Conneaut Marsh is a concrete dam located in Crawford County, Pennsylvania, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall and 60 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Conneaut Marsh
The primary purpose of Conneaut Marsh is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Pa Game Commission (state). It impounds the Conneaut Creek.
The dam stands 8 feet tall and stretches 60 feet across, creates a reservoir covering 500 acres, has a maximum storage capacity of 2,700 acre-feet, and collects water from a drainage area of 68 square miles. Completed in 1955, 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. The most recent inspection on record was 05/26/2016. That was over 10 years ago.
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Location
| State | Pennsylvania |
| County | Crawford |
| River/Stream | Conneaut Creek |
| Coordinates | 41.57472, -80.21889 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 60 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 2,700 acre-ft |
| Max Storage | 2,700 acre-ft |
| Normal Storage | 2,700 acre-ft |
| Surface Area | 500 acres |
| Drainage Area | 68 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Pa Game Commission |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/26/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | PA00178 |
| Federal ID | PA00178 |
| More Info | State Dam Safety Program |