Conneaut Marsh dam
Conneaut Marsh
Conneaut Marsh, located in Crawford County, Pennsylvania, is a state-regulated water resource managed by the Pennsylvania Department of Environmental Protection. This recreational dam, completed in 1955, stands at a height of 8 feet and has a storage capacity of 2700 acre-feet. The dam spans 60 feet across Conneaut Creek, providing a surface area of 500 acres for outdoor enthusiasts to enjoy.
Despite its low hazard potential, Conneaut Marsh has not been rated for its condition assessment as of the last inspection in May 2016. The dam serves primarily for recreational purposes and is constructed of concrete with a buttress core design. Its location in Vernon Township offers a peaceful retreat for visitors seeking to explore the natural beauty of the region and engage in outdoor activities such as fishing, boating, and wildlife observation. As a vital water resource in the area, Conneaut Marsh plays a significant role in supporting the local ecosystem and providing a sanctuary for diverse flora and fauna.
With its picturesque setting and strategic location along Conneaut Creek, Conneaut Marsh is a noteworthy destination for water resource and climate enthusiasts. As a state-regulated dam, it ensures the safety and maintenance of the surrounding environment while offering recreational opportunities for the community. Whether for leisurely outings or environmental exploration, this serene marshland serves as a valuable asset for both residents and visitors to appreciate and protect for future generations.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Conneaut Marsh -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| French Creek At Meadville | 3,460 cfs | → |
| Woodcock Creek At Woodcock Creek Dam | 68 cfs | → |
| Woodcock Creek At Blooming Valley | 59 cfs | → |
| Little Shenango River At Greenville | 223 cfs | → |
| Shenango River At Pymatuning Dam | 201 cfs | → |
| French Creek At Utica | 3,880 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Conneaut Marsh.
Track Conneaut Marsh in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Conneaut Marsh
Where does the data for Conneaut Marsh come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Conneaut Marsh.