Description
The project involves the rehabilitation of the Winchester Dam in Mecosta County, Michigan. The scope of work includes repairs to the primary spillway, auxiliary spillway, and embankment. The contractor will be responsible for developing and implementing a sequence and schedule for completion of the work in accordance with applicable provisions of the contract documents. The project requires compliance with the rules and regulations of the Michigan Department of Environment, Great Lakes and Energy (EGLE).
Some key features of the project include:
* Replacement of the existing 4" HDPE tile drain with a new one
* Raising the crest of the auxiliary spillway to EL 996.60
* Regrading the upstream riprap slope to a 3:1 slope
* Installation of a new concrete cutoff wall
* Construction of a new auxiliary spillway chute
* Installation of a riprap lined stilling basin at the outlet
* Demolition of the existing toe drain and construction of a new one
* Installation of a geotextile filter fabric and aggregate filter blanket
* Seeding and mulching of the proposed grades
* The project requires the contractor to obtain all necessary permits and approvals from the local governing agency.
The project is expected to be completed within a certain timeframe, but the exact duration is not specified in the document.