High-Level Trunkline Capacity Improvements Project

The City of Ann Arbor is seeking a qualified contractor to design‑build and construct a high‑level sanitary‑sewer trunkline upgrade along Washington and First Streets, including associated water‑main, storm‑sewer, roadway, and utility‑relocation work. The contract covers micro‑tunneling of FRP pipe, shaft construction, de‑watering, contaminated‑material removal, traffic‑control, pedestrian detours, instrumentation, and post‑construction monitoring. The project has a tight schedule, mandatory pre‑proposal attendance, and strict liquidated‑damage provisions. • Install ~1,600 ft of 36‑in. FRP sanitary sewer via micro‑tunneling, plus ancillary pipe (30‑in., PVC, storm‑sewer, water‑main). • Construct launch, intermediate, and reception shafts; provide de‑watering, contamination handling, and extensive instrumentation/monitoring. • Perform full roadway reconstruction (pavement removal, base placement, new HMA, curb/gutter, sidewalks, traffic‑control, bollard replacement, and pedestrian detour installations). • Coordinate with multiple city projects, a railroad right‑of‑way, and strict work‑hour/holiday restrictions; deliver within 269 calendar days from Notice to Proceed.