The fix for a flooded roadway.

Project Highlights

Extreme flooding caused by rising water levels during typical high tides, king tides, and other storm event conditions began to impact or cut off access to 388 homes on Dyer Point Road. Existing drainage system pipes couldn’t handle the higher volumes of rainwater, especially when water levels rose to the point where water actually flowed backwards through the drainage pipes and onto the road. Instead of making the water drain faster, the pipes were increasing flooding in the area during high tide. 

While raising the roadway was an obvious consideration, the comparatively low elevation of adjacent properties, which could experience increased flooding under this option, excluded that as a potential fix. Engineers determined that elevating a strategic 350-foot-long stretch of sidewalk and the installation of three storm pipe check valves would greatly improve the situation.

A 350-foot-long stretch of sidewalk, a distance equal to the wingspan of a 747, was elevated on Dyer Point Road to fight flooding.

Check valves eliminated flooding caused by water backing up into drainage pipes and onto roadways during high tide events.