistent with Cost Accounting Standards or other regulatory and contractual requirements. Therefore, a negative audit could result in a substantial adverse adjustment to our revenues and costs, harm our reputation and result in civil and criminal penalties.

Our participation in construction joint ventures exposes us to liability and/or reputational harm for failures of our partners.

        We sometimes enter into joint venture arrangements with outside partners on a joint and several basis so that we can jointly bid on and execute a particular project and reduce our financial or operational risk with respect to such projects. Success on these joint projects depends in large part on whether our joint venture partners satisfy their contractual obligations. If a joint venture partner fails to perform or is financially unable to bear its portion of required capital contributions, we could be required to make additional investments and provide additional services in order to make up for our partner's shortfall. Further, if we are unable to adequately address our partner's performance issues, the client may terminate the project, which could result in legal liability to us, harm our reputation and reduce profit on a project.

Our pension plan is underfunded and we may be required to make significant future contributions to the plan.

        Our defined benefit pension plan is a non-contributory pension plan covering substantially all of our employees. As of December 31, 2004, our pension plan was underfunded by approximately $32.0 million. We are required to make cash contributions to our pension plan to the extent necessary to comply with minimum funding requirements imposed by employee benefit and tax laws. The amount of any such required contributions is determined based on an annual actuarial valuation of the plan as performed by the plan's actuaries. During 2004, we voluntarily contributed $4.0 million in cash to our defined benefit pension plan. The amount of future contributions will depend upon asset returns, then-current discount rates and a number of other factors, and, as a result, the amount we may elect or be required to contribute to our pension plan in the future may increase significantly. See "Management's Discussion and Analysis of Financial Condition and Results of Operations--Critical Accounting Policies--Defined Benefit Retirement Plan."

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The construction services industry is highly schedule driven, and our failure to meet schedule requirements of our contracts could adversely affect our reputation and/or expose us to financial liability.

        Many of our contracts are subject to specific completion schedule requirements with liquidated damages charged to us in the event the construction schedules are not achieved. Failure to meet any such schedule requirements could cause us to suffer damage to our reputation within our industry and client base, as well as pay significant liquidated damages.

Procurement of new project awards is very competitive and our failure to compete effectively could reduce our market share and profits.

        New project awards are often determined through either a competitive bid basis or a negotiated basis. Bids or negotiated contracts with public or private owners are generally awarded based upon price, but many times other factors, such as shorter project schedules or prior experience with the owner, result in the award of the contract. Within our industry, we compete with many national, regional and local construction firms. Some of these competitors have achieved greater market penetration than we have in the markets in which we compete, and some have greater financial and other resources than we do. As a result, we may need to accept lower contract margins or more fixed price or unit price contracts in order for us to compete against competitors that have the ability to accept awards at lower prices or have a pre-existing relationship with the owner. If we are unable to compete successfully in such markets, our relative market share and profits could be reduced.

Economic downturns could reduce the level of consumer spending within the hospitality and gaming industry which could adversely affect demand for our services.

        Consumer spending in the hospitality and gaming industry is discretionary and may decline during economic downturns, when consumers have less disposable income. Even an uncertain economic outlook may adversely affect consumer spending in hospitality and gaming operations, as consumers may spend less in anticipation of a potential economic downturn. Decreased spending in the hospitality and gaming market could deter new projects within the industry and the expansion or renovation of existing hospitality and gaming facilities, which could impact our revenues and earnings.

An inability to obtain bonding could limit the number of projects we are able to pursue.

        As is customary in the construction business, we often are required to provide surety bonds to secure our performance under construction contracts. Our ability to obtain surety bonds primarily depends upon our capitalization, working capital, past performance, management expertise and certain external factors, including the overall capacity of the surety market. Surety companies consider such factors in relationship to the amount of our backlog and their underwriting standards, which may change from time to time. Since 2001, the surety industry has undergone significant changes with several companies withdrawing completely from the industry or significantly reducing their bonding commitment. In addition, certain re-insurers of surety risk have limited their participation in this market. Therefore, we could be unable to obtain surety bonds, when required, which could adversely affect our future results of operations and revenues.

