Skip to main content
The Espada Aqueduct, running over the Piedras Creek
Main Category
Sub Category
Date Created
Location Country
29.304556, -98.469444
San Antonio Missions National Historical Park
Espada Rd
San Antonio

This is one of the earliest uses of engineered water supply and irrigation systems in the United States. The first of eight original acequias was under construction in 1718 and two are still in operation. The remains of one are visible on the grounds of the Alamo. The Acequias of San Antonio are among the earliest engineered water supply and irrigation systems recorded in the United States. The Acequias served an integral role in the growth and stability of the San Antonio community for nearly 200 years. The eight canals, totaling 15 miles in length, were built by Spanish settlers who learned the technique from the Moors. Each acequia was a complicated system of storage dams, floodways, control gates, canals, sluices, and distribution ditches. Sections of the Acequias continue to operate today. A portion of the San Juan Acequis has been renovated and provides irrigation for fields south of San Antonio. The Espada Acequia still flows vigorously and serves the Mission Espada and nearby fields. The first 200 to 300 feet of the Upper Labor Acequia are intact, and are used by the city zoo for its waterfowl displays.


Resources 1. Gross, Kevin J. and Guillermo Mendez. "An Examination of Acequias, Wells, and Cisterns in San Antonio, Texas, ca, 1850-1930," pp. 242-254 2. McLean, B.J. The Romance of San Antonio's Water Supply and Distribution. San Antonio Printing: San Antonio, 1924.
Image Credit
Courtesy: Flickr/Amy the Nurse (CC BY-ND 2.0)
Image Caption
The Espada Aqueduct, running over the Piedras Creek

We hope you enjoyed this essay.

Please support America's only magazine of the history of engineering and innovation, and the volunteers that sustain it with a donation to Invention & Technology.


Stay informed - subscribe to our newsletter.
The subscriber's email address.