ASR Phase 3 Recharge Basins

The City of Wichita, Kansas Public Works & Utilities Department is requesting bids on construction services for the ASR Phase 3 Recharge Basins project under IFB 260221, with bids due September 4, 2026 at 10:00 a.m. The project is federally funded and subject to Davis-Bacon wage rates and Buy America preferences for infrastructure, with allowances for non-American sourced materials up to 5 percent of applicable project costs under Department of Interior de Minimus Waiver provisions.

The scope comprises construction of two recharge basins (M09 and M15) with detailed specifications for concrete headwall construction, reinforcing steel placement, slope protection, utility connections, valve assemblies, monitoring wells, and site restoration. M09 involves 63,038 cubic yards of unclassified excavation and 1,955 square yards of channel lining; M15 involves 71,144 cubic yards of unclassified excavation and 6,234 square yards of geoweb slope protection. Concrete compressive strength requirements are 4,000 psi minimum at 28 days per ACI standards. The bid uses a combination of lump-sum items (site clearing, mobilization, seeding) and measured-quantity line items.

Addendum 1 (issued September 2) revised geoweb quantities and clarified that wells will be fully developed prior to construction, PLC programming and SCADA integration will be completed under separate contracts, and asbestos surveys are the contractor's responsibility. The addendum specifies valve manufacturers (Singer S106 flow control valves; Apollo, Watts, or Merit ball valves). Addendum 2 (issued September 3) permits substitution of alternative thin brick manufacturers (Endicott or Metrobrick) for Glen-Gery and clarifies piping connection requirements at both sites, including existing waterline shut-downs with butterfly valves and specific pipe materials for tapping operations.

Prevailing wage rates under KS20260162 apply, with skilled trades ranging from Electricians at $40.64 per hour plus $18.29 fringe to Linemen at $53.68 plus $26.44 fringe. Bidders must electronically submit through the City's Procurement Portal or email to Val Falo at VFalo@wichita.gov and acknowledge receipt of both addenda with their proposals.