Description
The State of Michigan is seeking a qualified contractor to execute a series of structural and environmental upgrades at the Minnawanna Dam within the Metamora‑Hadley Recreation Area. The work includes:
• Installation of a downstream filter system.
• HDPE lining of the primary spillway (low‑level outlet and discharge sections).
• Replacement of the existing trash rack and associated walkway/railing.
• Installation of an optional parapet wall with guardrail (Alternate 1).
• Installation of rip‑rap lining and a new concrete crest walkway for the auxiliary spillway (Alternate 2).
• Comprehensive erosion and sediment control measures, including silt curtains, geotextile filters, and temporary staging/road closures.
• Demolition of existing structures where required and full restoration of disturbed areas with topsoil, seed, and mulch.
The contract will require coordination with the Michigan Department of Natural Resources, DTMB, and compliance with EGLE (Michigan Department of Environment, Great Lakes and Energy) permitting. Shop drawings, sequencing plans, and utility coordination (811 “Miss‑Dig”) are mandatory.