Title
A RESOLUTION AUTHORIZING THE CITY MANAGER TO ADVERTISE FOR BIDS AND TO ENTER INTO A CONTRACT FOR THE WILLOW LAKE DRAINAGE IMPROVEMENT PROJECT WITH THE LOWEST AND BEST BIDDER; AND DECLARING AND EMERGENCY.
Brief Description: This project involves a short-term solution that involves the removal of tall vegetation, regrading of the existing ditch from Eastham Way towards the Norfolk Southern Railroad tracks to alleviate or eliminate flooding within the drainage ditch at a cost of $100,000, which includes a 10% contingency.
Body
Legislative History
None.
Purpose & Explanation
In late 2022, the City commenced with a storm water hydraulic study of a drainage ditch downstream of properties off Eastham Way and behind properties of the cul-de-sacs of Willow Lake Drive and Chatham Way. The drainage ditch was constructed in the 1970's with the creation of the Plymouth Village subdivision. The ditch is fed by a 36-inch storm pipe from Eastham Way, through private properties and to a 24-inch pipe under Norfolk Southern's railroad tracks. The drainage ditch has a very flat slope and is prone to blockages, sediment buildup and flooding of its banks. See Study Area Map attached.
The on-going hydraulic study is evaluating multiple solutions to alleviate or eliminate flooding of the drainage ditch. Solutions being evaluated include regrading of the existing ditch, storm water detention and re-routing of flows to an alternate location. The study is nearly complete and the recommended improvements to address the flooding along the ditch corridor include a short-term solution that includes removal of tall vegetation and re-grading of the existing ditch and a long-term solution of re-routing of the drainage flows entering the ditch from Eastham Way to the City's Colony Park.
The cost of the long-term solution, re-routing of flows from Eastham Way to Colony Park and introducing additional storm water storage is still being evaluated and is currently estimated at over ...
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