Marshfield Lake Dam
Marshfield Lake Dam is an earth dam located in Cuyahoga County, Ohio, built in 1940. It carries a Significant hazard potential classification and has a poor condition assessment.
About Marshfield Lake Dam
The primary purpose of Marshfield Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Water's Edge Condominium Owners Assoc. (private). It impounds the Porter Creek near Westlake.
The dam stands 15 feet tall and stretches 220 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1940, the structure is well-established, with more than 75 years of service.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/29/2023.
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Location
| State | Ohio |
| County | Cuyahoga |
| Nearest City | Westlake |
| River/Stream | Porter Creek |
| Coordinates | 41.45722, -81.96833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 220 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 82 acre-ft |
| Max Storage | 82 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 390 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Water's Edge Condominium Owners Assoc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 11/29/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH01488 |
| Federal ID | OH01488 |
| More Info | State Dam Safety Program |