Frankenmuth Dam

Frankenmuth Dam is a timber crib dam located in Saginaw County, Michigan, built in 1848. It carries a Low hazard potential classification and has a fair condition assessment.

About Frankenmuth Dam

The primary purpose of Frankenmuth Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Frankenmuth (local government). It impounds the Cass River near Frankenmuth.

The dam stands 23 feet tall and stretches 235 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 842 square miles. Completed in 1848, the structure is one of the older dams in the region, with over a century and a half of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 10/28/2019.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountySaginaw
Nearest CityFrankenmuth
River/StreamCass River
Coordinates43.32481, -83.74167

Physical Characteristics

Dam TypeTimber Crib
NID Height23 ft
Dam Height13 ft
Dam Length235 ft
Year Completed1848 (178 years old)

Storage & Hydraulics

NID Storage75 acre-ft
Max Storage75 acre-ft
Normal Storage30 acre-ft
Surface Area9 acres
Drainage Area842 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCity of Frankenmuth
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection10/28/2019
Emergency Action PlanNot Required

Identifiers

NID IDMI00361
Federal IDMI00361
More InfoState Dam Safety Program

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