| (X) | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE |
|-----|-----------------------------------------------------------------------------|

|   |      ACT OF 1934 |
|--------|--------------------------------------|

| (  ) | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES |
|----------------|---------------------------------------------------------------------|

|   |      EXCHANGE ACT OF 1934 |
|--------|-----------------------------------------------|

| MASSACHUSETTS                                                 | 04-1717070                          |
|---------------------------------------------------------------|-------------------------------------|
| (State or other jurisdiction ofincorporation or organization) | (I.R.S. EmployerIdentification No.) |

| Large accelerated filer ___ | Accelerated filer  X | Non-Accelerated filer  ___ | Smaller reporting company  __ |
|-----------------------------|---------------------------|--------------------------------------|-----------------------------------------|

----

|       |                   |                                                                                                        | Page Number |
|------------|------------------------|-------------------------------------------------------------------------------------------------------------|-------------|
| Part I. -  | Financial Information: |                                                                                                        |
|       |                   |                                                                                                        |        |
|       | Item 1.                | Financial Statements (Unaudited)                                                                            |        |
|       |                   |                                                                                                        |        |
|       |                   | Consolidated Condensed Balance Sheets –June 30, 2010 and December 31, 2009                            | 3           |
|       |                   |                                                                                                        |        |
|       |                   | Consolidated Condensed Statements of Income –Three Months and Six Months ended June 30, 2010 and 2009 | 4           |
|       |                   |                                                                                                        |        |
|       |                   | Consolidated Condensed Statement of Stockholders’ Equity –Six Months ended June 30, 2010        | 5           |
|       |                   |                                                                                                        |        |
|       |                   | Consolidated Condensed Statements of Cash Flows  –Six Months ended June 30, 2010 and 2009   | 6           |
|       |                   |                                                                                                        |        |
|       |                   | Notes to Consolidated Condensed Financial Statements                                                        | 7-21        |
|       |                   |                                                                                                        |        |
|       | Item 2.                | Management's Discussion and Analysis of Financial Condition and Results of Operations                       | 22-29       |
|       |                   |                                                                                                        |        |
|       | Item 3.                | Quantitative and Qualitative Disclosures About Market Risk                                                  | 29          |
|       |                   |                                                                                                        |        |
|       | Item 4.                | Controls and Procedures                                                                                     | 29          |
|       |                   |                                                                                                        |        |
| Part II. - | Other Information:     |                                                                                                        |
|       |                   |                                                                                                        |        |
|       | Item 1.                | Legal Proceedings                                                                                           | 29          |
|       |                   |                                                                                                        |        |
|       | Item 1A.               | Risk Factors                                                                                                | 30          |
|       |                   |                                                                                                        |        |
|       | Item 2.                | Unregistered Sales of Equity Securities and Use of Proceeds                                                 | 30          |
|       |                   |                                                                                                        |        |
|       | Item 3.                | Defaults Upon Senior Securities                                                                             | 30          |
|       |                   |                                                                                                        |        |
|       | Item 4.                | Removed and Reserved                                                                                        | 30          |
|       |                   |                                                                                                        |        |
|       | Item 5.                | Other Information                                                                                           | 30          |
|       |                   |                                                                                                        |        |
|       | Item 6.                | Exhibits                                                                                                    | 30-31       |
|       |                   |                                                                                                        |        |
|       | Signatures             | 32                                                                                                          |
|       |                   |                                                                                                        |
|       |                   |                                                                                                        |

----

|                                                                   |   | JUNE 30, 2010 |      |   | DECEMBER 31, 2009 |   |
|------------------------------------------------------------------------|--------|---------------|-----------|--------|-------------------|--------|
| ASSETS                                                                 |   |          |      |   |              |   |
| Cash and Cash Equivalents                                              |   | $             | 303,212   |   |              | $      | 348,309 |   |
| Restricted Cash                                                        |   |          | 23,523    |   |              |   | - |   |
| Accounts Receivable, including retainage                               |   |          | 1,193,315 |   |              |   | 1,088,386 |   |
| Costs and Estimated Earnings in Excess of Billings                     |   |          | 120,280   |   |              |   | 145,678 |   |
| Deferred Income Taxes                                                  |   |          | 1,369     |   |              |   | 1,370 |   |
| Other Current Assets                                                   |   |          | 37,345    |   |              |   | 30,811 |   |
| Total Current Assets                                                   |   |          | 1,679,044 |   |              |   | 1,614,554 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Long-term Investments                                                  |   |          | 100,316   |   |              |   | 101,201 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Property and Equipment (net of Accumulated Depreciation                |   |          |      |   |              |   |   |   |
| of $73,045 in 2010 and $67,256 in 2009)                                |   |          | 353,506   |   |              |   | 348,821 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Other Assets:                                                          |   |          |      |   |              |   |   |   |
|    Goodwill                                             |   |          | 602,471   |   |              |   | 602,471 |   |
|    Intangible Assets, net                               |   |          | 130,051   |   |              |   | 134,327 |   |
| Other                                                                  |   |          | 17,303    |   |              |   | 19,280 |   |
|                                                                   |   | $             | 2,882,691 |   |              | $      | 2,820,654 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| LIABILITIES AND STOCKHOLDERS’ EQUITY                             |   |          |      |   |              |   |   |   |
| Current Maturities of Long-term Debt                                   |   | $             | 31,014    |   |              | $      | 31,334 |   |
| Accounts Payable, including retainage                                  |   |          | 950,492   |   |              |   | 990,551 |   |
| Billings in Excess of Costs and Estimated Earnings                     |   |          | 259,963   |   |              |   | 187,714 |   |
| Accrued Expenses                                                       |   |          | 92,864    |   |              |   | 101,837 |   |
| Total Current Liabilities                                              |   |          | 1,334,333 |   |              |   | 1,311,436 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Long-term Debt, less current maturities included above                 |   |          | 82,939    |   |              |   | 84,771 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Deferred Income Taxes                                                  |   |          | 78,150    |   |              |   | 78,977 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Other Long-term Liabilities                                            |   |          | 50,789    |   |              |   | 57,044 |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Contingencies and Commitments                                          |   |          | -         |   |              |   | - |   |
|                                                                   |   |          |      |   |              |   |   |   |
| Stockholders’ Equity:                                            |   |          |      |   |              |   |   |   |
| Common Stock - $1 par value: 75,000,000 shares authorized;             |   |          |      |   |              |   |   |   |
| Shares issued and outstanding: 48,595,682 and 48,538,982, respectively |   |          | 48,596    |   |              |   | 48,539 |   |
| Additional Paid-in Capital                                             |   |          | 1,007,327 |   |              |   | 1,012,983 |   |
| Retained Earnings                                                      |   |          | 313,779   |   |              |   | 260,121 |   |
| Accumulated Other Comprehensive Loss                                   |   |          | (33,222   | )      |              |   | (33,217 | ) |
|       Total Stockholders' Equity         |   |          | 1,336,480 |   |              |   | 1,288,426 |   |
|                                                                   |   |          |      |   |              |   |   |   |
|                                                                   |   | $             | 2,882,691 |   |              | $      | 2,820,654 |   |

