Athens Water Supply Dam dam
Athens Water Supply Dam
Athens Water Supply Dam, also known as Hollister Lake, is a vital water resource located in Greene, New York. This local government-owned dam was completed in 1925 and serves as a key water supply for the area, with a storage capacity of 160 acre-feet and a normal storage level of 140 acre-feet. The dam, standing at a height of 8 feet and a length of 250 feet, harnesses the waters of the HANS VOSEN KILL river to provide essential water for the community.
Despite its age, Athens Water Supply Dam is in satisfactory condition and has a significant hazard potential, highlighting the importance of regular inspections and maintenance. The dam features an uncontrolled spillway with a width of 27 feet and a maximum discharge capacity of 81 cubic feet per second. The risk assessment for the dam is moderate, with a DSAC assigned date yet to be determined, emphasizing the need for ongoing risk management measures to ensure the safety and stability of the structure.
With its crucial role in providing water for the residents of Limestreet and surrounding areas, Athens Water Supply Dam stands as a testament to the importance of effective water resource management. As a state-regulated and inspected dam, it serves as a lifeline for the community, reflecting the intersection of water resource sustainability and climate resilience. By maintaining the dam's infrastructure and implementing necessary risk management measures, the local government can continue to safeguard this essential water supply 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 Athens Water Supply Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Kinderhook Creek At Rossman Ny | 175 cfs | → |
| Esopus Creek At Mount Marion Ny | 131 cfs | → |
| East Kill Nr Jewett Center Ny | 13 cfs | → |
| West Kill Below Hunter Brook Near Spruceton Ny | 7 cfs | → |
| Valatie Kill Near Nassau Ny | 4 cfs | → |
| Normans Kill At Albany Ny | 50 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Athens Water Supply Dam.
Boat launches
- Green Lake
- Athens Boat Launch
- South River Street Coxsackie
- Anchorage Road Germantown
- Cheviot Road Germantown
- Kinderhook Lake
Campgrounds
- North/South Lake - Dec
- Rip Van Winkle Camping
- Koa Camping
- Lake Taghkanic State Park
- Fox Hollow Camping
- Devils Tombstone - Dec
Paddle runs
- The Massachusetts-Connecticut Border To Falls Mountain Road In Canaan, Connecticut
- Falls Mountain Road In Canaan, Connecticut To Kent Bridge
- Kent Bridge To Boardman Bridge
- Pond Downstream Of Shepaug Reservoir Dam, Marked By Service Road Bridge To Ends In Backwaters Of Lake Lillinonah, Near Roxbury Falls
- Begins Downstream Of The Borough Of Bantam, At Stoddard Road Bridge To The Confluence With The Shepaug River
- Stamford Town Line To Confluence With City Stream
Track Athens Water Supply Dam 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 Athens Water Supply Dam
Where does the data for Athens Water Supply Dam 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 Significant 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 Athens Water Supply Dam.