Hyrum Dike dam
Hyrum Dike
Hyrum Dike, located in Cache County, Utah, along the Little Bear River, is a federal-owned structure managed by the Bureau of Reclamation. Completed in 1935, this earth dam stands at 18 feet high and serves primarily for irrigation purposes, with a storage capacity of 18,685 acre-feet. Stretching 850 feet in length and covering a surface area of 480 acres, Hyrum Dike plays a crucial role in water supply management in the region.
Notable for its high hazard potential, Hyrum Dike lacks a spillway and is categorized as a high-risk structure. Despite its age, the condition assessment of the dam is currently not available, raising concerns about its long-term resilience. With the last inspection conducted in August 2020 and a designated inspection frequency of one year, the structure is closely monitored by the Bureau of Reclamation to ensure public safety and water resource sustainability.
As climate change poses new challenges to water resource management, the importance of structures like Hyrum Dike in regulating water flow and providing essential irrigation services cannot be overstated. With ongoing risk assessments and emergency action planning, efforts are being made to mitigate potential hazards and safeguard the surrounding communities. Hyrum Dike stands as a testament to the intricate balance between human infrastructure and natural resources, highlighting the critical role of water management in the face of a changing climate.
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 Hyrum Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Bear River At Paradise | 83 cfs | → |
| Blacksmith Fork Ab U.P.&L. Co | 74 cfs | → |
| Logan River Above State Dam | 410 cfs | → |
| Logan | 68 cfs | → |
| Bear River Near Corinne | 411 cfs | → |
| Ogden River Bl Pineview Res Near Huntsville | 177 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hyrum Dike.
Boat launches
- Highway 30 Cache County
- West 3000 North 4507, Cache County
- North 3000 West Cache County
- Promontory Road Corinne
- Highway 102 Box Elder County
- West 6200 North 6484, Cache County
Campgrounds
- Little Valley Country Store & Campground
- Box Elder Campground
- Blacksmith Fork Cabin
- Friendship Campground
- Bridger Campground
- Logan, Free Camping
Track Hyrum Dike 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 Hyrum Dike
Where does the data for Hyrum Dike 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Hyrum Dike.