S. P. dam
S. P.
S. P. is a privately owned irrigation dam located in Casper, Wyoming, on the East Webb Creek. Completed in 1952, this earth dam stands at 25 feet high with a hydraulic height of 20 feet and a structural height of 29 feet. With a length of 465 feet and a storage capacity of 52 acre-feet, S. P. serves the primary purpose of irrigation in the area. Despite its poor condition assessment and low hazard potential, the dam has a moderate risk assessment rating and is subject to state regulation, inspection, and enforcement.
The dam features an uncontrolled spillway with a width of 10 feet and an outlet gate of one valve. It is situated in Natrona County, Wyoming, and falls under the jurisdiction of the Sacramento District of the US Army Corps of Engineers. Although S. P. has not undergone recent modifications or emergency action plan updates, its last inspection in August 2019 revealed poor condition. With a moderate risk rating, the dam poses potential challenges for its surrounding area, making regular inspections and maintenance crucial for its continued safe operation.
Owned and operated by a private entity, S. P. serves as a vital irrigation structure in the region, facilitating water supply for agricultural purposes. Despite its age and condition issues, the dam remains in operation, contributing to the local water resource management efforts. Climate and water resource enthusiasts may find interest in the history and maintenance challenges faced by S. P., as well as the importance of effective risk management and regulatory oversight in ensuring its continued functionality and safety.
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 S. P. -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Deer Creek In Canyon | 49 cfs | → |
| Box Elder Creek At Boxelder | 26 cfs | → |
| Sweetwater River Near Alcova | 27 cfs | → |
| Medicine Bow R Ab Seminoe Reservoir | 38 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near S. P..
Boat launches
- Chalk Bluffs Boat Ramp
- Whitetail Day Use Area Boat Ramp
- Miles Landing Boat Ramp 2
- Miles Landing Boat Ramp 1
- Trapper Route Road Natrona County
- Ledge Creek Boat Stopoff
Campgrounds
- Beartrap - Casper Mountain Park
- Casper Koa Journey
- Lodgepole Campsite 15
- Lodgepole Campsite 14
- Lodgepole Campground
- Lodgepole Campsite 1
Fishing spots
More reservoirs
Track S. P. 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 S. P.
Where does the data for S. P. 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 S. P..