HomeMy WebLinkAboutStormwater ImprovementsProject PA#3: Main Street/Twin Ditch Stormwater Improvements
Description:
The City of Sebastian presently utilizes a "Twin Ditch" located on City right-of-way
between the City of Sebastian Airport property and residential property to the south of the
double ditch along Main Street as a main collector and conveyance system for the
stormwater run-off accumulated from the local road and residential properties. This
collector channel is a direct contributor of stonnwater run-off to the Sebastian River, a
tributary to the Indian River Lagoon National Estuary.
The conceptual design for the "Twin Ditch" project is to remove the bene between the
two ditches, maximize the width of and deepen the channel to create a best management
practice wet detention pond to increase sedimentation of total suspended solids and
increase the total nitrogen and total phosphorus removal. A control structure at the
western end of the detention pond will be constructed to effectively to control the
discharge of freshwater to the Sebastian River subsequent to a stormwater event.
The current conceptual budget estimate for this project is $699,000, including design and
construction. This number may change based on final design specifications and market
conditions.
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Main Street/Twin Ditch Stormwater Improvements