PHNSY - WR152787 RM21-1777 DD1 Sewage Piping Replacement, JBPHH

Provide planning, design, and engineering services to accomplish the following work: Replace DD1 sewer line and scuppers from the dock basin to DD1 pumpwell. For portions of the sewer main connected to scuppers below the dock floor, relining may be an alternative if deemed feasible. For all portions of sewer line within DD1 suction chamber, replace piping. Replace all scuppers and pedestals to match existing for historical purposes. Replace first isolation valve (sewer inlet valve) connected to the dock sewer line located within DD1 pumpwell. Replace sewer discharge connection at the mezzanine level of DD1 pumpwell. Replace sewage vent piping in pumpwell. The flanged connection piping stub into the concrete wall is corroded.