Jamesville Reservoir Dam dam
Jamesville Reservoir Dam
The Jamesville Reservoir Dam, located in Jamesville, New York, was completed in 1874 and serves as a crucial structure for navigation and recreation purposes. Owned by the state of New York and regulated by the NYS DEC, this masonry dam stands at a height of 53 feet and has a length of 446 feet. With a storage capacity of 6250 acre-feet and a drainage area of 46.9 square miles, the dam plays a significant role in managing water resources in the area.
Despite its historical significance, the Jamesville Reservoir Dam is currently classified as having a high hazard potential and poor condition assessment. With the last inspection conducted in June 2020, the dam poses a moderate risk (level 3) and is in need of maintenance and risk management measures to ensure its structural integrity and safety. It is essential for water resource and climate enthusiasts to stay informed about the condition of this important infrastructure to mitigate potential risks and ensure the continued functionality of the dam for both navigation and recreation purposes.
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 Jamesville Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Onondaga Cr At Dorwin Ave. | 548 cfs | → |
| Harbor Brook At Syracuse Ny | 5 cfs | → |
| Onondaga Cr At Spencer St. | 619 cfs | → |
| Onondaga Creek Near Cardiff Ny | 8 cfs | → |
| Ley Creek At Park Street | 16 cfs | → |
| Ninemile Creek At Lakeland Ny | 103 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jamesville Reservoir Dam.
Boat launches
- Kinne Road 6895, Town Of Dewitt
- Loop The Lake Trail 280, Syracuse
- Markham Hollow Road 279, Town Of Fabius
- Tully Lake
- Lions Parkway Baldwinsville
- Boat Launch Access Town Of Cicero
Campgrounds
- Green Lakes State Park
- Rolling Hills Camping Area
- Pine Woods Camping Area
- Oneida Shores County Park
- Forest Lake Campground
- Verona Beach State Park
Track Jamesville Reservoir 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 Jamesville Reservoir Dam
Where does the data for Jamesville Reservoir 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 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 Jamesville Reservoir Dam.