MECO Heneghan, Inc. (formerly Heneghan and Associates)
The closest floodplain-capable engineering firm to Grafton and the lower Illinois River valley, with a named Illinois CFM on staff and levee-district pump station work at Nutwood.
Who runs it
- Tyler Meyer ✓ CFM - listed with this employer in the IAFSM certified floodplain manager directory
- Adam Lott ✓ PE - named on a state DOT consultant record
Credentials & verification
- CFM (Certified Floodplain Manager)
- One CFM verified by name via the Illinois floodplain association directory
- Years in business
- Founded 1986
Services
Service area
Jerseyville IL · Jersey County IL · Greene County IL · Grafton IL · Alton IL · Godfrey IL
Our verification notes
Corporate change: the merger with MECO Engineering completed on 31 December 2025 and the combined firm operates as MECO Heneghan. Listed under the new name with the former name kept as an alias, since the old name is what appears in older records. Tier 2 rather than 1 because the strongest project record sits on the firm's own site - the independent sources establish the firm and its credentials, not that specific project.
Sources checked
- https://www.illinoisfloods.org/about/floodplain-manager-certification/online-CFM-directory?page=6
- https://www.modot.org/sites/default/files/documents/Heneghan%20Associates%20CI.pdf
- https://www.thetelegraph.com/news/article/heneghan-associates-meco-engineering-co-merge-21335546.php
- https://muddyrivernews.com/communities/missouri/meco-engineering-company-inc-and-heneghan-and-associates-inc-announce-strategic-merger/20260116070600/
Last verified 2026-08-13. This is an independent listing, not an endorsement, and we are not affiliated with MECO Heneghan, Inc. (formerly Heneghan and Associates). Confirm the current license, insurance and references directly before signing any contract.
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