​Barton/Bandemer Park Pedestrian Tunnel Project

The City of Ann Arbor is seeking a design‑build contractor to construct an approximately 800‑ft concrete shared‑use path and a new pedestrian tunnel beneath the Michigan Line railroad, linking Barton Nature Area and Bandemer Park. The work includes extensive excavation, precast concrete box culvert installation, utility relocation, sheet‑pile shoring, erosion control, landscaping, fencing, lighting, and coordination with Amtrak for a 36‑hour train outage. The contract will be awarded in July 2024, with construction to be completed by December 20, 2024. • Major civil works: excavation, dewatering, precast box culvert, modular retaining walls, sheet‑pile shoring, and concrete pavement. • Utility coordination: protection/relocation of gas, water, sewer, fiber‑optic, electric, and railroad utilities; required Amtrak permits and flagging. • Ancillary features: decorative lighting, ornamental fencing, landscaping, turf establishment, and storm‑water/erosion control measures. • Mandatory compliance: prevailing‑wage, living‑wage, conflict‑of‑interest, non‑discrimination declarations, 5 % bid bond, performance and labor‑material bonds, insurance, and certified‑payroll reporting.