GSA, PBS, NCR, Property Development Division (WPC), Room 2002, 7th & D Streets, SW, Washington, DC 20407

Z -- SEAWALL REPLACEMENT AND REMEDIATION, SOUTHEST FEDERAL CENTER, WASHINGTON, DC SOL GS-11P98MWC0003 DUE 061698 POC Shirley Washington (202)7087630 E-MAIL: shirley.washington@gsa.gov, shirley.washington@gsa.gov. Seawall Replacement and Remediation, Stages 1 and 2, Southeast Federal Center (SEFC), Washington, DC Seawall Replacement and Remediation, SEFC, 3rd and M Streets, SE, Washington, DC. BID is 5/15/98. BOD is 6/16/98. Estimated cost range is $15,000,000 to $20,000,000. This solicitation is not set aside for small business. However, this procurement is being made under the Small Business Competitiveness Demonstration Program. Women -owned businesses are encouraged to submit bids and so state that they are women-owned. Competency of bidder for seawall will be required. The project consists of replacing approximately 1460 feet of existing deteriorated seawall along the shore of the Anacostia River located SEFC. The seawall is to be bid in two stages. Stage 1 (Base Bid) includes 589 feet of the seawall starting at the Washington Navy Yard property line will be bid first. Stage 2 (Option 1) is the remainder of the seawall. The existing seawall is to be demolished and the timber piles pulled from the river bottom. It consist of a timber relieving platform consisting of timber piles, timber wales, pile caps, timber decking and a timber bulkhead made up of three staggered layers of timber sheeting for a total thickness of twelve inches. The platform deck is located just above mean low water with approximately seven to eight feet of fill gravity concrete retaining wall constructed over the relieving platform to retain the fill, provide the surface for mounting a timber fender system and mooring cleats for tying up small vessels. The seawall has an existing slip, which was previously used for berthing railroad barges to transfer railroad cars from shore to barge and barge to shore. The major components making up the new seawall (approximately 1464 feet) portion consist of the following: Steel sheet piling for bulkhead construction. Precast prestressed concrete piles for seawall support at most areas. Concrete filled steel pipe piles placed inside auger drilled casings for use at and around the existing metro tunnels. Precast prestressed concrete used as permanent formwork and part of the composite concrete deck structure. Cast-in-place concrete pile caps, facing wall and cast-in- place deck over precast planks. Timber fender system. Cleats and bollards for vessel morring. The project includes during Stage 1, the removal and disposal of contaminated soil at the SEFC, Block SF (next to seawall) and includes, dewatering and backfilling excavated areas with clean fill. The contaminates consist of lead (2630 PPM at 1.0 feet to 9.0 feet) copper (8460 PPM at 3.0 feet to 5.0 feet), and Bis (2-Chloroisopropyl) Ether (0.27PPMat 7.0 feet to 9.0 feet). You may contact GSA, NCR, WPMODB, Bid Activity, 7th and D Streets, SW, Room 1065, Washington, DC 20407 to obtain copies of the solicitation. Telephone (202) 708-9903 (0120)

Loren Data Corp. http://www.ld.com (SYN# 0155 19980504\Z-0036.SOL)