Sand Lake Level Control Structure is an earth dam located in St. Joseph County, Michigan, built in 1970. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 7 ft7 ft tall and 25 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sand Lake Level Control Structure
The primary purpose of Sand Lake Level Control Structure is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Saint Joseph County Dc (private). It impounds the Trib to Prairie River near Centreville.
The dam stands 7 feet tall and stretches 25 feet across, creates a reservoir covering 95 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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 04/30/2018.
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Location
| State | Michigan |
| County | St. Joseph |
| Nearest City | Centreville |
| River/Stream | Trib to Prairie River |
| Coordinates | 41.91000, -85.45556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 25 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 95 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Saint Joseph County Dc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/30/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00950 |
| Federal ID | MI00950 |
| More Info | State Dam Safety Program |