Jack Sinn Wetland Dam dam
Jack Sinn Wetland Dam
Jack Sinn Wetland Dam, located in Lancaster County, Nebraska, is a state-regulated water resource managed by the Nebraska Department of Natural Resources. Built in 2000 by the USDA NRCS, this earth dam stands at a height of 15 feet and serves as a Fish and Wildlife Pond with a storage capacity of 179 acre-feet. The dam has a low hazard potential and is in satisfactory condition as of its last inspection in July 2011.
Situated along the TR-ASH HOLLOW CREEK, Jack Sinn Wetland Dam covers a surface area of 63 acres and has a drainage area of 0.2 square miles. With a maximum discharge capacity of 17 cubic feet per second, the dam provides essential habitat for aquatic wildlife and contributes to the conservation efforts in the region. The dam's primary purpose is to support fish and wildlife populations, making it a valuable resource for environmental enthusiasts and climate conservationists.
Managed by the Natural Resources Conservation Service and located in the city of Greenwood, Jack Sinn Wetland Dam plays a crucial role in regulating water flow and preserving the surrounding ecosystem. With its stone core and soil foundation, the dam exemplifies sustainable infrastructure design and underscores the importance of responsible water management practices. As a focal point for water resource and climate enthusiasts, Jack Sinn Wetland Dam stands as a testament to the intersection of environmental conservation and engineering excellence in safeguarding our natural resources 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 Jack Sinn Wetland Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rock Creek Near Ceresco | 90 cfs | → |
| Wahoo Creek At Ithaca | 221 cfs | → |
| Little Salt Creek Near Lincoln | 15 cfs | → |
| Salt Creek At Greenwood | 938 cfs | → |
| Salt Creek At 70th St. At Lincoln | 397 cfs | → |
| Stevens Creek Nr. Lincoln | 22 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jack Sinn Wetland Dam.
Track Jack Sinn Wetland 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 Jack Sinn Wetland Dam
Where does the data for Jack Sinn Wetland 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 Low 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 Jack Sinn Wetland Dam.