Conflicts of interest may arise with respect to our Chairman and Chief Executive Officer.

        Ronald N. Tutor, our chief executive officer and chairman of our Board of Directors, is the sole shareholder and chief executive officer of Tutor-Saliba Corporation, or Tutor-Saliba, a California corporation that beneficially owns approximately 21.7% of our common stock. Mr. Tutor also devotes a substantial amount of time to the business activities of Tutor-Saliba. Tutor-Saliba is engaged in the construction industry, and we have participated in joint ventures with Tutor-Saliba and expect to continue to do so. Although our joint ventures with Tutor-Saliba are discussed with our Audit Committee, transactions we enter into with Tutor-Saliba could be influenced by Mr. Tutor. As in any joint venture, we could have disagreements with Tutor-Saliba over the operation of the joint ventures or the joint ventures could be involved in disputes with third parties, such as the litigation described under Item 3. - "Legal Proceedings," where we may or may not have an identity of interest with Tutor-Saliba. When such situations arise, we may feel constrained in aggressively pursuing all options available to us because of Mr. Tutor's importance to us as our Chief Executive Officer and Chairman and a significant shareholder. If we face such a situation and elect to pursue options against Tutor-Saliba, it is possible that Mr. Tutor or we could terminate his management relationship with us, which could harm our reputation

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and impact our ability to procure future projects.

We could incur significant costs as a result of liability under environmental laws.

        Our operations are subject to environmental laws and regulations governing among other things, the discharge of pollutants to air and water, the handling, storage and disposal of solid or hazardous materials or wastes and the remediation of contamination, sometimes associated with leaks or releases of hazardous substances. For example, we own, lease, or have used, in our construction, real estate and environmental remediation operations property upon which solid or hazardous wastes may have been disposed of or released. Any release of such materials or wastes by us or by third parties who operated on these properties may result in liability for investigation or remediation costs. In addition, violations of these environmental laws and regulations could subject us and our management to fines, civil and criminal penalties, cleanup costs and third party property damage or personal injury claims.

        Various federal, state and local environmental laws and regulations may impose liability for the entire cost of investigation and clean-up of hazardous or toxic substances. These laws may impose liability without regard to ownership at the time of the contamination or whether or not we caused the presence of contaminants.

If we are unable to attract and retain key personnel, our reputation may be harmed and our future earnings may be negatively impacted.

        Our business substantially depends on the continued service of key members of our management, particularly Ronald N. Tutor, Robert Band, Craig W. Shaw, Zohrab B. Marashlian and Michael E. Ciskey, who, collectively, have an average of 30 years in the construction industry and 24 years with us. The loss of the services of any of our key senior management could have a material adverse effect on us. Our future success will also depend on our ability to attract and retain highly skilled personnel, such as engineering, project management and senior management professionals. Competition for these employees is intense, and we could experience difficulty from time to time in hiring and retaining the personnel necessary to support our business. If we do not succeed in retaining our current employees and attracting new high quality employees, our reputation may be harmed and our future earnings may be negatively impacted.

Work stoppages and other labor problems could adversely affect portions of our business, financial position, results of operations and cash flows.

        We are a signatory to numerous local and regional collective bargaining agreements, both directly and through trade associations. Future agreements reached in collective bargaining could increase our operating expenses and reduce our profits as a result of increased wages and benefits. If the industry were unable to negotiate with any of the unions, it could result in strikes, work stoppages or increased operating costs as a result of higher than anticipated wages or benefits. If the unionized workers engage in a strike or other work stoppage, or other employees become unionized, we could experience a disruption of our operations and higher ongoing labor costs, which could adversely affect portions of our business, financial position, results of operations and cash flows.

We are subject to restrictive covenants under our credit facility that could limit our flexibility in managing the business.

        Our credit facility imposes operating and financial restrictions on us. These restrictions include, among other things, limitations on our ability to:

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        In addition, our credit facility prohibits us from incurring debt, other than debt incurred for financing our corporate headquarters, insurance premiums and construction equipment, from other sources without the consent of our lenders. The amount available to us under our credit facility at December 31, 2004 was $47.2 million.

