P. Lorang Grazing Assn dam
P. Lorang Grazing Assn
Located in Meade County, South Dakota, the P. Lorang Grazing Assn dam, completed in 1952, serves as a vital structure along the TR Cheyenne river. Managed by a private entity, this earth dam stands at 16 feet in height and spans 680 feet in length, with a storage capacity of 96 acre-feet. While the dam is state-regulated and inspected, its hazard potential is considered low, and its condition is currently not rated.
Operated by the Natural Resources Conservation Service, the P. Lorang Grazing Assn dam plays a key role in water resource management and climate resilience efforts. Despite lacking a formal assessment of its condition, the dam continues to provide essential services for the surrounding area, including flood control and water storage. With its state-regulated status and regular inspections, the dam exemplifies the importance of proactive infrastructure maintenance for sustainable water resource management.
As climate change impacts continue to pose challenges for water resources, the P. Lorang Grazing Assn dam stands as a crucial asset for the community. With a focus on safety and compliance, the dam's low hazard potential and state-regulated status highlight the commitment to effective water management practices. As efforts to address climate change intensify, structures like the P. Lorang Grazing Assn dam will play a vital role in ensuring the resilience and sustainability of water resources 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 P. Lorang Grazing Assn -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Moreau R Near Faith Sd | 135 cfs | → |
| Cheyenne R Near Plainview Sd | 4,730 cfs | → |
| Belle Fourche River Near Elm Springs | 411 cfs | → |
| Elk Cr Near Elm Springs Sd | 2 cfs | → |
| Belle Fourche R Near Sturgis Sd | 312 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near P. Lorang Grazing Assn.
More reservoirs
Track P. Lorang Grazing Assn 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 P. Lorang Grazing Assn
Where does the data for P. Lorang Grazing Assn 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 P. Lorang Grazing Assn.