Willows Biobasin Repair

This City of Madison public‑works contract funds the repair and upgrade of the Willows Biobasin as part of the West Badger Mill Greenway Improvements. The work primarily involves storm‑water infrastructure construction, including installation of reinforced‑concrete pipe and apron endwalls, a 4 × 4 ft catch basin with a 3‑ft sump, excavation, grading, asphalt pavement replacement, and extensive erosion‑control measures (rip‑rap, filter fabric, matting, topsoil and seeding). The contract also mandates utility coordination, dewatering, site surveying, and post‑construction maintenance. Key points: • Scope covers storm‑water channel, pipe, and basin installation plus associated civil works. • Total contract value $129,577.76; single‑vendor award to Drax, Inc. • Project schedule: start late October 2026, complete site work by November 2026, final asphalt and seeding by May 2027.