|   |  The accompanying notes are an integral part of these consolidated condensed financial statements. |
|--------|---------------------------------------------------------------------------------------------------------|

----

|                                            |   |   |               |    |             |   |
|-------------------------------------------------|--------|--------|--------------------|---------|------------------|--------|
|                                            |   |   | THREE MONTHS ENDED |    | SIX MONTHS ENDED |   |
|                                            |   |   | JUNE 30,           |    | JUNE 30,         |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |
|                                            |   |   | 2010               |    |             | 2009   |   |   |  2010 |   | 2009 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Revenues                                        |   |   | $                  | 914,376 |             |   | $ | 1,382,748 |   | $ | 1,779,451 |   | $ | 2,901,030 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Cost of Operations                              |   |   |               | 815,464 |             |   |   | 1,274,535 |   |   | 1,604,406 |   |   | 2,685,907 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Gross Profit                                    |   |   |               | 98,912  |             |   |   | 108,213 |   |   | 175,045 |   |   | 215,123 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| General and Administrative Expenses             |   |   |               | 43,061  |             |   |   | 44,453 |   |   | 85,037 |   |   | 88,729 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| INCOME FROM CONSTRUCTION OPERATIONS             |   |   |               | 55,851  |             |   |   | 63,760 |   |   | 90,008 |   |   | 126,394 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Other Income (Expense), net                     |   |   |               | (1,102  | )                |   |   | 619 |   |   | (757 | )   |   | 1,885 |   |
| Interest Expense                                |   |   |               | (3,244  | )                |   |   | (2,864 | ) |   | (4,765 | )  |   | (4,094 | )    |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Income before Income Taxes                      |   |   |               | 51,505  |             |   |   | 61,515 |   |   | 84,486 |   |   | 124,185 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| Provision for Income Taxes                      |   |   |               | (18,780 | )                |   |   | (22,618 | ) |   | (30,828 | )   |   | (46,307 | )    |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| NET INCOME                                      |   |   | $                  | 32,725  |             |   | $ | 38,897 |   | $ | 53,658 |   | $ | 77,878 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| BASIC EARNINGS PER COMMON SHARE                 |   |   | $                  | 0.67    |             |   | $ | 0.80 |   | $ | 1.09 |   | $ | 1.61 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| DILUTED EARNINGS PER COMMON SHARE               |   |   | $                  | 0.66    |             |   | $ | 0.79 |   | $ | 1.09 |   | $ | 1.59 |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
|                                            |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:     |   |   |               |    |             |   |   |   |   |   |   |   |   |   |   |
| BASIC                                           |   |   |               | 49,001  |             |   |   | 48,521 |   |   | 49,013 |   |   | 48,518 |   |
| Effect of Dilutive Stock Options and Restricted |   |   |               |    |             |   |   |   |   |   |   |   |   |   |
| Stock Units Outstanding                         |   |   |               | 535     |             |   |   | 476 |   |   | 436 |   |   | 490 |   |
| DILUTED                                         |   |   |               | 49,536  |             |   |   | 48,997 |   |   | 49,449 |   |   | 49,008 |   |

----

|                                                   |   |   |   |   |       |   |      |     |   |   | Accumulated   |   |   |   |    |
|--------------------------------------------------------|--------|--------|--------|--------|------------|--------|-----------|----------|--------|--------|---------------|--------|--------|--------|---------|
|                                                   |   |   |   |   | Additional |   |      |     |   |   | Other         |   |   |   |    |
|                                                   |   | Common |   |   | Paid-in    |   |      | Retained |   |   | Comprehensive |   |   |   |    |
|                                                   |   | Stock  |   |   | Capital    |   |      | Earnings |   |   | Loss          |   |   | Total  |    |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |
| Balance - December 31, 2009                            |   | $      | 48,539 |   |       | $      | 1,012,983 |     |   | $      | 260,121       |   |   | $      | (33,217 | ) |   | $ | 1,288,426 |   |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Net Income                                             |   |   | -      |   |       |   | -         |     |   |   | 53,658        |   |   |   | -       |   |   |   | 53,658 |   |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Other comprehensive income (loss):                     |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Foreign currency translation                           |   |   | -      |   |       |   | -         |     |   |   | -             |   |   |   | (5      | ) |   |   | (5 | ) |
| Total comprehensive income                             |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   | 53,653 |   |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Common Stock repurchased under                         |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
|      share repurchase program |   |   | (617   | )      |       |   | (10,583   | )        |   |   | -             |   |   |   | -       |   |   |   | (11,200 | ) |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Tax effect of stock-based compensation                 |   |   | -      |   |       |   | (1,939    | )        |   |   | -             |   |   |   | -       |   |   |   | (1,939 | ) |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Stock-based compensation expense                       |   |   | -      |   |       |   | 7,477     |     |   |   | -             |   |   |   | -       |   |   |   | 7,477 |   |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Issuance of Common Stock, net                          |   |   | 674    |   |       |   | (611      | )        |   |   | -             |   |   |   | -       |   |   |   | 63 |   |
|                                                   |   |   |   |   |       |   |      |     |   |   |          |   |   |   |    |   |   |   |   |   |
| Balance - June 30, 2010                                |   | $      | 48,596 |   |       | $      | 1,007,327 |     |   | $      | 313,779       |   |   | $      | (33,222 | ) |   | $ | 1,336,480 |   |

