The City of Raleigh and USGS Partner to Install New Stream Gauges Along Walnut Creek to Track Flood Risk

News posted Aug. 16, 2018 - 6:30 pm

The City of Raleigh has installed five new stream gauges to monitor streamflow and rainfall along Walnut Creek. This streamflow and flood monitoring system will help determine flood risk leading up to and during a major rain storm. This initiative was done in partnership with the United States Geological Survey (USGS) to track water levels in flood-prone areas and coordinate road closures and evacuations when necessary.

“Data from the new gauges will inform the need for road closures with the primary goal of keeping residents safe and off flooded roads,” said Scott Bryant, Stormwater Administrator – Planning and Business Operations. “This will better prepare us for impacts to flood-prone areas during heavy rain storms, which is particularly important as we get further into hurricane season.”

These gauges will enhance the system that is in place. There are already nine gauges along Crabtree Creek, Pigeon House Branch Creek, Marsh Creek, Rocky Branch Creek, and Walnut Creek.

The new stream gauges along Walnut Creek are located at:

  • Buck Jones Road near S. Valley Court
  • S. Wilmington Street near Fayetteville Street
  • S. State Street between Peterson Street and Darby Street at the Walnut Creek Greenway Trail
  • Trailwood Drive near Avent Ferry Road

A gauge also is placed near the dam structure at Lake Johnson to monitor lake levels before and during a storm. The water level of each gauge can be viewed in real-time at nc.water.usgs.gov. Residents also can sign up for USGS water alerts to receive updates during a storm.

The City of Raleigh is installing flood warning flashing signs at some locations along Crabtree Creek and Walnut Creek beginning this fall. The signs will warn residents when a road is flooded and unsafe to cross.


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