Site information:

N side of Fr. Junipero Serra Trail in Mission Trails Regional Park near NE entrance, San Diego

Fr. Junipero Serra Trail is closed to vehicle traffic, so a short walk is necessary to get to the dam.

32.839493,-117.043139

Plaque information:

State plaque is located at the parking lot trailhead.  Private plaque at dam site.

32.839654,-117.041818

State plaque text:

Mission Dam and Flume

After many attempts dated back to 1774 to provide a reliable source of water for crops and livestock for Mission San Diego de Alcala, a dam and flume system was finished between 1813 and 1816 by Indian laborers and Franciscan Missionaries to divert waters of the San Diego River for a distance of 6 miles. The aqueduct system continued in existence until 1831 when constant flooding caused the dam and flume to fall into disrepair. They were not repaired due to secularization of the missions.

First registered Dec. 6, 1932. Plaque placed by the State Department of Parks and Recreation in cooperation with Mission Trails Regional Park, City of San Diego, and Squibob Chapter, E Clampus Vitus May 2 1992

Private plaque text:

Old Mission Dam
Built 1813-1816
A part of the first permanent irrigation project by padres and Indians in California. 

Marker placed by the San Diego Chapter, Daughters of the American Revolution.  May 17th, 1941

Registered 12/6/1932