----

|                                                                                   |   | SIX MONTHS ENDED |    |
|----------------------------------------------------------------------------------------|--------|------------------|---------|
|                                                                                   |   | June 30,         |    |
|                                                                                   |   | 2010             |    |   | 2009 |   |
| Cash Flows from Operating Activities:                                                  |   |             |    |   |   |   |
| Net Income                                                                             |   | $                | 53,658  |   |   | $ | 77,878 |   |
| Adjustments to reconcile Net Income to net cash from operating activities:             |   |             |    |   |   |   |   |   |
|        Depreciation and amortization                     |   |             | 15,889  |   |   |   | 20,632 |   |
|        Stock-based compensation expense                  |   |             | 7,477   |   |   |   | 4,295 |   |
|        Adjustment of investments to fair value           |   |             | 182     |   |   |   | (22 | ) |
|        Deferred Income Taxes                             |   |             | (2,124  | ) |   |   | (4,685 | ) |
|        Loss on sale of equipment                         |   |             | 434     |   |   |   | 318 |   |
|        Loss on land held for sale                        |   |             | -       |   |   |   | 169 |   |
|        Other Long-term Liabilities                            |   |             | (3,077  | ) |   |   | (34,025 | ) |
|        Changes in other components of working capital         |   |             | (59,755 | ) |   |   | (105,118 | ) |
|                                                                                   |   |             |    |   |   |   |   |   |
|     NET CASH PROVIDED BY (USED IN)  OPERATING ACTIVITIES |   | $                | 12,684  |   |   | $ | (40,558 | ) |
|                                                                                   |   |             |    |   |   |   |   |   |
| Cash Flows from Investing Activities:                                                  |   |             |    |   |   |   |   |   |
| Business acquisition related payments                                                  |   | $                | (6,734  | ) |   | $ | (6,900 | ) |
| Acquisition of Property and Equipment                                                  |   |             | (8,509  | ) |   |   | (19,408 | ) |
| Proceeds from sale of Property and Equipment                                           |   |             | 808     |   |   |   | 992 |   |
| Investment in land held for sale                                                       |   |             | -       |   |   |   | (699 | ) |
| Proceeds from sale of available-for-sale securities                                    |   |             | 525     |   |   |   | 3,600 |   |
| Increase in Restricted Cash                                                            |   |             | (23,523 | ) |   |   | - |   |
| Investment in other activities                                                         |   |             | (146    | ) |   |   | 520 |   |
|                                                                                   |   |             |    |   |   |   |   |   |
|     NET CASH USED IN INVESTING ACTIVITIES                          |   | $                | (37,579 | ) |   | $ | (21,895 | ) |
|                                                                                   |   |             |    |   |   |   |   |   |
| Cash Flows from Financing Activities:                                                  |   |             |    |   |   |   |   |   |
| Proceeds from Debt                                                                     |   | $                | 8,724   |   |   | $ | 138,182 |   |
| Repayment of Debt                                                                      |   |             | (16,181 | ) |   |   | (10,602 | ) |
|   Common Stock repurchased under share  repurchase program         |   |             | (11,200 | ) |   |   | - |   |
| Issuance of Common Stock and effect of cashless exercise                               |   |             | 63      |   |   |   | 139 |   |
| Deferred debt costs                                                                    |   |             | (1,608  | ) |   |   | (517 | ) |
|                                                                                   |   |             |    |   |   |   |   |   |
|     NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES            |   | $                | (20,202 | ) |   | $ | 127,202 |   |
|                                                                                   |   |             |    |   |   |   |   |   |
| Net (Decrease) Increase in Cash and Cash Equivalents                                   |   |             | (45,097 | ) |   |   | 64,749 |   |
| Cash and Cash Equivalents at Beginning of Year                                         |   |             | 348,309 |   |   |   | 386,172 |   |
|                                                                                   |   |             |    |   |   |   |   |   |
| Cash and Cash Equivalents at End of Period                                             |   | $                | 303,212 |   |   | $ | 450,921 |   |
|                                                                                   |   |             |    |   |   |   |   |   |
| Supplemental Disclosure of Cash Paid During the Period For:                            |   |             |    |   |   |   |   |   |
| Interest                                                                               |   | $                | 2,868   |   |   | $ | 4,136 |   |
| Income taxes                                                                           |   | $                | 20,306  |   |   | $ | 44,335 |   |
|                                                                                   |   |             |    |   |   |   |   |   |
| Supplemental Disclosure of Non-cash Transactions:                                      |   |             |    |   |   |   |   |   |
| Property and Equipment acquired through financing arrangements                         |   | $                | 6,054   |   |   | $ | 257 |   |

----

| (1) | Basis of Presentation |
|-----|-----------------------|

| (2) | Significant Accounting Policies |
|-----|---------------------------------|

| (3) | Cash, Cash Equivalents and Restricted Cash |
|-----|--------------------------------------------|

----

|   |                                                                                                     |   | June 30, |    |   | December 31, |   |
|--------|----------------------------------------------------------------------------------------------------------|--------|----------|---------|--------|--------------|--------|
|   |                                                                                                     |   | 2010     |    |   | 2009         |   |
|   |                                                                                                     |   |     |    |
|   | Corporate Cash and Cash Equivalents (1)                                                                  |   | $        | 284,430 |   |         | $      | 323,867 |   |
|   |                                                                                                     |   |     |    |   |         |   |   |   |
|   | Company's share of joint venture Cash and Cash Equivalents (2)                                           |   |     | 18,782  |   |         |   | 24,442 |   |
|   | Total Cash and Cash Equivalents                                                                          |   | $        | 303,212 |   |         | $      | 348,309 |   |
|   |                                                                                                     |   |     |    |   |         |   |   |   |
|   | Restricted Cash                                                                                          |   | $        | 23,523  |   |         | $      | - |   |
|   |                                                                                                     |   |     |    |   |         |   |   |   |
|   | (1)  Available for general corporate purposes                                                       |   |     |    |   |         |
|   | (2)  Available for joint venture purposes, including future distributions to joint venture partners |   |