        Our credit facility contains financial covenants that require us to maintain minimum tangible net worth, fixed charge coverage and operating profit levels as well as a minimum working capital ratio. Our ability to borrow funds for any purpose will depend on our satisfying these tests.

        If we are unable to meet the terms of the financial covenants or fail to comply with any of the other restrictions contained in our credit facility, an event of default could occur. An event of default, if not waived by our lenders, could result in the acceleration of any outstanding indebtedness, causing such debt to become immediately due and payable. If such an acceleration occurs, we may not be able to repay such indebtedness on a timely basis. As our credit facility is secured by substantially all of our assets, acceleration of this debt could result in foreclosure of those assets. In the event of a foreclosure, we would be unable to conduct our business and may be forced to discontinue ongoing operations.

We may have difficulty raising needed capital in the future, which could limit our available working capital and our ability to make acquisitions or future investments.

        We may require additional financing in order to make future investments, make acquisitions or provide needed additional working capital. Our ability to arrange such financing in the future will depend in part upon prevailing capital market conditions, as well as conditions in our business and our operating results; such factors may impact our efforts to arrange additional financing on terms satisfactory to us. We have pledged substantially all of our assets as collateral in connection with our credit facility. As a result, we may have difficulty obtaining additional financing in the future if such financing requires us to pledge our assets as collateral. If additional financing is obtained by the issuance of additional shares of common stock, control of Perini may change and stockholders may suffer dilution. If adequate funds are not available, or are not available on acceptable terms, we may not be able to make future investments, take advantage of acquisition or other opportunities, or otherwise respond to competitive challenges.

Timing of the award and performance of a new contract would have an adverse effect on our operating results.

        At any point in time, a substantial portion of our revenues is directly or indirectly derived from a limited number of large construction projects. It is generally very difficult to predict whether and when we will receive such awards as these contracts frequently involve a lengthy and complex bidding and selection process which is affected by a number of factors, such as market conditions, financing arrangements and governmental approvals. Because a significant portion of our revenue is generated from large projects, our results of operations and cash flows can fluctuate from quarter to quarter depending on the timing of our new contract awards.

        In addition, timing of the revenues, earnings and cash flows from our projects can be delayed by a number of factors, including weather conditions, delays in receiving material and equipment from vendors and changes in the scope of work to be performed. Such delays, if they occur, could have an adverse effect on our operating results for a particular period.

We may not be able to fully realize the revenue value reported in our backlog.

        As of December 31, 2004, our backlog was approximately $1.15 billion. We include a construction project in our backlog at such time as a contract is awarded or a firm letter of commitment is obtained and funding is in place. The revenue projected in our backlog may not be realized or, if realized, may not result in profits. For example, if a project reflected in our backlog is terminated, suspended or reduced in scope, it would result in a reduction to our backlog which would reduce, potentially to a material extent, the revenue and profit we actually receive from contracts in backlog. If a client cancels a project, we may be reimbursed for certain costs but typically have no contractual right to the total revenues reflected in our backlog. Significant cancellations or delays of projects in our backlog could have a material adverse effect on our cash flows and profits.

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We have not paid dividends on our $21.25 Preferred Stock in several years and are currently in litigation with certain of our preferred stockholders.

        The outstanding shares of $21.25 Preferred Stock are represented by Depositary Shares, each of which represents a one-tenth fractional interest in the respective share of $21.25 Preferred Stock (including dividend, voting, redemption and liquidation rights and preferences). Under the terms of our $21.25 Preferred Stock, the holders of our $21.25 Preferred Stock are entitled to receive an annual cash dividend of $21.25 per share (or $2.125 per Depositary Share) when and as declared by our Board of Directors out of funds legally available for such purposes. We have not paid dividends on our $21.25 Preferred Stock (and therefore the Depositary Shares) since 1995, though they have been fully accrued due to the "cumulative" feature of the $21.25 Preferred Stock. The holders of our $21.25 Preferred Stock have the right to elect two directors to our board in the event that dividends are in arrears for at least six quarters, and the holders of our Depositary Shares have done so at each of our last seven annual meetings of stockholders.

