The city of Raleigh Public Utilities Department will test 18 flood warning sirens the week of Sept. 12-16.
The sirens are along Swift Creek below the Lake Wheeler and Lake Benson dams and along Walnut Creek below the Lake Johnson and Lake Raleigh dams.
The city installed the flood warning system in the mid-1980s. The system is normally operated only when very heavy and rare rain could endanger the dams.
The audible testing is the final portion of the rehabilitation project involving the sirens and controls. Testing of the sirens will not be conducted if there is rain or other severe weather in the area during the test period.