| (4) | Fair Value Measurements |
|-----|-------------------------|

|   | Level 1 – inputs are unadjusted quoted prices in active markets for identical assets or liabilities. |
|--------|------------------------------------------------------------------------------------------------------------|

|   | Level 2 – inputs are other than quoted prices in active markets that are either directly or indirectly observable through market corroboration. |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | Level 3 – inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions based on the best information available in the circumstances. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (4) | Fair Value Measurements (continued) |
|-----|-------------------------------------|

|                                                     |   |                               |          |   | Fair Value Measurements at June 30, 2010 Using |
|----------------------------------------------------------|--------|------------------------------------|---------------|--------|------------------------------------------------|
|                                                     |   | TotalCarryingValue atJune 30, 2010 |          |   | Quotedprices inactivemarkets(Level 1)          |   |   | Significant other observable inputs(Level 2) |   |   | Significant unobservable inputs (Level 3) |
|                                                     |   |                               |
| Cash and Cash Equivalents (1)                            |   | $                                  | 303,212       |   |                                           | $ | 303,212 |   |   | $ | - |   |   | $ | - |
| Restricted Cash (1)                                      |   |                               | 23,523        |   |                                           |   | 23,523 |   |   |   | - |   |   |   | - |
| Short-term Investments (2)                               |   |                               | 75            |   |                                           |   | 75 |   |   |   | - |   |   |   | - |
| Long-term Investments –Auction rate securities (3) |   |                               |  100,316 |   |                                           |   |  - |   |   |   |  - |   |   |   |  100,316 |
| Total                                                    |   | $                                  | 427,126       |   |                                           | $ | 326,810 |   |   | $ | - |   |   | $ | 100,316 |

|                                                     |   |                                  |          |   | Fair Value Measurements at December 31, 2009 Using |
|----------------------------------------------------------|--------|---------------------------------------|---------------|--------|----------------------------------------------------|
|                                                     |   | TotalCarryingValue atDecember 31,2009 |          |   | Quotedprices inactivemarkets(Level 1)              |   |   | Significant other observable inputs(Level 2) |   |   | Significant unobservable inputs (Level 3) |
|                                                     |   |                                  |
| Cash and Cash Equivalents (1)                            |   | $                                     | 348,309       |   |                                               | $ | 348,309 |   |   | $ | - |   |   | $ | - |
| Restricted Cash (1)                                      |   |                                  | -             |   |                                               |   | - |   |   |   | - |   |   |   | - |
| Short-term Investments (2)                               |   |                                  | 76            |   |                                               |   | 76 |   |   |   | - |   |   |   | - |
| Long-term Investments –Auction rate securities (3) |   |                                  |  101,201 |   |                                               |   |  - |   |   |   |  - |   |   |   |  101,201 |
| Total                                                    |   | $                                     | 449,586       |   |                                               | $ | 348,385 |   |   | $ | - |   |   | $ | 101,201 |
|                                                     |   |                                  |          |   |                                               |   |   |   |   |   |   |   |   |   |   |

|   | (1) | Cash, Cash Equivalents and Restricted Cash consist primarily of money market funds with original maturity dates of three months or less, for which fair value is determined through quoted market prices. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (2) | Short-term Investments are included in Other Current Assets and consist of an S&P 500 index mutual fund for which fair value is determined through quoted market prices. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (3) | At June 30, 2010, the Company had $100.3 million invested in auction rate securities (“ARS”) which the Company considers as available-for-sale.  The majority of the ARS held by the Company at June 30, 2010, are in securities collateralized by student loan portfolios, totaling $74.4 million, which are guaranteed by the U.S. government.  Additional amounts totaling $17.9 million are invested in securities collateralized by student loan portfolios, which are privately insured.  The remainder of the securities, totaling $8.0 million, is invested in tax-exempt bonds.  At December 31, 2009, the Company had $101.2 million invested in ARS which included $93.2 million in securities collateralized by student loan portfolios ($75.3 million guaranteed by the U.S. government and $17.9 million privately insured) and $8.0 million invested in tax-exempt bonds.  Substantially all of the Company’s ARS are rated AAA or Aaa.  The Company estimated the fair value of its ARS utilizing an income approach valuation model which considered, among other items, the following inputs: (i) the underlying structure of each security; (ii) the present value of future principal and interest payments discounted at rates considered to reflect current market conditions; and (iii) consideration of the probabilities of default or repurchase at par for each period.  As a result of the fair valuation analysis performed, the Company recorded a pre-tax impairment charge of $0.4 million during the three months ended June 30, 2010.  This charge was deemed to be other-than-temporary and was recorded as a charge against income. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (4) | Fair Value Measurements (continued) |
|-----|-------------------------------------|

|                                                      |   | Auction Rate |    |
|-----------------------------------------------------------|--------|--------------|---------|
|                                                      |   | Securities   |    |
|                                                      |   |         |    |
| Balance at December 31, 2009                              |   | $            | 101,201 |   |
| Settlements                                               |   |         | (375    | ) |
| Balance at March 31, 2010                                 |   |         | 100,826 |   |
| Settlements                                               |   |         | (150    | ) |
| Impairment charge included in Other Income (Expense), net |   |         | (360    | ) |
| Balance at June 30, 2010                                  |   | $            | 100,316 |   |

|                                                                  |   | Auction Rate |    |
|-----------------------------------------------------------------------|--------|--------------|---------|
|                                                                  |   | Securities   |    |
|                                                                  |   |         |    |
| Balance at December 31, 2008                                          |   | $            | 104,779 |   |
| Settlements                                                           |   |         | (1,350  | ) |
| Balance at March 31, 2009                                             |   |         | 103,429 |   |
| Settlements                                                           |   |         | (2,250  | ) |
| Reversal of impairment charge included in Other Income (Expense), net |   |         | 22      |   |
| Balance at June 30, 2009                                              |   | $            | 101,201 |   |

| (5) | Goodwill and Other Intangible Assets |
|-----|--------------------------------------|

|                         |   |     |     |   |   |   |    | Management |   |   |    |   |
|------------------------------|--------|----------|----------|--------|--------|--------|---------|------------|--------|--------|---------|--------|
|                         |   | Building |     |   | Civil  |   |    | Services   |   |   | Total   |   |
|                         |   |     |     |   |   |   |    |       |   |   |    |   |
| Gross Goodwill               |   | $        | 401,744  |   |   | $      | 300,987 |       |   | $      | 66,638  |   |   | $ | 769,369 |   |
| Accumulated impairment       |   |     | (146,847 | )      |   |   | -       |       |   |   | (20,051 | )      |   |   | (166,898 | )  |
| Balance at December 31, 2009 |   | $        | 254,897  |   |   | $      | 300,987 |       |   | $      | 46,587  |   |   | $ | 602,471 |   |
| Balance at June 30, 2010     |   | $        | 254,897  |   |   | $      | 300,987 |       |   | $      | 46,587  |   |   | $ | 602,471 |   |

