Twin Bridges is a small unincorporated community on U.S. Route 50 near the Desolation Wilderness in El Dorado County, California. It is located west of Echo Summit, at an elevation of 6115 feet (1864 m). It has a population of 14 people according to census figures, however, as of 2008 the road sign lists the population at 10. Right after the town, the U.S. 50 eastbound starts a steep ascent to Echo Summit passing Sierra-at-Tahoe ski resort shortly before the summit.