Flood Inundation Maps to Support Flood Warning for Dardenne Creek

The proposed work will address the lack of flood warning information along Dardenne Creek in St. Charles County, Missouri. Existing USGS stream gage locations at Highway K near O'Fallon, Missouri, and Main Street at Old Town St. Peters, Missouri, can serve as NWS forecast points and developed flood-inundation maps could provide corresponding information on the areas of inundation at various water levels that can be used in providing flood warning, flood prevention and future migration, and rescue efforts. The flood-inundation maps will be tied to real-time data from the USGS stream flow gages, flood forecast information, and delivered to the public via the Internet. The maps will be created by the USGS and will depict the approximate area that would be inundated at selected water levels in increments of 1 to 2 feet referenced to both Dardenne Creek stream gages, ranging from the NWS defined "Action Stage" near the top of the bank to the maximum observed water level at the estimated annual exceedance probability of 0.2 percent (e.g. 500-year flood).


    • English


    • Status: Active
    • Funding: $20000
    • Contract Numbers:


    • Sponsor Organizations:

      Missouri Department of Transportation

      1617 Missouri Boulevard
      P.O. Box 270
      Jefferson City, MO  United States  65102
    • Project Managers:

      Harper, Jennifer

    • Performing Organizations:


      3162 Bozeman Ave.
      Helena, Montana  United States  59601
    • Start Date: 20190501
    • Expected Completion Date: 20200831
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01715950
    • Record Type: Research project
    • Source Agency: Missouri Department of Transportation
    • Contract Numbers: TR201918
    • Files: RIP, STATEDOT
    • Created Date: Sep 10 2019 10:11AM