----

| (5) | Goodwill and Other Intangible Assets (continued) |
|-----|--------------------------------------------------|

|                                    |   | As of June 30, 2010 |    |
|-----------------------------------------|--------|---------------------|---------|
|                                    |   | Cost                |    |   | AccumulatedAmortization |   |   | Net CarryingValue |   |
| Trade names                        |   | $                   | 96,150  |   |   | $ | - |   |   | $ | 96,150 |   |
| Contractor license                 |   |                | 5,320   |   |   |   | - |   |   |   | 5,320 |   |
| Customer relationships             |   |                | 31,700  |   |   |   | (5,679 | ) |   |   | 26,021 |   |
| Construction contract backlog |   |                | 33,340  |   |   |   | (30,900 | ) |   |   | 2,440 |   |
| Non-compete agreements             |   |                | 2,400   |   |   |   | (2,280 | ) |   |   | 120 |   |
| Total                                   |   | $                   | 168,910 |   |   | $ | (38,859 | ) |   | $ | 130,051 |   |

|                                    |   | As of December 31, 2009 |    |
|-----------------------------------------|--------|-------------------------|---------|
|                                    |   | Cost                    |    |   | AccumulatedAmortization |   |   | Net CarryingValue |   |
| Trade names                        |   | $                       | 96,150  |   |   | $ | - |   |   | $ | 96,150 |   |
| Contractor license                 |   |                    | 5,320   |   |   |   | - |   |   |   | 5,320 |   |
| Customer relationships             |   |                    | 31,700  |   |   |   | (4,243 | ) |   |   | 27,457 |   |
| Construction contract backlog |   |                    | 33,340  |   |   |   | (28,300 | ) |   |   | 5,040 |   |
| Non-compete agreements             |   |                    | 2,400   |   |   |   | (2,040 | ) |   |   | 360 |   |
| Total                                   |   | $                       | 168,910 |   |   | $ | (34,583 | ) |   | $ | 134,327 |   |

| (6) | Contingencies and Commitments |
|-----|-------------------------------|

----

| (6) | Contingencies and Commitments (continued) |
|-----|-------------------------------------------|

----

| (6) | Contingencies and Commitments (continued) |
|-----|-------------------------------------------|

----

| (6) | Contingencies and Commitments (continued) |
|-----|-------------------------------------------|

| Fontainebleau Matter |
|----------------------|

----

| (6) | Contingencies and Commitments (continued) |
|-----|-------------------------------------------|

----

| (6) | Contingencies and Commitments (continued) |
|-----|-------------------------------------------|

| Honeywell Street/Queens Boulevard Bridges Matter |
|--------------------------------------------------|

| (7) | Common Stock Repurchase Program |
|-----|---------------------------------|

----

| (7) | Common Stock Repurchase Program (continued) |
|-----|---------------------------------------------|

| (8) | Stock-Based Compensation |
|-----|--------------------------|

|                                       |   |      |      |   | Weighted Average |   |   | Aggregate |   |
|--------------------------------------------|--------|-----------|-----------|--------|------------------|--------|--------|-----------|--------|
|                                       |   | Number    |      |   | Grant Date       |   |   | Intrinsic |   |
|                                       |   | of Shares |      |   | Fair Value       |   |   | Value     |   |
| Granted and Unvested - January 1, 2010     |   |      | 1,717,501 |   |             | $      | 24.05  |      |   | $ | 31,052,418 |   |
| Vested                                     |   |      | (610,001  | )      |             |   | 19.09  |      |   |   | 11,644,919 |   |
| Granted                                    |   |      | 208,333   |   |             |   | 20.44  |      |   |   | 3,433,328 |   |
| Forfeited                                  |   |      | (25,000   | )      |             |   | 26.19  |      |   |   | - |   |
| Total Granted and Unvested                 |   |      | 1,290,833 |   |             |   | 21.42  |      |   |   | 21,272,928 |   |
| Approved for grant                         |   |      | 516,667   |   |             | (a)    |   |      |   | 8,514,672 |   |
| Total Awarded and Unvested - June 30, 2010 |   |      | 1,807,500 |   |             | n.a.   |   |      |   | 29,787,600 |   |

----

| (8) | Stock-Based Compensation (continued) |
|-----|--------------------------------------|

|   | (a) | Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   |         |   | Number    |
|--------|--------------|--------|-----------|
|   | Vesting Date |   | of Awards |
|   |         |   |      |
|   | 2010         |   | 50,000    |
|   | 2011         |   | 233,333   |
|   | 2012         |   | 233,333   |
|   | 2013         |   | 1,140,834 |
|   | 2014         |   | 150,000   |
|   | Total        |   | 1,807,500 |

|                                            |   |      |      |   | Weighted Average |   |
|-------------------------------------------------|--------|-----------|-----------|--------|------------------|--------|
|                                            |   | Number    |      |   | Grant Date       |   |   | Exercise |   |
|                                            |   | of Shares |      |   | Fair Value       |   |   | Price |   |
| Total Awarded and Outstanding - January 1, 2010 |   |      | 935,000   |   |             | $      | 11.42 |   |   | $ | 20.51 |   |
| Granted                                         |   |      | 150,000   |   |             |   | 9.79 |   |   |   | 20.44 |   |
| Forfeited                                       |   |      | (25,000   | )      |             |   | 14.84 |   |   |   | 26.19 |   |
| Total Granted and Outstanding                   |   |      | 1,060,000 |   |             |   | 11.11 |   |   |   | 20.36 |   |
| Approved for grant                              |   |      | 450,000   |   |             | (a)    |   |   |   | 20.33 |   |
| Total Awarded and Outstanding - June 30, 2010   |   |      | 1,510,000 |   |             | n.a.   |   |   |   | 20.35 |   |

