Rainfall poses threat to St. Francois County dam - KMOV.com

Rainfall poses threat to St. Francois County dam

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By KMOV Web Producer By KMOV Web Producer
By KMOV Web Producer By KMOV Web Producer
By KMOV Web Producer By KMOV Web Producer
By KMOV Web Producer By KMOV Web Producer
By KMOV Web Producer By KMOV Web Producer

BISMARCK, Mo. (KMOV) – Continuous rainfall has put a strain on a dam on the Iron Mountain Lake Dam, where about two dozen homes lie in its path.

Because Iron Mountain Lake is too small to have its own department, Bismarck firefighters are keeping a close eye on the dam. They called in the chief engineer for Missouri Dam and Reservoir Safety, who says there’s reason for concern, but he’s not calling for an evacuation yet.

However, as of 10 p.m. on Monday, the road at the base of the spillway was underwater and closed as a result.

The real concern at the Iron Mountain Lake Dam is not the water pouring over the spillway, but rather the seepage at the base. The chief engineer told firefighters that if the water seeping out is clear, there’s no need to worry. But if there is silt in the seepage, that means the dam is eroding.

This has nearby residents worried.

Bismarck firefighters have notified residents of the potential for an evacuation. They’re hoping area farmland will take the brunt, and that homeowners will only have to deal with flooding, not washing away.

The Iron Mountain Lake Dam is the oldest in Missouri.

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