Seymour Lake dam
Seymour Lake
Seymour Lake, located in Oakley, Utah, is a privately-owned reservoir primarily used for irrigation purposes. Constructed in 1932, this earth dam stands at a structural height of 15 feet and has a hydraulic height of 11 feet. With a storage capacity of 300 acre-feet, Seymour Lake serves as a crucial water resource for the surrounding area, drawing from the Weber River for its supply.
Managed by the Utah Division of Water Rights, Seymour Lake is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with water management standards. Despite being categorized as having a significant hazard potential, the dam's condition is currently not rated. The last inspection date was in September 2020, with a regular inspection frequency of every two years.
Enthusiasts of water resources and climate will find Seymour Lake an intriguing subject for its historical significance, engineering features, and role in supporting agricultural activities in the region. As a key component of the local water infrastructure, this reservoir exemplifies the intersection of human intervention in natural water systems and the importance of responsible management to ensure sustainable water use in the face of changing climate 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 Seymour Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Weber River Near Oakley | 284 cfs | → |
| Provo River Near Woodland | 322 cfs | → |
| Bear River Near Utah-Wyoming State Line | 237 cfs | → |
| Provo River Near Hailstone | 341 cfs | → |
| Weber River Near Peoa | 286 cfs | → |
| Lake Fork River Ab Moon Lake | 115 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Seymour Lake.
Boat launches
Paddle runs
- Source To Mouth
- Source To Holiday Park
- Upper Provo Falls
- Upper Slate Gorge
- Source To Wilderness Boundary
More reservoirs
Track Seymour 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 Seymour Lake
Where does the data for Seymour 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 Significant 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 Seymour Lake.