|   | (a) | Grant date fair value cannot be determined currently because the related performance targets for future years have not yet been established by the Compensation Committee. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (8) | Stock-Based Compensation (continued) |
|-----|--------------------------------------|

| Risk-free interest rate                  |   |   |  2.65%     |   |
|------------------------------------------|--------|--------|-----------------|--------|
| Expected life of options                 |   |   |  5.7 years |   |
| Expected volatility of underlying stock  |   |   | 48.38%          |   |
| Expected quarterly dividends (per share) |   |   |  $0.00     |   |

| (9) | Financial Commitments |
|-----|-----------------------|

----

| (10) | Earnings per Common Share |
|------|---------------------------|

| (11) | Business Segments |
|------|-------------------|

|                |   | Three Months Ended June 30, 2010 |    |   | Three Months Ended June 30, 2009    |   |
|---------------------|--------|----------------------------------|---------|--------|-------------------------------------|--------|
|                |   | Revenues                         |    |   | Income from Construction Operations |   |   | Revenues |   |   | Income from Construction Operations |   |
|                |   |                             |    |   |                                |   |   |   |   |   |   |   |
| Building            |   | $                                | 663,157 |   |                                | $      | 29,686 |   |   | $ | 1,215,982 |   |   | $ | 38,153 |   |
| Civil               |   |                             | 197,431 |   |                                |   | 29,720 |   |   |   | 97,229 |   |   |   | 21,688 |   |
| Management Services |   |                             | 53,788  |   |                                |   | 6,848 |   |   |   | 69,537 |   |   |   | 14,196 |   |
|                |   |                             | 914,376 |   |                                |   | 66,254 |   |   |   | 1,382,748 |   |   |   | 74,037 |   |
| Corporate *         |   |                             | -       |   |                                |   | (10,403 | ) |   |   | - |   |   |   | (10,277 | )  |
| Total               |   | $                                | 914,376 |   |                                | $      | 55,851 |   |   | $ | 1,382,748 |   |   | $ | 63,760 |   |

|                |   | Six Months Ended June 30, 2010 |      |   | Six Months Ended June 30, 2009      |   |
|---------------------|--------|--------------------------------|-----------|--------|-------------------------------------|--------|
|                |   | Revenues                       |      |   | Income from Construction Operations |   |   | Revenues |   |   | Income from Construction Operations |   |
|                |   |                           |      |   |                                |   |   |   |   |   |   |   |
| Building            |   | $                              | 1,349,441 |   |                                | $      | 61,996 |   |   | $ | 2,558,919 |   |   | $ | 81,418 |   |
| Civil               |   |                           | 322,091   |   |                                |   | 38,010 |   |   |   | 186,574 |   |   |   | 34,399 |   |
| Management Services |   |                           | 107,919   |   |                                |   | 9,941 |   |   |   | 155,537 |   |   |   | 29,841 |   |
|                |   |                           | 1,779,451 |   |                                |   | 109,947 |   |   |   | 2,901,030 |   |   |   | 145,658 |   |
| Corporate *         |   |                           | -         |   |                                |   | (19,939 | ) |   |   | - |   |   |   | (19,264 | )  |
| Total               |   | $                              | 1,779,451 |   |                                | $      | 90,008 |   |   | $ | 2,901,030 |   |   | $ | 126,394 |   |
|                |   |                           |      |   |                                |   |   |   |   |   |   |   |   |   |   |   |

| (12) | Employee Pension Plans |
|------|------------------------|

----

| (12) | Employee Pension Plans (continued) |
|------|------------------------------------|

|                           | Three Months   |   |   | Six Months     |   |
|--------------------------------|----------------|--------|--------|----------------|--------|
|                           | Ended June 30, |   |   | Ended June 30, |   |
|                           | 2010           |   | 2009   |           |   | 2010 |   |   | 2009 |   |
|                           |           |   |   |           |   |   |   |
| Interest cost                  |           | $      | 1,139  |           |   | $ | 1,162 |   |   | $ | 2,279 |   |   | $ | 2,324 |   |
| Expected return on plan assets |           |   | (1,241 | )              |   |   | (1,219 | ) |   |   | (2,483 | ) |   |   | (2,438 | ) |
| Amortization of net loss       |           |   | 612    |           |   |   | 473 |   |   |   | 1,224 |   |   |   | 946 |   |
|                           |           |   |   |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Net periodic benefit cost      |           | $      | 510    |           |   | $ | 416 |   |   | $ | 1,020 |   |   | $ | 832 |   |

| (13) | Related Party Transactions |
|------|----------------------------|

----

----

| (dollars in millions)                            |   | Backlog at December 31, 2009 |    | New Business Awarded |   |    | Revenues Recognized |   | Backlog at June 30, 2010 |
|--------------------------------------------------|--------|------------------------------|---------|----------------------|--------|---------|---------------------|--------|--------------------------|
| Six months ended                                 |   |                         |    |                 |   |
|    Building                       |   | $                            | 3,125.8 |                 | $      | 1,278.4 |                |   | $                        | (1,349.4 | ) |   | $ | 3,054.8 |   |
|    Civil                          |   |                         | 1,001.5 |                 |   | 362.7   |                |   |                     | (322.1 | ) |   |   | 1,042.1 |   |
|    Management  Services |   |                         | 182.9   |                 |   | 119.6   |                |   |                     | (107.9 | ) |   |   | 194.6 |   |
| Total                                            |   | $                            | 4,310.2 |                 | $      | 1,760.7 |                |   | $                        | (1,779.4 | ) |   | $ | 4,291.5 |   |

