Weir Lake dam
Weir Lake
Weir Lake, located in Woodland, Utah, is a private reservoir on the North Fork of the Provo River primarily used for irrigation purposes. Built in 1933, this masonry dam stands at a structural height of 17 feet and has a hydraulic height of 13 feet, with a storage capacity of 116 acre-feet. The dam is regulated by the Utah Division of Water Rights and is inspected regularly to ensure its safety and compliance with state regulations.
The low hazard potential of Weir Lake makes it a relatively low-risk structure, although its condition has not been officially rated. Despite its age, Weir Lake remains an important water resource for the surrounding area, with a normal storage capacity of 46 acre-feet. The dam has not undergone any significant modifications in recent years, and its last inspection was conducted in July 2011, with an inspection frequency of every 5 years.
With its picturesque location in Summit County, Utah, Weir Lake offers a vital source of water for irrigation while also providing a peaceful and scenic environment for water resource and climate enthusiasts to enjoy. As a privately owned reservoir, Weir Lake plays a crucial role in water management in the region, showcasing the importance of maintaining and monitoring such structures to ensure their long-term sustainability and safety.
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 Weir Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Provo River Near Woodland | 646 cfs | → |
| Weber River Near Oakley | 546 cfs | → |
| Provo River Near Hailstone | 649 cfs | → |
| Weber River Near Peoa | 632 cfs | → |
| Bear River Near Utah-Wyoming State Line | 451 cfs | → |
| Weber River Near Wanship | 159 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Weir Lake.
Boat launches
- Rock Cliff Boat Ramp
- State Route 319 Wasatch County
- Forest Service Road Wasatch County
- Deer Creek State Park- Charleston Day Use Area
Campgrounds
- Washington Lake
- Washington Lake Campground
- Trial Lake
- Lilly Lake
- Lilly Lake Campground
- Cobblerest Campground
Fishing spots
Track Weir Lake 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 Weir Lake
Where does the data for Weir Lake 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 Weir Lake.