Island Park Dam Quick Facts
Island Park Dam Map
Island Park Dam Information
Island Park Dam is an earthen embankment dam located about 60 miles from Saint Anthony, Fremont, Idaho.
The dam, which is on the Henrys Fork River, was primarily built for Irrigation purposes, but also serves for benefits.
The dam was designed by and commissioned in 1937 and is currently owned by US Bureau of Reclamation.
Island Park Dam Structure
The Island Park Dam is approximately 9,448 feet (2,880 m) long, 93 feet (28 m) high and has a structural volume of 564,000 cubic yards (431,209 cubic metres).
Island Park Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 127,646 acre-ft (157,449 Ml) and maximum capacity of 169,646 acre-ft (209,255 Ml).
The surface area of the reservoir is 8,680 acres (3,513 ha) and the total catchment area is 481 square miles (1,246 square kilometres).
Island Park Dam Spillway
The dam has a 257 feet (78 m) wide uncontrolled spillway with a maximum discharge capacity of 5000 cubic feet per second (142 cubic metres per second).
Island Park Dam Compared to Five Famous American Dams
Island Park Dam Weather
Current Conditions at Island Park Dam
| Parameter | Value |
|---|---|
| Current Time | 18:01 |
| Sunrise | 07:54 |
| Sunset | 17:19 |
| Temperature (°F) | 3 |
| Feels Like (°F) | 3 |
| Cloud Coverage (%) | 100 |
| Pressure (inHg) | 1040 |
| Humidity (%) | 93 |
| Wind Speed (mph) | 2 |
| Rain (mm) | 0 |
7-Day Forecast for Island Park Dam
| Day | Min Temp (°F) | Max Temp (°F) | Feels Like (°F) | Pressure (inHg) | Humidity (%) | Wind Speed (mph) | Wind Gust (mph) | Wind Dir | Precip Prob (%) | Precip Volume (mm) | Weather |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | -10 | 10 | -2 | 1039 | 72 | 8 | 16 | SSW | 0 | - |  |
| Wed | -7 | 20 | 16 | 1042 | 83 | 5 | 5 | SSW | 46 | - |  |
| Thu | -7 | 18 | 9 | 1041 | 78 | 6 | 12 | SSW | 0 | - |  |
| Fri | 4 | 22 | 20 | 1022 | 80 | 9 | 23 | NNE | 0 | - | |
| Sat | -1 | 17 | -2 | 1029 | 75 | 12 | 25 | NNE | 0 | - | |
| Sun | -7 | 23 | 3 | 1031 | 59 | 8 | 12 | N | 0 | - |  |
| Mon | 1 | 28 | 22 | 1030 | 73 | 5 | 4 | N | 0 | - |  |
| Tue | 7 | 25 | 23 | 1030 | 88 | 5 | 5 | SSW | 0 | - | |
Island Park Dam Frequently Asked Questions
Island Park Dam is in Idaho.
Island Park Dam is in Fremont County.
Island Park Dam is 93 feet high.
Island Park Dam is 9,448 feet long.
More Dams in Fremont County:
Ashton DamBoysen Dam
Brush Hollow Dam
Bull Lake Dam
Christina Dam
Cotter Tailings Dam
Henrys Lake Dam
Island Park Dam
Lake Cameahwait Dam
Pilot Butte Dam
Ray Lake Dam
Shoshone Lake Dam
Washakie Dam
Washakie Dike No. 1
Washakie Dike No. 2
Washakie Dike No. 3
More Dams in Idaho:
American Falls DamAnderson Ranch Dam
Arrowrock Dam
Ashton Dam
Black Canyon Diversion Dam
Blackfoot Dam
Bliss Dam
Brundage Dam
Bybee Dam
C Ben Ross Dam
C J Strike Dam
Cabinet Gorge Dam
Cascade Dam
Cedar Creek Dam
China Hat Dam
Crane Creek Dike
Crane Creek Main Dam
Daniels Dam
Deadwood Dam
Deep Creek Dam
Deer Flat Lower Dam
Deer Flat Middle Dam
Deer Flat Upper Dam
Fish Creek Dam
Gem State Dam
Glendale Dam
Goose Lake Dam
Grouse Creek South Dam
Hayden Lake Dam
Hells Canyon Dam
Henrys Lake Dam
Hot Springs No 2 Dam
Hulet No 2 Dam
Island Park Dam
Itafos Tailings Pond #4 Dam
Little Camas Dam
Little Payette Lake Main Dam
Little Wood River Dam
Lost Valley Dam
Lower Salmon Dam
Mackay Dam
Magic Dam
Mann Creek Dam
Milner Dam-Middle
Minidoka Dam
Mormon Dam
Mountain Home Dam
Murtaugh Lake Dam
Oakley Dam
Oneida Main Dam
Condition Assessment Classification
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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Source: National Inventory of Dams