Acme (Pa-657) dam
Acme (Pa-657)
Acme (Pa-657) is a local government-owned dam located in Mount Pleasant Township, Pennsylvania, along Jacobs Creek. Built in 1975 by USDA NRCS, this earth dam stands at a height of 33 feet and stretches 500 feet in length. Its primary purpose is for recreation, with additional functions including flood risk reduction. The dam has a normal storage capacity of 93 acre-feet and a maximum storage capacity of 1540 acre-feet, serving a drainage area of 2.6 square miles.
Managed by the Pennsylvania Department of Environmental Protection, Acme (Pa-657) is regulated, inspected, and enforced by state authorities. Its condition is assessed as satisfactory, but it poses a high hazard potential. While it has not been modified in recent years, it undergoes regular inspections, with the last one conducted in August 2019. Despite the lack of a formal emergency action plan, the dam meets regulatory guidelines and contributes to overall risk management measures in the area.
Acme (Pa-657) provides a vital recreational resource for the local community while also serving as a key infrastructure for flood risk reduction. With its historical significance and ongoing state oversight, this dam remains a crucial element in water resource management within Westmoreland County, Pennsylvania. Its structural integrity and operational functionality underscore the importance of continued monitoring and maintenance to ensure the safety and sustainability of the surrounding environment.
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 Acme (Pa-657) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Linn Run At Linn Run State Park Near Rector | 9 cfs | → |
| Youghiogheny River At Connellsville | 943 cfs | → |
| Loyalhanna Creek At Kingston | 115 cfs | → |
| Youghiogheny River At Ohiopyle | 726 cfs | → |
| Youghiogheny River Below Confluence | 761 cfs | → |
| Redstone Creek At Waltersburg | 35 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Acme (Pa-657).
Boat launches
- Acme Dam
- Lake Donegal #2 - Lake Under Drawdown
- Lake Donegal #1 - Lake Under Drawdown
- Double Bridge Road Mount Pleasant Township
- Jacobs Creek Park
- Connellsville
Campgrounds
- Kooser State Park
- Laurel Hill State Park
- Camp Ligonier
- Kentuck Campground
- Kentuck - Ohiopyle State Park
- Keystone State Park
Fishing spots
- Bruceton Mills Public Fishing Area
- Frostburg Reservoir
- Sand Spring Run
- Deep Creek Lake
- Jennings Run
- Georges Creek
Track Acme (Pa-657) 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 Acme (Pa-657)
Where does the data for Acme (Pa-657) 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 High 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 Acme (Pa-657).