On May 21, the impaired stormwater culvert on Newton Road between Falls of Neuse Road and Six Forks Road failed after this area received nearly four inches of rain in an hour and a half. This amount of rain was unexpected and unusual especially in that brief timeframe. The rainwater caused more erosion at the entrance of the pipe and overwhelmed the stormwater infrastructure causing a culvert failure, a sink hole in the road, and a water main line to break. Following this rain event, the City will be replacing the double 72-inch diameter pipe that carries water along the East Fork of Mine Creek under Newton Road.
The water main crossing over the stormwater pipe lost support during the storm, which caused the water main break. This caused additional erosion to occur along the stormwater pipe. A gas main also was exposed when both pipes failed. PSNC Energy will be monitoring the gas main as emergency repairs are made.
This project will be done in two phases. The first phase will stabilize the area and temporarily address the water main, gas main, and re-establish stream flows. The second phase will focus on permanently replacing the stormwater culvert and making improvements to the stormwater channel.
$591,500 (for construction)
- Project Lead:
Public Utilities Department , Carolina Civilworks, Inc., HDR Engineering, Inc.