Newtown Hoffman Site 5a Dam dam
Newtown Hoffman Site 5a Dam
Newtown Hoffman Site 5a Dam, also known as Jackson Creek Dam, is a critical flood risk reduction structure located in Elmira, New York. Built in 1999 by the USDA NRCS, this Earth-type dam stands at a height of 52 feet and spans 315 feet in length. With a storage capacity of 1469 acre-feet and a drainage area of 1977 acres, it plays a key role in managing water levels and mitigating the risk of flooding in the region.
The dam is regulated by the NYS DEC and undergoes regular inspections to ensure its structural integrity. Despite being classified as having a high hazard potential, the condition assessment in 2019 rated it as satisfactory. In the event of an emergency, plans are in place to manage the risk and protect the surrounding community. With a moderate risk assessment rating, stakeholders are actively involved in implementing measures to enhance the dam's resilience and overall safety.
As part of the Buffalo District, the Newtown Hoffman Site 5a Dam is a crucial piece of infrastructure that exemplifies the collaboration between local government and state agencies in safeguarding water resources and addressing the challenges posed by climate change. Its strategic location along Jackson Creek highlights the importance of proactive measures in managing water flow and protecting the environment and local communities from the impacts of extreme weather events.
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 Newtown Hoffman Site 5a Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chemung River At Elmira Ny | 1,360 cfs | → |
| Chemung River At Chemung Ny | 1,650 cfs | → |
| Chemung River At Corning Ny | 142 cfs | → |
| Susquehanna River Near Waverly Ny | 4,320 cfs | → |
| Sixmile Creek At Bethel Grove | 21 cfs | → |
| Sixmile Creek At Brooktondale Ny | 83 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Newtown Hoffman Site 5a Dam.
Track Newtown Hoffman Site 5a 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 Newtown Hoffman Site 5a Dam
Where does the data for Newtown Hoffman Site 5a 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 Newtown Hoffman Site 5a Dam.