Rose Valley Lake dam
Rose Valley Lake
Rose Valley Lake, located in Gamble Township, Lycoming County, Pennsylvania, is a state-owned reservoir with a primary purpose of recreation. The dam, completed in 1972, is an earth structure with a height of 26 feet and a length of 516 feet, creating a storage capacity of 6,500 acre-feet. The lake covers a surface area of 389 acres and drains a watershed area of 3.4 square miles, with Mill Creek serving as the main tributary.
Despite its relatively small size, Rose Valley Lake has a high hazard potential and is classified as being in fair condition. The Pennsylvania Department of Environmental Protection regulates the dam, conducting regular inspections to ensure its safety and functionality. The last inspection took place in May 2020, with a scheduled frequency of once per year. In 2005, structural modifications were made to enhance the dam's resilience and stability, aligning with the state's commitment to maintaining water resources in a changing climate.
Enthusiasts of water resources and climate sustainability will appreciate Rose Valley Lake for its recreational value and ecological significance in the region. As a vital reservoir in the Buffalo District, the dam contributes to flood control and water supply management while providing opportunities for outdoor activities such as fishing, boating, and hiking. With ongoing risk assessments and management measures, the lake serves as a model for responsible stewardship of water resources in the face of evolving environmental challenges.
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 Rose Valley Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lycoming Creek Near Trout Run | 150 cfs | → |
| Loyalsock Creek At Loyalsockville | 424 cfs | → |
| Wb Susquehanna River At Williamsport | 5,870 cfs | → |
| Blockhouse Creek Near English Center | 29 cfs | → |
| Wb Susquehanna River At Jersey Shore | 5,490 cfs | → |
| Pine Creek Bl L Pine Creek Near Waterville | 925 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rose Valley Lake.
Boat launches
Campgrounds
- Camp Susque
- Bonnell Flats
- Little Pine State Park
- Twin Streams Campground
- Group Tenting Area No. 2
- Group Tenting Area No. 3
Track Rose Valley Lake 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 Rose Valley Lake
Where does the data for Rose Valley Lake 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 Rose Valley Lake.