RECOVERY--Y--RECOVERY--PROJECT NUMBER 10286, CHARLEROI GUARD WALLS

The US Army Corps pf Engineers, Pittsburgh District, has a project that involves the construction of the Upper and Lower Guard Walls at Charleroi Locks and Dam, Monongahela River, PA. The major features of the contract are identified below: The 425 foot long lower guard wall consists of drilled shafts, pre-cast shells over the drilled shafts, pre-cast wall panels, a pre-cast cap beam, infill concrete, a sheet pile cut off wall, and four flow diversion cells. There are 13 each 9-6 diameter concrete reinforced drilled shafts that are advanced through approximately 20 feet of river bottom overburden and penetrate approximately 25 feet into bedrock. Each drilled shaft is encased with a reinforced pre-cast concrete enclosure. Pre-cast wall panels are attached to the shaft enclosure to create the lock wall face. A pre-cast cap beam is installed to create the top surface oft the wall; the cap beam is infilled with concrete. At the downstream end of the wall is a nose cell consisting of a steel shell placed over two of the drilled shafts and infilled with concrete. The flow diversion cells are 30 foot diameter gravel filled and concrete capped sheet pile cells that are installed riverward of the nose pier. The 800 foot long upper guard wall consists of 6 concrete piers, and 6 pre-cast box beam sections as well as a nose cell. Each pier consists of a 2 each 66 diameter concrete reinforced drilled shafts and a pre-cast cap beam and a cast in place thrust block. The drilled shafts are advanced through approximately 30 feet of river bottom overburden and penetrate approximately 20 feet into rock. Between each pier, there is a 10 wide by 10 deep by 110 foot long hollow prestressed concrete box beam; there are a total of six box beams included in the contract. Other features of the upper guard wall include a sheet pile cut-off wall and a 50 foot diameter concrete filled nose cell. Concrete for drilled shafts and infill concrete will be Government furnished material. Sheet pile for the cells and the cut-off walls will be Government furnished material. The contract will include minimal electrical work comprised of conduit and pull boxes for each of the guard walls. Contract will include a minimal amount of excavation for the construction of the walls and nose cells. Excavated material will be transported to and disposed of at the Government facility located approximately 7.3 river miles downstream. The magnitude of the project is between $25,000,000 and $100,000,000. This procurement will be advertised on an unrestricted basis. The Invitation for Bid (IFB) will be issued approximately June 8, 2009 on-line only through the Federal Business Opportunities website; therefore, requests for hardcopies of the specifications and drawings will not be honored. Requests must be made by registering for this solicitation at http://www.fedbizopps.gov. Once registered, vendors, plan rooms and printing companies will be able to download the solicitation and drawings on or after the above issuance date. For additional contracting opportunities go to the Army Single Face to Industry website at https://acquisition.army.mil/asfi/, click on Contracting Opportunities and follow the directions or go to http://www.fedbizopps.gov, click on Go Find Business Opportunities and follow the directions.