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Posted on: September 11, 2019

High School Drive Closure and Sinkhole Area Repair Schedule

Street Closure

A sinkhole formed in the roadway near the storm sewer inlet on the west side of High School Drive just south of Wrenwood Lane. Brentwood Public Works staff placed traffic control devices around the sinkhole area to prevent motor vehicle damage. The City of Brentwood hired Kozeny Wagner, Incorporated (KWI) as the general contractor to perform the needed repairs to the top section of the box culvert that passes below High School Drive, which was the source of the sinkhole formation.

KWI will complete repairs of the box culvert and restore the roadway to normal conditions. These tasks and the timeline are dependent on weather conditions:

  • Complete roadway closure of High School Drive south of Wrenwood Lane – KWI will install traffic control devices/barricades around September 16, 2019 to prevent travel over the box culvert during demolition activities. The High School Drive roadway will remain closed in both directions to all traffic until all repairs and tests are completed.
  • Following demolition services, KWI will complete the new top section slab. The concrete pour will be completed around September 24-30, 2019.
  • The new concrete must cure in place for approximately 7 days, followed by materials testing to ensure concrete strength is met. Test results should be ready around October 4, 2019.
  • If concrete strength meets specifications, then the roadway restoration process can begin around October 9, 2019.
  • If the roadway restoration work is completed on schedule, then the traffic control devices/barricades can be removed to reopen the roadway around October 15, 2019.

We apologize for the roadway inconvenience and thank you for your patience while the necessary repairs are completed. Please direct questions to Public Works staff, 314.963.8642 (Monday-Friday, 7:00 am through 3:30 pm).

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