----

|                                            | Revenues for the            |   |   |   |     |   |    |
|-------------------------------------------------|-----------------------------|--------|--------|--------|----------|--------|---------|
|                                            | Three Months Ended June 30, |   |   |   |     |   |    |
| (dollars in millions)                           | 2010                        |   | 2009   |   | $ Change |   |    | % Change |   |
| Building                                        |                        | $      | 663.2  |   |     | $      | 1,216.0 |   |   | $ | (552.8 | ) |   |   | (45.5 | %) |
| Civil                                           |                        |   | 197.4  |   |     |   | 97.2    |   |   |   | 100.2 |   |   |   | 103.1 | % |
| Management Services                             |                        |   | 53.8   |   |     |   | 69.5    |   |   |   | (15.7 | ) |   |   | (22.6 | %) |
|        Total |                        | $      | 914.4  |   |     | $      | 1,382.7 |   |   | $ | (468.3 | ) |   |   | (33.9 | %) |

----

|                                            | Income from Construction    |   |   |   |     |   |   |
|-------------------------------------------------|-----------------------------|--------|--------|--------|----------|--------|--------|
|                                            | Operations for the          |   |   |   |     |   |   |
|                                            | Three Months Ended June 30, |   |   |   |     |   |   |
| (dollars in millions)                           | 2010                        |   | 2009   |   | $ Change |   |   | % Change |   |
| Building                                        |                        | $      | 29.7   |   |     | $      | 38.2   |   |   | $ | (8.5 | ) |   |   | (22.3 | %) |
| Civil                                           |                        |   | 29.7   |   |     |   | 21.7   |   |   |   | 8.0 |   |   |   | 36.9 | % |
| Management Services                             |                        |   | 6.9    |   |     |   | 14.2   |   |   |   | (7.3 | ) |   |   | (51.4 | %) |
| Corporate                                       |                        |   | (10.4  | )      |     |   | (10.3  | ) |   |   | (0.1 | ) |   |   | 1.0 | % |
|        Total |                        | $      | 55.9   |   |     | $      | 63.8   |   |   | $ | (7.9 | ) |   |   | (12.4 | %) |

| (dollars in millions)       |   | June 30, 2010 |   |   | June 30, 2009 |   |   | $ Change |   |   | % Change |   |
|-----------------------------|--------|---------------|--------|--------|---------------|--------|--------|----------|--------|--------|----------|--------|
| Three months ended          |   |          |   |   |          |   |   |     |   |   |     |   |
| Other Income (Expense), net |   | $             | (1.1   | )      |          | $      | 0.6    |     |   | $      | (1.7     | )      |   | n.a. |   |
| Interest Expense            |   |          | 3.2    |   |          |   | 2.9    |     |   |   | 0.3      |   |   |   | 10.3 | % |
| Provision for Income Taxes  |   |          | 18.8   |   |          |   | 22.6   |     |   |   | (3.8     | )      |   |   | (16.8 | %) |

----

|                                            | Revenues for the          |   |    |   |     |   |    |
|-------------------------------------------------|---------------------------|--------|---------|--------|----------|--------|---------|
|                                            | Six Months Ended June 30, |   |    |   |     |   |    |
| (dollars in millions)                           | 2010                      |   | 2009    |   | $ Change |   |    | % Change |   |
| Building                                        |                      | $      | 1,349.4 |   |     | $      | 2,558.9 |   |   | $ | (1,209.4 | ) |   |   | (47.3 | %) |
| Civil                                           |                      |   | 322.1   |   |     |   | 186.6   |   |   |   | 135.5 |   |   |   | 72.6 | % |
| Management Services                             |                      |   | 107.9   |   |     |   | 155.5   |   |   |   | (47.6 | ) |   |   | (30.6 | %) |
|        Total |                      | $      | 1,779.4 |   |     | $      | 2,901.0 |   |   | $ | (1,121.5 | ) |   |   | (38.7 | %) |

|                                            | Income from Construction  |   |   |   |     |   |   |
|-------------------------------------------------|---------------------------|--------|--------|--------|----------|--------|--------|
|                                            | Operations for the        |   |   |   |     |   |   |
|                                            | Six Months Ended June 30, |   |   |   |     |   |   |
| (dollars in millions)                           | 2010                      |   | 2009   |   | $ Change |   |   | % Change |   |
| Building                                        |                      | $      | 62.0   |   |     | $      | 81.4   |   |   | $ | (19.4 | ) |   |   | (23.8 | %) |
| Civil                                           |                      |   | 38.0   |   |     |   | 34.4   |   |   |   | 3.6 |   |   |   | 10.5 | % |
| Management Services                             |                      |   | 9.9    |   |     |   | 29.9   |   |   |   | (20.0 | ) |   |   | (66.9 | %) |
| Corporate                                       |                      |   | (19.9  | )      |     |   | (19.3  | ) |   |   | (0.6 | ) |   |   | 3.1 | % |
|        Total |                      | $      | 90.0   |   |     | $      | 126.4  |   |   | $ | (36.4 | ) |   |   | (28.8 | %) |

----

| (dollars in millions)       |   | June 30, 2010 |   |   | June 30, 2009 |   |   | $ Change |   |   | % Change |   |
|-----------------------------|--------|---------------|--------|--------|---------------|--------|--------|----------|--------|--------|----------|--------|
| Six months ended            |   |          |   |   |          |   |   |     |   |   |     |   |
| Other Income (Expense), net |   | $             | (0.7   | )      |          | $      | 1.9    |     |   | $      | (2.6     | )      |   | n.a. |   |
| Interest Expense            |   |          | 4.8    |   |          |   | 4.1    |     |   |   | 0.7      |   |   |   | 17.1 | % |
| Provision for Income Taxes  |   |          | 30.8   |   |          |   | 46.3   |     |   |   | (15.5    | )      |   |   | (33.5 | %) |

|                                              |   | Six Months Ended June 30, |   |
|---------------------------------------------------|--------|---------------------------|--------|
| (dollars in millions)                             |   | 2010                      |   |   | 2009 |   |
|    Cash flows from:                |   |                      |   |   |   |   |
|    Operating activities            |   | $                         | 12.7   |   |   | $ | (40.6 | ) |
|    Investing activities            |   |                      | (37.6  | ) |   |   | (21.9 | ) |
|    Financing activities            |   |                      | (20.2  | ) |   |   | 127.2 |   |
|    Net (decrease) increase in cash |   |                      | (45.1  | ) |   |   | 64.7 |   |
|    Cash at beginning of year       |   |                      | 348.3  |   |   |   | 386.2 |   |
|    Cash at end of period           |   | $                         | 303.2  |   |   | $ | 450.9 |   |

