Lake Henry dam
Lake Henry
Lake Henry, located in Wayne, Pennsylvania, is a private water resource regulated by the Pennsylvania Department of Environmental Protection. This picturesque lake, built in 1865, serves as a recreational oasis with a surface area of 319 acres and a normal storage capacity of 1766 acre-feet. It is situated in Lake Township, surrounded by the tranquil beauty of TR Jones Creek.
With a dam height of 11 feet and a length of 163 feet, Lake Henry has a hazard potential classified as high, although its current condition assessment is fair. Regular inspections are conducted, with the last inspection taking place in October 2020. While there are no associated structures with the dam, its primary purpose remains focused on recreation. The lake's maximum storage capacity is 2389 acre-feet, providing ample opportunity for outdoor activities and enjoyment for water resource and climate enthusiasts alike.
Despite being privately owned, Lake Henry plays a crucial role in local water management and conservation efforts. Its presence adds to the scenic beauty of the surrounding area and serves as a vital resource for both recreational purposes and environmental sustainability. As a regulated water source, its maintenance and upkeep are overseen by state authorities to ensure its continued safety and functionality for future generations to enjoy.
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 Lake Henry -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lackawanna River At Archbald | 167 cfs | → |
| Lackawanna R Bl Leggetts Creek At Scranton | 223 cfs | → |
| West Branch Lackawaxen River At Prompton | 62 cfs | → |
| Lackawaxen River Near Honesdale | 230 cfs | → |
| Lackawaxen River At Hawley | 350 cfs | → |
| Dyberry Creek Near Honesdale | 76 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Henry.
Boat launches
- Merli-Sarnoski
- Wallenpaupack Lake Access
- Prompton Dam
- Fairview Lake
- Beechwood Area
- Bear Wallow Road - Observation Station
Track Lake Henry 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 Lake Henry
Where does the data for Lake Henry 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 Lake Henry.