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Projects - Highland Terrace Outfall Repair
Problem
Collected stormwater runoff was causing severe erosion at the end of a stormwater outfall pipe on Highland Terrace. Erosion undermines the stability of the soil around the outfall pipe and caused stormwater runoff to transport excess sediment to the stream.
Description
A stone splash pad was installed at the end of the outfall pipe to prevent scour. A rock-lined swale with stone check dams were installed to stabilize the soil in the channel and slow the flow of water enough to prevent future erosion. The surrounding area was reshaped, seeded and mulched to prevent further failure of the nearby bank.
Benefit
Sediment loading to Muddy Brook will be reduced. The bank along Highland Terrace has been stabilized. This project will prevent future damage to City stormwater drainage infrastructure and nearby private property.
Dates/Timeline
Summer 2009
Best Management Practices
Stone-lined channel, stone check dam
Total Project Value
~$4,000
Funding Sources
Stormwater Utility Fund
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