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The level of the lake can vary dramatically—with an over 96-foot range between its historical high and low—depending on the amount of rainfall in the Colorado River basin upstream. [19] The historic high level on the lake was 710.4 feet (216.5 m) above msl on December 25, 1991, a little less than four feet below the dam's top/spillway at ...
Lake Lyndon B. Johnson (more commonly referred to as Lake LBJ and originally named Lake Granite Shoals) is a reservoir on the Colorado River in the Texas Hill Country about 45 miles northwest of Austin. The reservoir was formed in 1950 by the construction of Granite Shoals Dam by the Lower Colorado River Authority (LCRA).
The Lower Colorado River Authority (LCRA) built the dams to manage floods and generate hydroelectric power in the 1930s and 1940s. Lady Bird Lake (formerly Town Lake) and the respective Longhorn Dam are sometimes considered the seventh "honorary" lake and dam of the Highland Lakes despite being commissioned and managed by the City of Austin ...
LCRA's mission is to enhance the lives of the Texans it serves through water stewardship, energy and community service. LCRA provides public power, manages the lower Colorado River, builds and operates transmission lines, owns public parks, and offers community services. [2] LCRA does not receive state appropriations or have the ability to levy ...
The lake serves primarily as a power plant cooling pond for the Sim Gideon Power Plant operated by the LCRA and the Lost Pines Power Project 1, owned by GenTex Power Corporation, a wholly owned affiliate of the LCRA. Lake Bastrop also serves as a venue for outdoor recreation, including fishing, boating, swimming, camping and picnicking, and is ...
Lake Austin, formerly Lake McDonald, is a water reservoir on the Colorado River in Austin, Texas. The reservoir was formed in 1939 by the construction of Tom Miller Dam by the Lower Colorado River Authority. Lake Austin is one of the seven Highland Lakes created by the LCRA, and is used for flood control, electrical power generation, and ...
Lake LBJ ‒ as it is more commonly referred to ‒ provides cooling water for the Lower Colorado River Authority's Thomas C. Ferguson Power Plant along Horseshoe Bay. Wirtz Dam was originally named Granite Shoals Dam until 1951 when it was renamed in honor of Alvin J. Wirtz who had been instrumental in the formation of the LCRA.
The Spillway Elevation is 714 feet (218 m) above Mean Sea Level (MSL). LCRA begins to open floods gates when water reaches 681 feet above MSL. At 681 feet (208 m) above MSL, discharge capacity exceeds 130,000 cubic feet per second (3,700 m 3 /s) as the lake rises.