The lake is operated at a nearly constant level, as the turbine discharge is matched with the inflow from the Lake Lyndon B. Johnson plant. Except during floods, the only water released from Lake Marble Falls to Lake Travis immediately downstream is through the turbines for power generation.

Which of the Highland Lakes are constant level?

Lake LBJ, in general, has the most constant water levels of all of the Highland Lakes. Surrounding towns include Marble Falls, Granite Shoals, Kingsland, Horseshoe Bay, Highland Haven, and Sunrise Beach.

Which lakes are constant level in Texas?

Lake LBJ is the only true constant-level lake in the chain.