Michigan Floods Expose Aging Dams, Prompt Removal Push
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- Cheboygan Dam came within 5 inches of overflow on April 16 as snowmelt and heavy rain raised rivers to near‑record levels in northern Michigan.
- Michigan’s dam fleet has over 50 % of structures past their 50‑year design life, and the nation’s 92,000 dams include 18 % high‑hazard units whose repair would cost >$165 billion nationwide (≈$1 billion for Michigan).
- Bob Stuber of the Michigan Hydro Relicensing Commission called the April flooding a “wake‑up call” and urged upgrades where possible and removal where it makes sense.
- Traverse City removed the Union Street Dam in 2024, a move that engineers say helped keep upstream water levels lower during the recent near‑500‑year flood.
- Richard Rood warned that such flood events will become “typical of the future” as climate change intensifies storms.
Why it matters: Failure of high‑hazard dams would cause loss of life, while the $1 billion repair bill strains state budgets and forces communities to choose between costly upgrades or dam removal.
