Grass Lake Level Control Structure
Grass Lake Level Control Structure is an earth dam located in Kent County, Michigan, built in 1973. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Grass Lake Level Control Structure
The primary purpose of Grass 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 Kent County Drain Commissioner (private). It impounds the Barkley Creek near Belmont.
The dam stands 29 feet tall and stretches 1,900 feet across, creates a reservoir covering 240 acres, has a maximum storage capacity of 5,917 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.
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 08/18/2020.
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Location
| State | Michigan |
| County | Kent |
| Nearest City | Belmont |
| River/Stream | Barkley Creek |
| Coordinates | 43.08833, -85.52167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 1,900 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 5,917 acre-ft |
| Max Storage | 5,917 acre-ft |
| Normal Storage | 1,800 acre-ft |
| Surface Area | 240 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 175 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Kent County Drain Commissioner |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/18/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00453 |
| Federal ID | MI00453 |
| More Info | State Dam Safety Program |