Milan Dam

Milan Dam is a gravity dam located in Monroe County, Michigan, built in 1937. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Milan Dam

The primary purpose of Milan 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 Milan (local government). It impounds the Saline River near Milan.

The dam stands 19 feet tall and stretches 900 feet across, creates a reservoir covering 59 acres, has a maximum storage capacity of 850 acre-feet, and collects water from a drainage area of 112 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/07/2019.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMichigan
CountyMonroe
Nearest CityMilan
River/StreamSaline River
Coordinates42.08241, -83.68542

Physical Characteristics

Dam TypeGravity
NID Height19 ft
Dam Height18 ft
Dam Length900 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage850 acre-ft
Max Storage850 acre-ft
Normal Storage380 acre-ft
Surface Area59 acres
Drainage Area112 sq mi
Max Discharge3,400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCity of Milan
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection08/07/2019
Emergency Action PlanYes

Identifiers

NID IDMI00713
Federal IDMI00713
More InfoState Dam Safety Program

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