        We are currently involved in a class action lawsuit brought by holders of our Depositary Shares. In November 2004, the parties reached an agreement to settle the class action lawsuit. Under the terms of the settlement, we would purchase all of the Depositary Shares submitted in the settlement for consideration of $19.00 per share in cash and one share of our common stock. As of December 31, 2004, there were 559,273 Depositary Shares outstanding. In the event that fewer than 200,000 Depositary Shares are submitted in to the settlement, we may terminate the settlement agreement and the parties will revert to their previous positions in the litigation. Although the named plaintiffs have agreed to support the proposed settlement, it remains subject to approval by the Court.

        In the event that less than all of the outstanding Depositary Shares are submitted in the settlement, dividends will continue to accrue on such Depositary Shares and the holders of such Depositary Shares will continue to have the right to elect two directors to our board. If less than 200,000 Depositary Shares are submitted and we terminate the settlement or if the Court rejects the proposed terms of the settlement, the class action lawsuit would proceed and, if such litigation results in a significant adverse judgment against us, it could have a material adverse effect on our cash flows and profits. See "Management's Discussion and Analysis of Financial Condition and Results of Operations--Dividends" and "Item 3. --Legal Proceedings--$21.25 Preferred Shareholders Class Action Lawsuit".

Our acquisition strategy involves a number of risks, the realization of which could adversely impact our future revenues and the revenues of the businesses that we acquire.

        As a part of our growth strategy, we plan to pursue selective strategic acquisitions of businesses. This strategy involves risks, including diversion of management's attention, potential loss of key employees of acquired businesses and difficulties in integrating operations and systems. We cannot be certain that we will be able to locate suitable acquisitions or consummate any such transactions on terms and conditions acceptable to us or that such transactions will be successful. An inability to successfully integrate acquired businesses into our operations could result in significant losses for us.

Risks Relating to Our Common Stock:

Future sales of our common stock may depress the market price of our common stock.

        As of December 31, 2004, the number of shares of our outstanding common stock freely tradeable on the New York Stock Exchange and not owned by our officers, directors, or affiliates was approximately 13.6 million. Pursuant to the registration rights agreement between us and certain of our stockholders, we have registered the resale of approximately 11.4 million shares of our common stock on a Form S-1 shelf registration statement, of which approximately 10.3 million shares remain available for resale. Registration of the resale of these shares of common stock permits their sale into the public market immediately. We cannot predict when the selling stockholders may sell their shares or in what volumes. However, the market price of our common stock could decline significantly if the selling stockholders sell a large number of shares into the public market or if the market believes that these sales may occur.

        We may also issue our common stock from time to time as consideration for future acquisitions and investments. In the event any such acquisition or investment is significant, the number of shares of our common stock that we may issue could in turn be significant. In addition, we may also grant registration rights covering those shares in connection with

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any such acquisitions and investments.

Limited trading volume of our common stock may contribute to its price volatility.

        Through December 31, 2004, the average daily trading volume during 2004 for our common stock was approximately 149,000 shares. Even if we achieve a wider dissemination by means of the resale of the shares under the shelf registration statement or otherwise, we are uncertain as to whether a more active trading market in our common stock will develop. As a result, relatively small trades may have a significant impact on the price of our common stock.

Our stock price has been and may continue to be volatile and may result in substantial losses for investors.

        The market price of our common stock has been, and is likely to continue to be, volatile. Since January 1, 2004, the market price for our common stock has been as high as $19.99 per share and as low as $8.80 per share. Additionally, the stock market in general has been highly volatile since 2000. This volatility in stock price often has been unrelated to our operating performance.

        In addition, the trading price of our common stock could be subject to wide fluctuations in response to:

        Fluctuations in our stock price as a result of any of the foregoing factors may result in substantial losses for investors.

Fluctuations in our quarterly revenues and operating results may lead to reduced prices for our stock.

