Raleigh begins 15,900-foot Mine Creek Outfall sewer replacement project
Raleigh Water has begun a $30 million upgrade of the Mine Creek Outfall Gravity Sewer to increase system capacity and reduce the risk of overflows during severe storm events. The project will replace or reline approximately 15,900 linear feet of gravity sewer, improving resilience against heavy rainfall that increases stormwater inflow.
Work will extend from Crabtree Creek near I-440 along both sides of Shelley Lake to North Hills Drive, requiring several road crossings at West Millbrook Road and Shelley Road. Engineering firm Brown and Caldwell is leading the design and construction effort.
City officials said the existing line’s limited capacity has previously caused backups during high-rainfall events, prompting verification through hydraulic modeling that overflows could occur without intervention. The completed improvements will enhance service reliability, safeguard nearby waterways, and prepare Raleigh’s sewer infrastructure for future growth and climate-related challenges.
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