Large-Diameter Stormwater Pipe Installation

The contract entails the installation of large-diameter stormwater piping, requiring comprehensive earthwork activities including trenching, bedding, jointing, backfilling, and the implementation of temporary dewatering or shoring systems where site conditions necessitate. The work must be executed in accordance with engineering standards to ensure structural integrity and long-term functionality of the stormwater conveyance system. All materials and methods must comply with applicable codes and site-specific requirements to prevent erosion, settlement, or failure of the installed infrastructure. This subcontract is issued by the Engineering Department of the Port of Portland under NAICS code 238990, with a response deadline of August 27, 2026. The project is located in Oregon, though exact geographic details are unspecified. Bidders are expected to have the technical expertise, equipment, and labor resources to manage complex underground installation tasks in potentially challenging environmental conditions. No set-aside provisions are indicated, and all interested parties must submit proposals through the designated vendor portal prior to the deadline.