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Lake St. Helen
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| Dam Name: | Lake St Helen Lake Level Control |
| Other Name: | CARTER DAM |
| State/Federal ID: | 1810 |
| NID ID: | MI01810 |
| Longitude: | -84.46 |
| Latitude: | 44.40 |
| Map Section: | 8 23N 01W |
| County: | Roscommon |
| River: | S BR AU SABLE RIVER |
| State: | MI |
| Nearest City: | GEELS |
| Distance: | 4 miles |
| Own_name Name: | ROSCOMMON COUNTY |
| Owner Type: | LOCAL GOVERNMENT |
| Private Dam? | NO |
| Dam Type: | Gravity |
| Purposes: | Recreation |
| Year Completed: | 1930 |
| Dam Length: | 200.00 feet |
| Dam Height: | 8.00 feet |
| Hydraulic Height: | 5 feet |
| Maximum Storage: | 7700 acre-feet |
| Normal Storage: | 3360 acre-feet |
| Surface Area: | 2400 acres |
| Hazard Potential: | LOW |
| Emergency Action Plan? | NOT REQUIRED BY SUBMITTING AGENCY |
| Inspection Date: | 10/4/1997 |
| Inspection Frequency: | 3 |
| State Regulated Dam? | YES |
| State Regulating Agency: | Michigan DEQ |
| Spillway Type: | CONTROLLED |
| Spillway Width: | 40 feet |
| Federal Funding Agency: | |
| Source Agency: |
