Gwinnett County Bids #BL053-26

Gwinnett County North Chattahoochee Interceptor Improvements Phase 2 Construction

This opportunity involves major sewer infrastructure improvements for Gwinnett County, Georgia: - Government Buyer: - Gwinnett County Department of Water Resources (Board of Commissioners) - Purchasing Associate II: Anna West - Project Scope: - Installation of approximately 6,800 feet of 54-inch diameter ductile iron pipe (DIP) gravity sewer - Installation of 18 precast concrete manholes - Abandonment of existing 30-inch and 36-inch reinforced concrete pipe (RCP) sewer lines and associated manholes - Bypass pumping of existing sewer flows to accommodate installation and tie-ins - Connection to existing sewer infrastructure - Multiple stream crossings - Installation and maintenance of erosion and sediment control measures - Site restoration and clean-up after construction - Preparation of as-built drawings and provision of GIS data for new piping and manholes - Eligibility Requirement: - Only contractors pre-qualified under the county's annual prequalification process for gravity sanitary sewer (Subsection 2, Gravity 12” & up) may bid - Consulting Engineer: - Engineering Strategies, Inc. - Products & Materials: - Ductile iron pipe (DIP), precast concrete manholes, reinforced concrete pipe (RCP) for abandonment - No specific OEMs or part numbers are named; standard industry materials are required - Notable Requirements: - Multiple stream crossings and significant bypass pumping - Detailed as-built documentation with GIS data - Place of Performance: - Gwinnett Justice and Administration Center, Lawrenceville, GA - Work overseen by the Department of Water Resources

Description

Gwinnett County is soliciting bids for the construction of the North Chattahoochee Interceptor Improvements Phase 2 project. The work includes installation of approximately 6,800 feet of 54-inch diameter ductile iron pipe gravity sewer, 18 precast concrete manholes, abandonment of existing sewer lines, bypass pumping, multiple stream crossings, erosion control, site restoration, and preparation of as-built drawings with GIS data. The project must be substantially complete within 390 days and final payment eligible 30 days after substantial completion. Bidders must be pre-qualified under the county's annual prequalification process for gravity sanitary sewer contractors.

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