        Because our operating results are primarily generated from a limited number of significant active construction projects, operating results in any given fiscal quarter can vary depending on the timing of progress achieved and changes in the estimated profitability of the projects being reported. Progress on projects in certain areas may also be delayed by weather conditions. Such delays, if they occur, may result in inconsistent quarterly operating results due to more or less progress than anticipated being achieved on certain projects, which may in turn lead to reduced prices for our stock.

Ownership of our common stock is concentrated among a few stockholders who could act in a way that favors their interests to the detriment of our interests and those of other stockholders.

        As of December 31, 2004, the percentage of shares of our common stock owned by our executive officers, directors and 5% stockholders is approximately 46%. These stockholders have the ability to significantly influence the outcome of the election of most of our directors, and the approval of any action requiring majority approval of our common stockholders, including certain amendments to our charter. In addition, without the consent of these stockholders, we may not be able to enter into transactions that could be beneficial to us or our other stockholders.

Provisions of Massachusetts law and of our charter and bylaws may make a takeover of us more difficult, which could impede the ability of our stockholders to benefit from a change in control or to change our management and Board of Directors.

        Provisions in our restated articles of organization and bylaws and in the Massachusetts corporate law may make it difficult and expensive for a third party to pursue a tender offer, change in control or takeover attempt which is opposed

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by our management and Board of Directors. Public stockholders who might desire to participate in such a transaction may not have an opportunity to do so. Our bylaws provide for a staggered Board of Directors which makes it difficult for stockholders to change the composition of the Board of Directors in any one year. Our Board of Directors has the authority to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to effect a change in control or takeover of Perini. Also, we have adopted a rights plan that limits the ability of any person to acquire more than 10% of our common stock, except in limited circumstances. These anti-takeover provisions could substantially impede the ability of public stockholders to benefit from a change in control or to change our management and Board of Directors.

ITEM 2. PROPERTIES

        Properties used in our construction operations are summarized below:

                                          Business                           Owned or            Approximate        Approximate Square
                                         Segment(s)                      Leased by Perini           Acres          Feet of Office Space
                           ----------------------------------------     -------------------     --------------     ---------------------
   Principal Offices
- ------------------------
Framingham, MA               Building, Civil and Management Services          Owned                   9                  100,000
Phoenix, AZ                               Building                            Leased                  -                   22,700
Peekskill, NY                              Civil                              Owned                   2                   21,000
Ft. Lauderdale, FL                        Building                            Leased                  -                   17,500
Las Vegas, NV                             Building                            Leased                  -                    7,400
Celebration, FL                           Building                            Leased                  -                    4,800
Carlsbad, CA                              Building                            Leased                  -                    3,900
Detroit, MI                               Building                            Leased                  -                    2,500
                                                                                                --------------     ---------------------
                                                                                                     11                  179,800
                                                                                                ==============     =====================

  Principal Permanent
     Storage Yards
- ------------------------
Bow, NH                                     Civil                             Owned                  70
Framingham, MA                       Building and Civil                       Owned                   6
Peekskill, NY                               Civil                             Owned                   3
Las Vegas, NV                             Building                            Leased                  2
                                                                                                --------------
                                                                                                     81
                                                                                                ==============

        We believe our properties are well maintained, in good condition, adequate and suitable for our purpose and fully utilized. Properties for sale applicable to our previously discontinued real estate activities are described above under “Real Estate Operations.”

ITEM 3. LEGAL PROCEEDINGS

Mergentime - Perini Joint Ventures vs. WMATA Matter

        On May 11, 1990, contracts with two joint ventures in which Perini Corporation, or Perini, held a 40% interest were terminated by the Washington Metropolitan Area Transit Authority, or WMATA, on two subway construction projects in the District of Columbia. The contracts were awarded to the joint ventures in 1985 and 1986. However, Perini and Mergentime Corporation, or Mergentime, the 60% managing partner, entered into an agreement in 1987 under which Perini withdrew from the joint ventures and Mergentime assumed complete control over the performance of both projects. This agreement did not relieve Perini of its responsibilities to WMATA as a joint venture partner. After Perini withdrew from the joint ventures, Mergentime and WMATA had a dispute regarding progress on the projects. After both construction contracts were terminated, WMATA retained Perini, acting independently, to complete both projects.

