Exhibit 10.18 AMENDMENT NO. 1 TO CREDIT AGREEMENT AMENDMENT NO. 1 dated as of November 10, 1997 among PERINI CORPORATION (the "Borrower"), the BANKS listed on the signature pages hereof (collectively, the "Banks") and MORGAN GUARANTY TRUST COMPANY OF...Credit Agreement • March 15th, 1999 • Perini Corp • General bldg contractors - nonresidential bldgs • New York
Exhibit 10.20 AMENDMENT NO. 3 TO CREDIT AGREEMENT AMENDMENT NO. 3 dated as of September 9, 1998 among PERINI CORPORATION (the "Borrower"), the BANKS listed on the signature pages hereof (collectively, the "Banks") and MORGAN GUARANTY TRUST COMPANY OF...Credit Agreement • March 15th, 1999 • Perini Corp • General bldg contractors - nonresidential bldgs • New York
