Rock Island Dam Quick Facts
Rock Island Dam Map
Rock Island Dam Information
Rock Island Dam is a gravity dam located about 32 miles from Vantage, Wa, Douglas, Washington.
The dam, which is on the Columbia River, was primarily built for Hydroelectric purposes, but also serves for Flood Risk Reduction benefits.
The dam was designed by Stone & Webster Engineering Corporation and commissioned in 1932 and is currently owned by PUD #1 of Chelan County, WA.
Rock Island Dam Structure
The Rock Island Dam is approximately 3,108 feet (947 m) long, 71 feet (22 m) high and has a structural volume of 0 cubic yards (0 cubic metres).
Rock Island Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 113,700 acre-ft (140,247 Ml) and maximum capacity of 131,000 acre-ft (161,586 Ml).
The surface area of the reservoir is 3,120 acres (1,263 ha) and the total catchment area is 89,400 square miles (231,545 square kilometres).
Rock Island Dam Spillway
The dam spillway has a maximum discharge capacity of 920000 cubic feet per second (26051 cubic metres per second).
Rock Island Dam Compared to Five Famous American Dams
Rock Island Dam Weather
Current Conditions at Rock Island Dam
Parameter | Value |
---|---|
Current Time | 17:04 |
Sunrise | 07:01 |
Sunset | 16:28 |
Temperature (°F) | 50 |
Feels Like (°F) | 46 |
Cloud Coverage (%) | 0 |
Pressure (inHg) | 1013 |
Humidity (%) | 67 |
Wind Speed (mph) | 8 |
Rain (mm) | 0 |
7-Day Forecast for Rock Island 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 | 41 | 54 | 51 | 1013 | 54 | 8 | 18 | WSW | 63 | 0 | |
Wed | 43 | 47 | 47 | 1005 | 96 | 9 | 19 | SSE | 100 | 12 | |
Thu | 41 | 52 | 50 | 1011 | 75 | 5 | 6 | NW | 38 | 0 | |
Fri | 37 | 49 | 44 | 1015 | 56 | 7 | 7 | NW | 0 | - | |
Sat | 34 | 44 | 40 | 1019 | 63 | 6 | 5 | NW | 0 | - | |
Sun | 36 | 48 | 44 | 1004 | 72 | 23 | 39 | W | 59 | 1 | |
Mon | 33 | 44 | 38 | 1012 | 61 | 6 | 8 | NW | 0 | - | |
Tue | 31 | 42 | 36 | 1031 | 58 | 6 | 5 | NW | 0 | - |
Rock Island Dam Frequently Asked Questions
Rock Island Dam is in Washington.
Rock Island Dam is in Douglas County.
Rock Island Dam is 71 feet high.
Rock Island Dam is 3,108 feet long.
More Dams in Douglas County:
Berry Creek DamCooper Creek (Sutherlin) Dam
Dog River Reservoir Dam
Douglas County State Lake Dam
Galesville Dam
Horse Spring Coulee Dam
Lake Aaron Dam
Lake Geneva Dam
Lake Miltona Dam
Leader Lake Dam
Lemolo No 1 Dam
Lone Star Lake Dam
Lower Eau Claire Lake Dam
Mud Lake Dam
Newport Landing Dam
Papio Creek 15-A Dam
Rock Island Dam
Rueter Hess Dam
Saint Croix Dam
Strontia Springs Dam
Tahkenitch Lake Dam
Zosel Dam
More Dams in Washington:
Alder DamBoundary Dam
Box Canyon Dam
Bumping Lake Dam
Castle Lake Debris Dam
Centralia Coal Mine Dam No 3c South
Chaplain Lake North Dam
Chaplain Lake South Dam
Chapman Lake Dam
Chelan Dam
Cle Elum Dam
Coldwater Debris Dam
Conconully Dam
Cowlitz Falls Dam
Culmback Dam
Cushman No 1 Dam
Cushman No 2 Dam
Diablo Dam
Dry Falls Dam
Eagle Lake Dam
Gorge Dam
Grand Coulee Dam
Horse Spring Coulee Dam
Judy Reservoir Dam A
Judy Reservoir Dam B
Kachess Dam
Keechelus Dam
Kinross Gold Kettle River Tailings Dam
La Grande Dam
Leader Lake Dam
Long Lake Dam
Long Lake East Dam
Loon Lake Control Structure Dam
Lower Baker Dam
Masonry Dam
Mayfield Dam
Merwin Dam
Morse Lake Overflow Dike
Moses Lake North Dam
Moses Lake South Dam
Mossyrock Dam
Newman Lake Flood Control Dam
North Dam
Osullivan Dam
Packwood Lake Dam
Padden Lake Dam
Pinto Dam
Priest Rapids Dam
Rock Island Dam
Rocky Reach 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