Lake Lyndon B. Johnson Boat Ramps

6 boat launches are mapped on Lake Lyndon B. Johnson in Llano County, Burnet County, Texas.

Lake Lyndon B. Johnson facts

Surface area5,941 acres
TypeReservoir (mapped as Lake Lyndon B Johnson)
Average depthabout 23 ft (normal storage ÷ surface area)
Shoreline lengthabout 45.9 miles
Surface elevation825 ft above sea level
DamWirtz Dam, completed 1951
Dam size118 ft high, 5,687 ft long, earth dam
Dam purposesIrrigation, Recreation, Hydroelectric
Dam ownerLOWER COLORADO RIVER AUTHORITY (Local Government)
Normal storage134,353 acre-feet
Impounded streamColorado River

Sources: USGS National Hydrography Dataset (public domain); HydroLAKES v1.0 (Messager et al. 2016, CC BY 4.0); U.S. Army Corps of Engineers National Inventory of Dams (NID ID TX00986). Matched to this page by name and location; modelled values are approximate. See all sources.

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