Dam Report

Weber Basin Equalizing Reservoir 18.9 dam

Utah, USA Os Davis-Weber Aqueduct Hazard High
Today high
--
Tonight low
--
Dam height
22ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Weber Basin Equalizing Reservoir 18.9 -- None dam
Weber Basin Equalizing Reservoir 18.9 None · Os Davis-Weber Aqueduct
About this dam

Weber Basin Equalizing Reservoir 18.9

Weber Basin Equalizing Reservoir 18.9, located in Davis County, Utah, is a critical federal water resource managed by the Bureau of Reclamation. Completed in 1960, this earth dam structure stands at a hydraulic height of 20 feet and a structural height of 22 feet, with a maximum storage capacity of 25 acre-feet. The reservoir serves as a key component of the OS Davis-Weber Aqueduct, ensuring a reliable water supply for the region.

Despite its high hazard potential, the condition assessment of Weber Basin Equalizing Reservoir 18.9 is currently not available. However, regular inspections are carried out by the Bureau of Reclamation to ensure the safety and integrity of the dam. The reservoir's Emergency Action Plan was last revised in June 2020, indicating preparedness for potential risks. With a risk assessment rating of "Very High (1)," the management of this water resource is of utmost importance to protect surrounding communities and infrastructure.

With a controlled spillway and no associated locks, Weber Basin Equalizing Reservoir 18.9 plays a vital role in water management and distribution in the region. As climate change continues to impact water resources, the proper maintenance and monitoring of this reservoir are essential to safeguard against potential emergencies and ensure a sustainable water supply for the future.

StateNone
River / streamOs Davis-Weber Aqueduct
NID IDUT10225
Owner typeFederal
Dam typeEarth
Year built1960
Max storage25 AF
Hazard potentialHigh
ConditionNot Available
Last inspectionThu, 30 Apr 2020 00:00:00 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 Weber Basin Equalizing Reservoir 18.9 -- inflows here typically show up in storage 24-72 hours later.

Track Weber Basin Equalizing Reservoir 18.9 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 Weber Basin Equalizing Reservoir 18.9

Where does the data for Weber Basin Equalizing Reservoir 18.9 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.

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