Garrelts No. 1 dam
Garrelts No. 1
Garrelts No. 1 is a privately owned earth dam located in Goshen, Wyoming, along the Garrelts Draw river. Built in 1975 by designer J. H. Coffman, this dam serves primarily for irrigation purposes and stands at a height of 17 feet with a length of 1200 feet. With a storage capacity of 205 acre-feet and a surface area of 42 acres, this dam plays a crucial role in water resource management in the region.
Despite its importance, Garrelts No. 1 is currently classified as having a low hazard potential and poor condition assessment, as of the last inspection in May 2017. The dam features an uncontrolled spillway type with a width of 55 feet and a single slide gate outlet. It is subject to state regulation, permitting, inspection, and enforcement, highlighting the commitment to ensuring its safety and functionality. While it has a moderate risk assessment rating, there are no specific risk management measures or emergency action plans documented for this structure.
Overall, Garrelts No. 1 represents a significant piece of infrastructure within the water management system of Wyoming. Its presence along the Garrelts Draw river contributes to the irrigation needs of the area, despite its current condition assessment and risk level. As water resource and climate enthusiasts, understanding the status and management of dams like Garrelts No. 1 is crucial for ensuring the sustainability and safety of our water supply systems in the face of changing environmental conditions.
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 Garrelts No. 1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Laramie River Near Fort Laramie | 42 cfs | → |
| North Platte River Below Whalen Diversion Dam | · | → |
| North Platte River At Wyoming-Nebraska State Line | 193 cfs | → |
| Sybille Creek Ab Canal No. 3 | 93 cfs | → |
| Sybille Creek Ab Mule Creek | 143 cfs | → |
| North Platte River Below Glendo Reservoir | 5,710 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Garrelts No. 1.
Campgrounds
- Grayrocks Reservoir Public Access - Wgf
- Hawk Springs State Rec Area
- Lewis Park Campground
- Lewis Park
- Larson Park
- Guernsey State Park
Fishing spots
Paddle runs
- Duck Creek
- Western Boundary Of Agate Fossil Beds National Monument To Eastern Boundary Of Agate Fossil Beds National Monument
More reservoirs
Track Garrelts No. 1 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 Garrelts No. 1
Where does the data for Garrelts No. 1 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 Garrelts No. 1.