        Subsequently, the joint ventures brought an

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action in the United States District Court for the District of Columbia against WMATA, seeking damages for delays, unpaid extra work and wrongful termination and WMATA brought an action against the joint ventures seeking damages for additional costs to complete the projects. After a bench trial, the District Court found the joint ventures liable to WMATA for damages in the amount of approximately $16.5 million and WMATA liable to the joint ventures for damages in the amount of approximately $4.3 million.

        The joint ventures appealed the judgment to the United States Court of Appeals for the District of Columbia, and on February 16, 1999, the Court of Appeals vacated the District Court’s final judgment and ordered the District Court to review its prior findings and hold further hearings in regard to the joint venture’s affirmative claims. In addition, the Court of Appeals held that statutory interest on any of the claims will not accrue until final judgment is entered sometime in the future.

        On February 28, 2001, a successor District Court Judge informed the parties that he could not certify adequate familiarity with the record to complete the remaining proceedings; therefore, he granted the joint ventures’ motion for a new trial. The joint ventures are seeking $28.9 million, plus interest, from WMATA, and WMATA is seeking $29.3 million from the joint ventures. A new trial was completed in January 2002 and a decision is still pending. The ultimate financial impact of the Judge’s pending decision is not yet determinable; therefore, no provision for loss, if any, has been recorded in the financial statements.

Tutor-Saliba-Perini Joint Venture vs. Los Angeles MTA Matter

        During 1995, a joint venture, Tutor-Saliba-Perini, or the Joint Venture, in which Perini Corporation, or Perini, is the 40% minority partner and Tutor-Saliba Corporation, or Tutor-Saliba, of Sylmar, California is the 60% managing partner, filed a complaint in the Superior Court of the State of California for the County of Los Angeles against the Los Angeles County Metropolitan Transportation Authority, or the LAMTA, seeking to recover costs for extra work required by the LAMTA in connection with the construction of certain tunnel and station projects. In February 1999, the LAMTA countered with civil claims under the California False Claims Act against the Joint Venture, Tutor-Saliba and Perini jointly and severally (together, TSP). Ronald N. Tutor, the Chairman and Chief Executive Officer of Perini since March 2000, is also the chief executive officer and the sole stockholder of Tutor-Saliba.

        Claims concerning the construction of the LAMTA projects were tried before a jury in 2001. During trial, the Judge ruled that the Joint Venture had failed to comply with the Court’s prior discovery orders and the Judge penalized TSP, for the alleged non-compliance by dismissing the Joint Venture’s claims and by ruling, without a jury finding, that TSP was liable to the LAMTA for damages on the LAMTA’s counterclaims. The Judge then instructed the jury that TSP was liable to the LAMTA and charged the jury with the responsibility of determining the amount of the damages based on the Judge’s ruling. The jury awarded the LAMTA approximately $29.6 million in damages.

        On March 26, 2002, the Judge amended the award, ordering TSP to pay the LAMTA an additional $33.4 million in costs and attorney fees, with the aggregate $63.0 million award subject to interest at an annual rate of 10% from the date of the award.

        TSP appealed the Judge's discovery sanction, the subsequent judgment and the amended judgment.

        On January 25, 2005, the State of California Court of Appeal issued an opinion in which it reversed the entire $63.0 million trial court’s judgment and found that the trial court judge had abused his discretion and violated TSP’s due process rights and imposed an impermissibly overbroad sanction in issuing terminating sanctions that prevented the Joint Venture from presenting its claims and severely limited TSP in defending itself against the LAMTA’s lawsuit. The Court of Appeal also directed the trial court to dismiss LAMTA’s claims that TSP had violated the Unfair Competition Law and remanded the Joint Venture's claims against LAMTA for extra work required by LAMTA and LAMTA's counterclaim under the California False Claim Act against TSP to the trial court for further proceedings, including a new trial.

