Dam Report

Sulphur Creek dam

Wyoming, USA Sulphur Creek Hazard High
Today high
--
Tonight low
--
Dam height
85ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Sulphur Creek -- None dam
Sulphur Creek None · Sulphur Creek
About this dam

Sulphur Creek

Sulphur Creek, located in Uinta County, Wyoming, is a vital water resource for the city of Evanston, serving primarily for irrigation purposes. The dam on Sulphur Creek is an earth structure with a height of 85 feet and a hydraulic height of 73 feet, completed in 1964. The reservoir created by the dam has a storage capacity of 19,775 acre-feet, with a surface area of 632 acres and a drainage area of 62.7 square miles.

The dam at Sulphur Creek has a high hazard potential and is rated in fair condition as of the last assessment in July 2018. The spillway type is uncontrolled with a width of 16 feet, and there is one uncontrolled outlet gate. Despite its moderate risk level, the dam has not been modified in recent years, and emergency action plans are not fully developed. It is important for water resource and climate enthusiasts to monitor the upkeep and maintenance of Sulphur Creek Dam to ensure the safety and efficiency of this critical infrastructure.

Overall, Sulphur Creek Dam plays a crucial role in supporting agricultural activities in the region and managing flood risks. With its strategic location and significant storage capacity, it is essential for stakeholders to prioritize regular inspections and potential upgrades to mitigate any potential hazards and ensure the long-term sustainability of this important water resource.

StateNone
River / streamSulphur Creek
NID IDWY01196
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1964
Dam height85 ft
Dam length4,725 ft
Max storage19,775 AF
Normal storage19,775 AF
Surface area632.0 ac
Drainage area62.7 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 18 Jul 2018 12:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Sulphur Creek -- inflows here typically show up in storage 24-72 hours later.

Track Sulphur Creek 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.

FAQ

About Sulphur Creek

Where does the data for Sulphur Creek 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 High 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Sulphur Creek.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

Upgrade to Premium Not now
🔔

Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

Open App Store