Sandy Ridge Lagoon 1 Dam dam
Sandy Ridge Lagoon 1 Dam
Sandy Ridge Lagoon 1 Dam, located in Holt, Nebraska, stands as a crucial structure regulating the flow of the TR-NIOBRARA RIVER. Completed in 2013, this private-owned Earth dam reaches a height of 39.9 feet and boasts a storage capacity of 91.1 acre-feet. Its primary purpose is designated as "Other," serving a vital role in water resource management in the region.
Despite its significant hazard potential, Sandy Ridge Lagoon 1 Dam has been assessed as satisfactory and is inspected regularly by the Nebraska Department of Natural Resources. The dam's condition assessment in May 2020 deemed it in good standing, reassuring stakeholders of its structural integrity. While the dam lacks specific spillway information, its strategic location and design contribute to efficient water management in the area.
With a surface area of 4.2 acres and a drainage area of 0.13 square miles, Sandy Ridge Lagoon 1 Dam plays a crucial role in flood prevention and water storage. Managed by a private entity, this dam underscores the importance of responsible infrastructure development in safeguarding water resources and mitigating climate-related risks in the region.
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 Sandy Ridge Lagoon 1 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Niobrara River At Mariaville | 1,700 cfs | → |
| Platte Creek Near Platte | 0 cfs | → |
| Long Pine Creek Near Riverview | 157 cfs | → |
| Keya Paha R At Wewela Sd | 57 cfs | → |
| Niobrara River Nr. Verdel | 2,750 cfs | → |
| Ponca Creek At Verdel | 13 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sandy Ridge Lagoon 1 Dam.
Boat launches
- Hull Lake Wma
- Gregory County
- North Wheeler Road Charles Mix County
- 376th Avenue Charles Mix County
- 293rd Street Charles Mix County
Track Sandy Ridge Lagoon 1 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 Sandy Ridge Lagoon 1 Dam
Where does the data for Sandy Ridge Lagoon 1 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 Sandy Ridge Lagoon 1 Dam.