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Substation Flood Proofing

As part of a utility company’s resiliency initiative to improve power supply reliability, we designed flood proofing modifications for various at-risk substations located within the floodway/floodplain associated with different flooding sources and waterways. To minimize subsurface utility conflicts, the design at some substation flood walls included a precast concrete block wall system wrapped with an impermeable ethylene propylene diene monomer liner. Other design aspects included ingress/egress openings equipped with a removable flood plank system and a pump station to handle interior drainage. Our flood proofing improvements were fast tracked and involved extensive coordination and permitting with DuPage County, the Metropolitan Water Reclamation District of Greater Chicago, and the Illinois Department of Natural Resources Office of Water Resources.

Owner

Utility Company

Market Sector

Power & Energy

Primary Service Lines

Resilient Water Solutions

Region

Chicago
Additional Info

Project Highlights:

  • Planned wall height considered both regulatory and best available data flood elevation information and was designed to protect the substation to an elevation of more than one foot above the flood insurance study’s 500-year flood elevation.
  • We have performed flood proofing feasibility and design services at the following substations:
    • TDC555 Glen Ellyn
    • TSS121 Freeport
    • TSS192 Ridgeland
    • TDC414 Roberts Road
    • TDC557 Butterfield
    • TSS69 North Chicago
    • DCS66 Pontiac
    • TSS46 Des Plaines
    • TSS107 Dixon
    • TDC566 Oak Brook
    • TDC580 Downers Grove
    • TSS64 Bellwood
    • TSS153 Taylor Street

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