2. Kiewit Corp
4. Granite Construction Inc.
5. Skanska USA Inc.
7. Flatiron Construction Co.
10. Balfour Beatty Infrastructure Inc.
13. Weeks Marine Inc.
16. American Bridge Co.
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2. Kiewit Corp 4. Granite Construction Inc. 5. Skanska USA Inc. 7. Flatiron Construction Co. 10. Balfour Beatty Infrastructure Inc. 13. Weeks Marine Inc. 16. American Bridge Co. Top Transportation
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