W9127N26BA005 Cottonwood Pile Dike Repairs_Planset.pdf

This is a planset document for the Cottonwood Pile Dike Repairs project located between River Mile 68 and River Mile 72 on the Lower Columbia River in Cowlitz County, Washington. The planset provides technical drawings and specifications for the repair work being solicited under Invitation for Bid (IFB) W9127N26BA005, issued by the Department of the Army Corps of Engineers Portland District.

The project encompasses focused, cost-effective repairs to select sections of pile dikes that have experienced significant loss of structural integrity, along with enrockment repair and enhancement work at ten pile dike locations. The scope includes shore connection and offset pile dike installation at five of these structures in areas showing visual evidence of shoreline erosion. Work activities involve removal of interfering debris from rock placement areas prior to stone placement, with all debris disposed of at approved upland facilities. Debris removal quantities will be determined based on pre-construction high-resolution multi-beam bathymetric survey data. This is a Total Small Business Set-Aside with a NAICS code of 237990 (Other Heavy and Civil Engineering Construction) and a size standard of $45.0 million. Award will be made to the lowest priced, responsible, and responsive offeror on a single fixed-price contract basis. The NEPA process, including the signed Finding of No Significant Impact (FONSI), is anticipated to be completed by the end of May 2026, with contract award contingent upon NEPA completion.