Egin Canal Diversion dam
Egin Canal Diversion
The Egin Canal Diversion, also known as St. Anthony, is a private irrigation structure located in Fremont, Idaho. Completed in 1903, this gravity dam serves multiple purposes including hydroelectric power generation, irrigation, and recreation. With a dam height of 6.5 feet and a length of 360 feet, it has a storage capacity of 500 acre-feet and can discharge up to 50,000 cubic feet of water per second.
Operated under the oversight of the Federal Energy Regulatory Commission, the Egin Canal Diversion has a low hazard potential and a moderate risk assessment. Despite its age, the structure remains in good condition with a regular inspection frequency to ensure its safety. The dam features an uncontrolled spillway, a multi-arch core type, and is constructed on a rock foundation, providing essential water resources for agriculture and other uses in the region.
Located on the Henrys Fork Snake River, the Egin Canal Diversion plays a crucial role in water management and supply in the area. As a key component of the local irrigation system, it highlights the intersection of water resource management and climate considerations in ensuring sustainable water use for agricultural and recreational purposes.
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 Egin Canal Diversion -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Henrys Fork At St Anthony Id | 898 cfs | → |
| Teton River Nr St Anthony Id | 1,100 cfs | → |
| Nf Teton River Nr Sugar City Id | 125 cfs | → |
| Falls River Nr Chester Id | 884 cfs | → |
| South Fork Teton River Nr Rexburg Id | 131 cfs | → |
| Henrys Fork Nr Ashton Id | 979 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Egin Canal Diversion.
Boat launches
- Trestle Bridge
- Red Road Bridge Boat Access
- Lorenzo Boat Access
- Menan Butte
- East Hatchery Ford Boating Site
- Heise Bridge Boat Access
Campgrounds
- Red Road Camping Area
- Egin Lakes
- Egin Lake Campground
- Jolley Camper
- Beaver Dick Park
- Twin Bridges Co Park
Fishing spots
Track Egin Canal Diversion 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 Egin Canal Diversion
Where does the data for Egin Canal Diversion 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 Egin Canal Diversion.