Iroquois Lake Dam
Iroquois Lake Dam is an earth dam located in Cuyahoga County, Ohio, built in 1960. It carries a Significant hazard potential classification and has a fair condition assessment.
About Iroquois Lake Dam
The primary purpose of Iroquois Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Burton Trail, Llc (private). It impounds the Unnamed Tributary To The Chagrin River near Gates Mills.
The dam stands 9 feet tall and stretches 820 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, 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 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 03/29/2023.
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Location
| State | Ohio |
| County | Cuyahoga |
| Nearest City | Gates Mills |
| River/Stream | Unnamed Tributary To The Chagrin River |
| Coordinates | 41.50167, -81.40000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 820 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 58 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Burton Trail, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 03/29/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH01491 |
| Federal ID | OH01491 |
| More Info | State Dam Safety Program |