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The Water Management Section of the Seattle District Corps of Engineers
is responsible for monitoring and/or regulating several rivers in the
Puget Sound region. This has required the implementation of a complex
computer network to collect data from multiple locations and gages every
hour. The Water Management Section compiles data from several of its
water control projects. The data that are provided here come from those
projects and a variety of other sources including:
Information for other basins (Cedar, Nisqually, Nooksack, Olympic Peninsula, Snohomish, Stillaguamish, and Yakima) can be found from the following client sites:
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Connecting the waters of Lake Washington, Lake Union, and Salmon Bay to the tidal waters of Puget Sound,
the Lake Washington Ship Canal
and Hiram M. Chittenden Locks allow recreational and commercial vessels to travel to the docks and warehouses of Seattle's busy fresh water harbor.
Howard A. Hanson Dam is a U.S. Army Corps of Engineers flood risk management dam located
near the headwaters of the Green River in King County. It's primary purpose is flood risk management in the winter and fish enhancement in the summer.
Mud Mountain Dam is a flood risk management dam protecting the lower White and
Puyallup River valleys from flooding by holding back water from heavy rains and melting snow in its reservoir, managed by the U.S. Army Corps of Engineers,
Seattle District. Visitors to the facility, located on the White River near Mt. Rainier in Washington State, can view the dam, picnic, hike, bike or ride their
horses in a scenic woodland setting.
Chief Joseph Dam is the second largest hydropower producing dam in the United
States. It is the largest hydropower producing dam operated by the US Army Corps of Engineers.
Albeni Falls Dam was authorized for construction under the Flood Control Act of 1950.
This Act was signed by the United States Congress in response to a great flood that swept over the river valleys of the Columbia basin in 1948. Albeni Falls Dam was
built from January 1951 to December of 1955 at a total cost of $34 million. Today, it produces over 200 million kilowatt hours of electrical energy each year.
Libby Dam Project is a multi-purpose water resource development. Its purposes are
flood reduction, hydropower, recreation, and environmental stewardship. The dam is operated by the United States Army Corps of Engineers. Forty-eight miles of the reservoir
lie within U.S. borders, the other 42 miles are in Canada.
The Chehalis River Basin is the second largest basin in Western Washington. It is bounded on the west by the Pacific Ocean,
on the east by the Deschutes River Basin, on the north by the Olympic Mountains, and on the south by Cowlitz River Basin. The basin includes portions of Grays Harbor, Lewis, Mason, and Thurston Counties and the Cities
of Aberdeen, Centralia, Chehalis, and Hoquiam, and the Confederated Tribes of the Chehalis Reservation.
The Skagit River is a river in southwestern British Columbia in Canada and northwestern Washington in the United States, approximately 150 mi (240 km) long. The river and its tributaries
drain an area of 3,200 square miles of the Cascade Range along the northern end of Puget Sound.
The Flathead River, in the northwestern part of the U.S. state of Montana, originates in the Rocky Mountains near Glacier National Park and flows southwest into Flathead Lake,
then after a journey of 158 miles (254 km), empties into the Clark Fork. The river is part of the Columbia River drainage basin, as the Clark Fork is a tributary of the Pend Oreille River, a Columbia River tributary.
