G. H. Reservoir dam
G. H. Reservoir
G. H. Reservoir, located in Carbon, Wyoming, is a private water storage facility primarily used for fire protection, stock, and as a small fish pond. Built in 1977, this earth dam stands at a height of 17 feet and has a hydraulic height of 12 feet, with a capacity to hold 165 acre-feet of water in its 38-acre surface area. The reservoir is situated along the Middle Ditch Draw and serves as a crucial resource for flood risk reduction in the region.
Despite its low hazard potential, G. H. Reservoir has a poor condition assessment as of May 2021, indicating the need for maintenance and repair. The dam features an uncontrolled spillway with a width of 200 feet and one uncontrolled outlet gate. The surrounding drainage area is 17.4 square miles, with a maximum discharge capacity of 6,772 cubic feet per second. While the reservoir has not undergone significant modifications in recent years, regular inspections are conducted to ensure its structural integrity and safety.
In the event of an emergency, it is essential for the owners of G. H. Reservoir to have an updated Emergency Action Plan (EAP) in place to mitigate risks and protect downstream communities. With a moderate risk assessment rating, there is a need for proactive risk management measures to address any potential issues that may arise in the future. As a vital water resource in the region, G. H. Reservoir plays a crucial role in water storage and flood control, highlighting the importance of ongoing maintenance and oversight to ensure its continued functionality.
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 G. H. Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Medicine Bow R Ab Seminoe Reservoir | 38 cfs | → |
| N Platte Riv Ab Seminoe Reservoir | 1,640 cfs | → |
| Pass Creek Near Elk Mountain | 149 cfs | → |
| L Medicine Bow R At Boles Spring | 10 cfs | → |
| Rock Creek Ab King Canyon Canal | 129 cfs | → |
| Jack Creek Above Coyote Draw | 133 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near G. H. Reservoir.
Boat launches
- Shiners Point Road Carbon County
- Dugway Campground Boat Takeout
- East Allen Lake Boat Ramp
- Carbon County
- East Allen Lake Boat Launch
Campgrounds
- Seminoe State Park
- Dugway Campsite 1
- Dugway Campsite 2
- Dugway Campsite 3
- Dugway Campsite 4
- Dugway Campsite 5
Track G. H. Reservoir 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 G. H. Reservoir
Where does the data for G. H. Reservoir 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 G. H. Reservoir.