Idaho Reservoirs

Water Levels Capacity Storage
September 21 2023

idaho Reservoir Report

September 21 2023

The history of reservoirs and dams in the USA is closely tied to the country's development and growth. Major river systems like the Colorado, Columbia, and Missouri have been extensively dammed to provide water for irrigation, hydropower, flood control, and recreation. Many of these dams were constructed in the mid-20th century, during a period of rapid infrastructure development, and have since played an essential role in the country's economy and society.

The US has a vast network of dams and reservoirs, with over 90,000 dams across the country, including 2,500 major dams. Many of these dams are located on major river systems, such as the Colorado River, where they have significant hydrological impacts on the river's flow and ecosystem. Dams can also have important climatic impacts, influencing the amount of water available for irrigation, and potentially affecting regional climates. For example, the construction of large reservoirs in arid regions like the Colorado River basin can lead to increased evaporation rates, reducing the amount of water available for other uses. Additionally, climate change may exacerbate existing hydrological and climatic concerns, potentially leading to more frequent and severe droughts and floods in certain regions.

Location Observation 24hr Change (%) Percent Normal (%) Elevation (ft)
Priest Lake At Outlet Nr Coolin Id
Idaho ID 12393000
3 ft -0.66 99 2437.04
Coeur D Alene Lake At Coeur D Alene Id
Idaho ID 12415500
27 ft -0.29 100 2118.88
Henrys Lake Nr Lake Id
Idaho ID 13039000
15 ft -0.33 103 6457
Milner Lake At Milner Dam Id
Idaho ID 13087900
11 ft -1.61 100 4136.58
Salmon River Canal Co Res Nr Rogerson Id
Idaho ID 13106500
22 ft -0.76 148 5025
Mud Lake Nr Terreton Id
Idaho ID 13115000
3 ft -1.54 106 4774
Mackay Res Nr Mackay Id
Idaho ID 13126000
7 ft 0.29 32 6061
Little Wood Res Nr Carey Id
Idaho ID 13148200
16,950 ac-ft -1.51 183 5100
Cj Strike Res Nr Grand View Id
Idaho ID 13171500
54 ft -0.18 100 2454.34
Lucky Peak Lake Nr Boise Id
Idaho ID 13201500
2,968 ft -0.12 100 3060
Payette Lake At Mccall Id
Idaho ID 13238500
5 ft -0.94 109 4990

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Largest Reservoirs

By water storage capacity

The USA is home to many of the largest dams in the world, providing essential services such as water storage, hydropower generation, and flood control. Among them, Oroville Dam stands out as the tallest dam in the United States, located in northern California. Another famous dam is the Hoover Dam, located on the Colorado River between Arizona and Nevada. It is a major tourist attraction and an engineering marvel of the modern era, providing hydropower and water storage for millions of people.

Other notable dams in the USA include the Glen Canyon Dam in Arizona, which is the second-highest concrete arch dam in the country, and the Grand Coulee Dam in Washington, which is the largest electric power-producing facility in the USA. These dams are a critical component of the country's infrastructure, providing essential services for the economy, society, and the environment.

Reservoir Storage Capacity (acre-ft)

Drought Levels

By water storage capacity

The number and distribution of dams and reservoirs in the USA have been significantly impacted by climate change. The changing climate has led to changes in precipitation patterns, increased evaporation rates, and more frequent and severe droughts and floods in certain regions. These factors have influenced the management and operations of dams and reservoirs across the country.

Reservoir Storage Capacity (acre-ft) Percent of Normal (%)

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