----

|   | · | our ability to convert backlog into revenue; |
|--------|--------|----------------------------------------------|

|   | · | our ability to successfully and timely complete construction projects; |
|--------|--------|------------------------------------------------------------------------|

|   | · | the potential delay, suspension, termination or reduction in scope of a construction project; |
|--------|--------|-----------------------------------------------------------------------------------------------|

|   | · | 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; |
|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | · | 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; and |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | · | other risks and uncertainties discussed under the heading “Risk Factors” in our Annual Report on |
|--------|--------|--------------------------------------------------------------------------------------------------------------|

|   | Form 10-K for the year ended December 31, 2009 filed with the Securities and Exchange Commission on March 1, 2010. |
|--------|--------------------------------------------------------------------------------------------------------------------|

----

|                                 |   |      |   |   |       |   |   | Total Number of     |   |    | Approximate Dollar   |   |
|--------------------------------------|--------|-----------|--------|--------|------------|--------|--------|---------------------|--------|---------|----------------------|--------|
|                                 |   | Total     |   |   |       |   |   | Shares Purchased    |   |    | Value of Shares that |   |
|                                 |   | Number    |   |   | Average    |   |   | as Part of Publicly |   |    | May Yet Be Purchased |   |
|                                 |   | of Shares |   |   | Price Paid |   |   | Announced Plans     |   |    | Under the Plans or   |   |
| Period                               |   | Purchased |   |   | Per Share  |   |   | or Programs         |   |    | Programs             |   |
| April 1, 2010 – April 30 ,2010 |   | None      |   |   |       | -      |   |                |   | -       |                 |   |   | $68,203,997 |   |
| May 1, 2010 – May 31, 2010     |   | None      |   |   |       | -      |   |                |   | -       |                 |   |   | $68,203,997 |   |
| June 1, 2010 – June 30, 2010   |   | 617,091   |   |   |       | $18.12 |   |                |   | 617,091 |                 |   |   | $57,003,590 |   |
| Total                                |   | 617,091   |   |   |       | $18.12 |   |                |   | 617,091 |                 |   |   | $57,003,590 |   |

| Exhibit 2.1 | Agreement and Plan of Merger, dated as of April 2, 2008, by and among Perini Corporation, Trifecta Acquisition LLC, Tutor-Saliba Corporation, Ronald N. Tutor and shareholders of Tutor-Saliba Corporation signatory thereto (incorporated by reference to Exhibit 2.1 to Form 8-K filed on April 7, 2008). |
|-------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| Exhibit 2.2   | Amendment No. 1 to the Agreement and Plan of Merger, dated as of May 28, 2008, by and among Perini Corporation, Trifecta Acquisition LLC, Tutor-Saliba Corporation, Ronald N. Tutor and shareholders of Tutor-Saliba Corporation signatory thereto (incorporated by reference to Exhibit 2.2 to Form 10-Q filed on August 8, 2008).          |
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.1   | Restated Articles of Organization (incorporated by reference to Exhibit 4 to Form S-2 (File No. 33-28401) filed on April 28, 1989).                                                                                                                                                                                                          |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.2   | Articles of Amendment to the Restated Articles of Organization of Perini Corporation (incorporated by reference to Exhibit 3.2 to Form S-1 (File No. 333-111338) filed on December 19, 2003).                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.3   | Articles of Amendment to the Restated Articles of Organization of Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on April 12, 2000).                                                                                                                                                                         |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.4   | Articles of Amendment to the Restated Articles of Organization of Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on September 11, 2008).                                                                                                                                                                     |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.5   | Articles of Amendment to the Restated Articles of Organization of Perini Corporation (incorporated by reference to Exhibit 3.5 to Form 10-Q filed on August 10, 2009).                                                                                                                                                                       |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 3.6   | Second Amended and Restated By-laws of Tutor Perini Corporation (incorporated by reference to Exhibit 3.1 to Form 8-K filed on November 24, 2009).                                                                                                                                                                                           |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 10.1  | Second Amendment dated January 13, 2010 to the Third Amended and Restated Credit Agreement among Tutor Perini Corporation, the subsidiaries of Tutor Perini identified therein, and Bank of America, N.A., and the other lenders that are parties thereto (incorporated by reference to Exhibit 10.1 to Form 8-K filed on January 21, 2010). |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 10.2  | Extension of Supplemental Facility dated July 16, 2010 to the Third Amended and Restated Credit Agreement among Tutor Perini Corporation, the subsidiaries of Tutor Perini identified therein, and Bank of America, N.A., and the other lenders that are parties thereto – filed herewith.                                             |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 31.1  | Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-OxleyAct of 2002 – filed herewith.                                                                                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 31.2  | Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-OxleyAct of 2002 – filed herewith.                                                                                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| *Exhibit 32.1 | Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – filed herewith.                                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| *Exhibit 32.2 | Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – filed herewith.                                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 99.1  | Commercial Lease Agreement, dated as of November 1, 2005 by and among Krista Investments, Ltd. And Tutor-Saliba Corporation and applicable amendments – filed herewith.                                                                                                                                                                |
|          |                                                                                                                                                                                                                                                                                                                                         |
| Exhibit 99.2  | Industrial Lease Agreement, dated as of June 10, 1987 by and among Ronald N. Tutor And Tutor-Saliba Corporation and applicable amendments – filed herewith.                                                                                                                                                                            |

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|                            | Tutor Perini Corporation                                              |
|---------------------------------|-----------------------------------------------------------------------|
|                            | Registrant                                                            |
|                            |                                                                  |
|                            |                                                                  |
|                            |                                                                  |
| Date:  August 5, 2010 | /s/Kenneth R. Burk                                                    |
|                            | Kenneth R. Burk, Executive Vice President and Chief Financial Officer |
|                            | Duly Authorized Officer and Principal Financial Officer               |