Priest Rapids Dam Quick Facts
Priest Rapids Dam Map
Priest Rapids Dam Information
Priest Rapids Dam is a gravity concrete rockfill dam located about 57 miles from Richland, Wa, Grant, Washington.
The dam, which is on the Columbia River, was primarily built for Hydroelectric purposes, but also serves for Recreation and Flood Risk Reduction benefits.
The dam was designed by Harza Engineering Company and commissioned in 1961 and is currently owned by .
Priest Rapids Dam Structure
The Priest Rapids Dam is approximately 10,103 feet (3,079 m) long, 90 feet (27 m) high and has a structural volume of 3,300,000 cubic yards (2,523,032 cubic metres).
Priest Rapids Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 191,000 acre-ft (235,595 Ml) and maximum capacity of 191,000 acre-ft (235,595 Ml).
The surface area of the reservoir is 7,580 acres (3,068 ha) and the total catchment area is 95,500 square miles (247,344 square kilometres).
Priest Rapids Dam Spillway
The dam has a 1152 feet (351 m) wide controlled spillway with a maximum discharge capacity of 1334992 cubic feet per second (37803 cubic metres per second).
Priest Rapids Dam Compared to Five Famous American Dams
Priest Rapids Dam Weather
Current Conditions at Priest Rapids Dam
| Parameter | Value |
|---|---|
| Current Time | 20:55 |
| Sunrise | 07:17 |
| Sunset | 18:12 |
| Temperature (°F) | 63 |
| Feels Like (°F) | 62 |
| Cloud Coverage (%) | 100 |
| Pressure (inHg) | 1013 |
| Humidity (%) | 58 |
| Wind Speed (mph) | 9 |
| Rain (mm) | 1 |
7-Day Forecast for Priest Rapids 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 | 59 | 76 | 70 | 1015 | 49 | 15 | 17 | SW | 20 | 1 |  |
| Wed | 48 | 66 | 61 | 1011 | 50 | 18 | 25 | WNW | 0 | - |  |
| Thu | 41 | 61 | 53 | 1011 | 39 | 20 | 29 | NW | 0 | - | |
| Fri | 39 | 59 | 53 | 1025 | 40 | 12 | 20 | W | 0 | - |  |
| Sat | 44 | 60 | 55 | 1023 | 38 | 3 | 4 | WSW | 0 | - | |
| Sun | 50 | 65 | 61 | 1014 | 60 | 20 | 25 | NW | 0 | - | |
| Mon | 46 | 62 | 56 | 1019 | 40 | 11 | 14 | W | 0 | - |  |
| Tue | 47 | 62 | 54 | 1020 | 41 | 7 | 7 | WNW | 0 | - | |
Priest Rapids Dam Frequently Asked Questions
Priest Rapids Dam is in Washington.
Priest Rapids Dam is in Grant County.
Priest Rapids Dam is 90 feet high.
Priest Rapids Dam is 10,103 feet long.
More Dams in Grant County:
Barrett Lake DamChino Mines Tailings Dam No. 7
Dry Falls Dam
Heart Butte Dam
Iatt Lake Dam
Moses Lake North Dam
Moses Lake South Dam
Mt. Storm Lake Dam
Nantachie Lake Dam
Nantachie Lake Dam No. 2
North Dam
Osullivan Dam
Patterson Creek No. 41 Dam
Pinto Dam
Pomme De Terre Dam
Priest Rapids Dam
Soda Lake Dike
Williamstown Lake Dam
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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