Shelldrake Dam
Shelldrake Dam is an earth dam located in Chippewa County, Michigan, built in 1964. It carries a Low hazard potential classification and has a fair condition assessment.
About Shelldrake Dam
The primary purpose of Shelldrake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mdnr Fisheries (state). It impounds the Betsy River near Shelldrake.
The dam stands 13 feet tall and stretches 800 feet across, creates a reservoir covering 160 acres, has a maximum storage capacity of 1,168 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.
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 08/09/2018.
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Location
| State | Michigan |
| County | Chippewa |
| Nearest City | Shelldrake |
| River/Stream | Betsy River |
| Coordinates | 46.71111, -85.06556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 800 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 1,168 acre-ft |
| Max Storage | 1,168 acre-ft |
| Normal Storage | 448 acre-ft |
| Surface Area | 160 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 1,290 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MDNR Fisheries |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/09/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00252 |
| Federal ID | MI00252 |
| More Info | State Dam Safety Program |