        Because this case is now scheduled to be retried, the ultimate financial impact of the lawsuit is not yet determinable. Therefore, no provision for loss, if any, has been recorded in the financial statements.

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City of San Francisco vs. Tutor-Saliba, Perini & Buckley Joint Venture Matter

        In November 2002, the San Francisco City Attorney, on behalf of the City and County of San Francisco and the citizens of California, filed a civil action with a demand for a jury trial against the Tutor-Saliba, Perini & Buckley Joint Venture, or the Joint Venture, Perini Corporation, or Perini, Tutor-Saliba Corporation, or Tutor-Saliba, and Buckley & Company, Inc., or Buckley, and their bonding companies in the United States District Court in San Francisco relating to seven projects for work on the expansion of the San Francisco International Airport. A second amended complaint was filed in July 2003 which, among other things, added Ronald N. Tutor as a defendant. The Joint Venture was established by Tutor-Saliba, Perini and Buckley through two joint venture agreements dated October 28, 1996 and February 11, 1997. The Joint Venture had agreements with the Owner to perform work (“Contracts”) on only two of the above projects (“Projects”) and, as part of those Contracts, the Joint Venture provided performance and payment bonds to the Owner (“Bonds”).

        On or about May 24, 2004, the Court granted substantial portions of the defendants’ motion to dismiss the plaintiffs’ second amended complaint with leave to amend certain causes of action. On June 21, 2004, the plaintiffs filed their third amended complaint. In the third amended complaint, the plaintiffs allege, among other things, various overcharges, bidding violations, violations of minority contracting regulations, civil fraud, violation of the California False Claims and Unfair Competition Acts and breach of contract. In addition, the plaintiffs allege that the defendants have violated the United States Racketeer Influenced Corrupt Organizations Act. The plaintiffs have asserted approximately $45 million in actual damages against the Joint Venture and each of its partners as well as substantial liquidated damages, treble damages, punitive and exemplary damages, various civil penalties and a declaration that Tutor-Saliba and the Joint Venture are irresponsible bidders. The defendants filed a Motion to Dismiss the Third Amended Complaint. in August, 2004. A decision thereon is pending.

        Tutor-Saliba is the managing partner of the Joint Venture and, in December 1997, Perini sold its entire 20% interest in the Joint Venture to Tutor-Saliba. As part of that sale agreement, Tutor-Saliba agreed to indemnify Perini from any liability that Perini is required to pay by reason of or arising out of any event or occurrence subsequent to the date of the sale of Perini’s interest in the Joint Venture in any way connected with the joint venture agreements, the Contracts, the Projects and the Bonds. It is unclear based on the plaintiff’s current complaint whether the claims against the Joint Venture arise out of events that occurred subsequent to the date of the sale of Perini’s interest. The ultimate financial impact of this action is not yet determinable.

Redondo/Perini Joint Venture vs. Siemens Transportation Matter

        This is a binding arbitration proceeding arising out of a contract between the Redondo/Perini Joint Venture, or RPJV, a joint venture in which Perini and Redondo Construction Corp., or Redondo, each have a 50% interest and the Siemens Transportation Partnership, S.E., Puerto Rico, or STP. STP is constructing a public metropolitan passenger rail transportation project for the Commonwealth of Puerto Rico and RPJV is responsible for the design and construction of a portion of the project.

        On March 19, 2002, Redondo filed a petition for reorganization under 11 U.S.C. Chapter 11 in U.S. Bankruptcy Court for the District of Puerto Rico.

        On December 23, 2002, RPJV filed an arbitration demand against STP seeking the recovery of approximately $38 million of additional costs related to design changes and the late completion of the design. On January 31, 2003, STP filed a counter-demand against RPJV seeking the recovery of damages allegedly related to defects in design and construction and the late completion of RPJV’s work in the amount of approximately $17.9 million along with the repayment of approximately $22.6 million for alleged advances previously paid to RPJV.

        The parties have each revised their statement of damages. RPJV’s total claim is approximately $74 million. STP’s revised claim is now approximately $54.5 million, including its claim