SAM #FGWB21000AB_2

Airfield Stormwater System Repair and Maintenance, Phase II – Dobbins ARB, GA

This opportunity involves a major infrastructure project at Dobbins Air Reserve Base, Georgia, focused on repairing and maintaining the airfield stormwater drainage system (Phase II): - Government Buyer: - U.S. Army Corps of Engineers, Louisville District (primary procuring agency) - Department of the Air Force, Air Force Reserve Command, 94th Contracting Flight (project sponsor) - Scope of Work: - Demolition, replacement, and installation of stormwater infrastructure: reinforced concrete flumes, box culverts, storm sewer pipes (RCP, CMP, HDPE), precast drop inlets, and trench drains - Erosion and sediment control: silt fences, sediment traps, check dams, temporary and permanent seeding, dust control, and sodding (Bermuda sod) - Pavement and site restoration: concrete and asphalt paving, pavement markings, expansion joints, and aggregate base courses - Security and site features: installation and repair of high-security chain link fencing (6' and 7' with barbed wire), sign bases, and electrical work - Specialized construction: trenchless utility installation, cured-in-place pipe (CIPP) relining, centrifugally cast concrete pipe lining, flowable fill, and geogrid slope reinforcement - Environmental compliance: strict adherence to Georgia NPDES permit GAR 100001, phased construction (max 5 acres disturbed at a time), and protection of wetlands and impaired streams - Notable Requirements: - All work must meet ASTM, AASHTO, ACI, and Turfgrass Producers International standards - Construction is phased with multiple CLINs and options, covering a 55.34-acre area - Extensive quality control, environmental protection, and airfield security measures are mandated - No specific OEMs or proprietary products are named; materials must meet referenced industry standards - Estimated contract value: $10M–$25M - Period of performance: up to 420 calendar days, with phased activities and options for additional work

Description

While not all inclusive, this project encompasses the work necessary to repair the stormwater drainage systems east of Taxiway 'J' on Dobbins ARB. Areas where the slopes have failed or where they have been disturbed from previous repairs will be regraded and have sod applied to obtain stabilization and positive drainage. Work shall include all maintenance items identified in basin III, IV, and V on the airfield. In addition to the work associated with correcting the grades around the airfield, the cleaning of existing flumes, pipes, and swales is required to reestablish proper drainage patterns. New concrete flumes will be installed at various locations throughout the airfield to reestablish positive drainage and prevent future erosion and standing water.

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