Dry Muddy dam
Dry Muddy
Dry Muddy is a private earth dam located in the Big Muddy Oil Field in Natrona County, Wyoming. Completed in 1933 for irrigation purposes, the dam stands at 19 feet high with a hydraulic height of 14 feet and a length of 800 feet. Despite its age, the dam has a low hazard potential but is in poor condition, as noted during the last inspection in August 2021.
The dam has a normal storage capacity of 213 acre-feet and a maximum storage of 401 acre-feet, serving as a vital water resource for the area. Its spillway type is uncontrolled with a width of 25 feet, and it is equipped with a single valve outlet gate for water release. Although Dry Muddy Creek is the primary source of water for the dam, its drainage area is listed as zero, suggesting potential limitations on its water supply.
With a moderate risk assessment rating, it is crucial for the owner to address the poor condition of Dry Muddy dam to ensure its continued safety and functionality for irrigation purposes. Regular inspections and maintenance are essential to mitigate any potential risks and safeguard this valuable water resource in Wyoming.
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 Dry Muddy -- 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 | → |
| North Platte River At Orin | 612 cfs | → |
| Sweetwater River Near Alcova | 27 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dry Muddy.
Boat launches
- Chalk Bluffs Boat Ramp
- Whitetail Day Use Area Boat Ramp
- Miles Landing Boat Ramp 1
- Miles Landing Boat Ramp 2
- Trapper Route Road Natrona County
- Goldeneye Reservoir Boat Ramp
Campgrounds
- Beartrap - Casper Mountain Park
- Casper Koa Journey
- Lodge Pole
- Rim Campsite 6
- Rim Campsite 8
- Rim Campsite 5
Fishing spots
More reservoirs
Track Dry Muddy 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 Dry Muddy
Where does the data for Dry Muddy 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 Dry Muddy.