Manhole and Headwall Construction

The contract requires the fabrication and installation of precast or cast-in-place manholes and headwalls that must be properly aligned, sealed, and fully integrated into an existing storm pipe system. Work must ensure structural integrity and watertight connections to prevent infiltration or exfiltration, with all components meeting engineering specifications for durability and long-term performance under environmental and hydraulic loads. The scope demands precision in site preparation, material quality control, and seamless coordination with adjacent infrastructure to maintain system efficiency and compliance with municipal stormwater standards. The procurement is classified as a subcontract under NAICS code 238990 and is issued by the Engineering Department of the Port of Portland in Oregon. Proposals are due by August 27, 2026, at 9:00 PM Pacific Time, and the project will be executed at an undisclosed location within the agency’s jurisdiction. The contracting entity is focused on securing qualified subcontractors capable of delivering high-quality, code-compliant stormwater infrastructure with strict adherence to timeline, safety, and performance benchmarks. No set-aside provisions are specified, and the opportunity is open to all eligible bidders seeking to support public utilities construction.