Mosquito Creek Dam
Mosquito Creek Dam is an earth dam located in Trumbull County, Ohio, built in 1944. It carries a High hazard potential classification.
About Mosquito Creek Dam
The primary purpose of Mosquito Creek Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Usace - Pittsburgh District (federal). It impounds the Mosquito Creek near Warren.
The dam stands 47 feet tall and stretches 5,650 feet across, creates a reservoir covering 7,850 acres, has a maximum storage capacity of 180,000 acre-feet, and collects water from a drainage area of 97 square miles. Completed in 1944, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 05/07/2021.
At 47 feet, this dam is taller than 92% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Ohio dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Ohio |
| County | Trumbull |
| Nearest City | Warren |
| River/Stream | Mosquito Creek |
| Coordinates | 41.30000, -80.75833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Length | 5,650 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 180,000 acre-ft |
| Max Storage | 180,000 acre-ft |
| Normal Storage | 82,400 acre-ft |
| Surface Area | 7,850 acres |
| Drainage Area | 97 sq mi |
| Max Discharge | 4,180 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USACE - Pittsburgh District |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 05/07/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00031 |
| Federal ID | OH00031 |
| More Info | State Dam Safety Program |