Little John Flooding Dam
Little John Flooding Dam is an earth dam located in Mecosta County, Michigan, built in 1957. It carries a Low hazard potential classification and has a fair condition assessment.
About Little John Flooding Dam
The primary purpose of Little John Flooding Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mdnr Wildlife (state). It impounds the Tributary To Ryan Creek near Rodgers Heights.
The dam stands 20 feet tall and stretches 160 feet across, creates a reservoir covering 65 acres, has a maximum storage capacity of 1,200 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1957, 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 05/26/2016.
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Location
| State | Michigan |
| County | Mecosta |
| Nearest City | Rodgers Heights |
| River/Stream | Tributary To Ryan Creek |
| Coordinates | 43.73667, -85.40333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 160 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
| Normal Storage | 250 acre-ft |
| Surface Area | 65 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 65 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MDNR Wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/26/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00305 |
| Federal ID | MI00305 |
| More Info | State Dam Safety Program |