Island Park Dike dam
Island Park Dike
Island Park Dike, located in Fremont, Idaho, is a federally owned structure managed by the Bureau of Reclamation. Built in 1937, this earth dam stands at a height of 12 feet and spans a length of 7870 feet, with a maximum storage capacity of 169,646 acre-feet. The dam serves the primary purpose of flood control and is regulated by the Bureau of Reclamation to ensure its safe operation and maintenance.
This dike plays a crucial role in protecting the surrounding area from potential flooding events, with a high hazard potential due to its location and storage capacity. Despite its age, the condition assessment of Island Park Dike is currently not available, highlighting the need for ongoing monitoring and maintenance to mitigate risks and ensure its effectiveness in safeguarding the community. The dike also has an Emergency Action Plan in place, although it may require updates to meet current guidelines and address potential risks.
With the potential for high-risk situations and a very high risk assessment rating, Island Park Dike remains a key infrastructure in the region's water resource management and climate resilience efforts. Its strategic design, federal ownership, and regulatory oversight by the Bureau of Reclamation underscore the importance of this structure in safeguarding the local community and environment from the impacts of extreme weather events and flooding.
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 Island Park Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Henrys Fork Nr Island Park Id | 276 cfs | → |
| Henrys Fork Blw Coffee Pot Rapids Nr Macks Inn Id | 372 cfs | → |
| Big Springs At Big Springs Id | 128 cfs | → |
| Henrys Fork Nr Lake Id | 8 cfs | → |
| Red Rock Cr Ab Lakes Nr Lakeview Mt | 64 cfs | → |
| Madison River Near West Yellowstone Mt | 495 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Island Park Dike.
Boat launches
- Island Park Boating Site
- Fremont County
- Forest Road 413 Fremont County
- Mccrea Road Fremont County
- Old Highway Island Park
- Big Springs Boating Launch
Campgrounds
- Box Canyon Campground
- Buffalo Campground
- Buttermilk
- Buttermilk Campground
- Mccrea Bridge
- Mccrea Bridge Campground
Fishing spots
Paddle runs
- Box Canyon
- Elk Creek To Slackwater Of Ponds Power Dam
- Buffalo River Springs To Confluence With Elk Creek
- Coffee Pot Campground To Mccrea's Bridge
- Island Park Dam To Box Canyon Summer Homes
- Box Canyon Summer Homes To Northern Boundary Of Harriman Park
More reservoirs
Track Island Park 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 Island Park Dike
Where does the data for Island Park 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 Island Park Dike.