Chevron Gypsum dam
Chevron Gypsum
Chevron Gypsum is a private dam located in Sweetwater, Wyoming, specifically in the city of Rock Springs. Built in 1986, this earth dam stands at a height of 53 feet and has a structural height of 67 feet, with a hydraulic height of 28 feet. The dam serves various purposes, with a primary purpose listed as "Other", and is classified as having a low hazard potential and fair condition assessment.
The dam has a normal storage capacity of 295 acre-feet, with a surface area of 35 acres and a drainage area of 1.8 square miles. Despite being inspected with a frequency of every 5 years, the last inspection took place in October 2017. The dam does not have a spillway, outlet gates, or associated structures, and is not equipped with locks.
Located on the Jason Draw river or stream, Chevron Gypsum presents a high risk level (2) according to the data provided. With the potential for climate change impacting water resource management, it is crucial for enthusiasts to monitor and assess the risk management measures in place for dams like Chevron Gypsum to ensure the safety 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 Chevron Gypsum -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Green River Near Green River | 898 cfs | → |
| Blacks Fork Near Little America | 16 cfs | → |
| Pacific Creek Near Farson | 3 cfs | → |
| Henrys Fork Near Manila | 17 cfs | → |
| Green River Near Greendale | 1,280 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Chevron Gypsum.
Campgrounds
- Koa Rock Springs
- Free Camp
- Firehole Campground
- Firehole Canyon - Flaming Gorge Reservoir
- North Table Rock Camping Area
- Killpecker Sand Dunes Campsite 2
Track Chevron Gypsum 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 Chevron Gypsum
Where does the data for Chevron Gypsum 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 Chevron Gypsum.