Listed Floodplain engineering (PE / CFM certification) Collinsville, IL · Mississippi & Missouri River Valleys

Oates Associates, Inc.

Named Flood Insurance Rate Map review firm on the Metro East levee accreditation programme, and author of a flooding report referenced in a village stormwater annual report.

Who runs it

  • Jeff Rensing PE, SE - Chief Executive Officer

Credentials & verification

Years in business
Founded circa 1980

Services

  • flood insurance rate map review
  • stormwater engineering
  • civil structural engineering

Service area

Collinsville IL · Madison County IL · St. Clair County IL · Metro East Illinois · Greater St. Louis

Our verification notes

The weakest of the Metro East entries and listed as a secondary option. No CFM was found for anyone at the firm in the Illinois floodplain association directory, and no named individual engineer is tied to a specific flood project - only the firm name. Contact details are deliberately empty because nothing was verifiable outside lead-generation aggregators, which we do not use.

Sources checked

  • https://www.floodpreventiondistrict.org/project-team/
  • https://roxana-il.org/wp-content/uploads/2023/03/Village-of-Roxana-MS4-Annual-Report_2017-2018.pdf

Last verified 2026-08-13. This is an independent listing, not an endorsement, and we are not affiliated with Oates Associates, Inc.. Confirm the current license, insurance and references directly before signing any contract.

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