The Alamo Acequia is one of two originating in what is now Brackenridge Park. Constructed in 1719 to serve Mission San Antonio Valero, later known as the Alamo. Each acequia system began with a diversion dam that raised the water behind it high enough to flow into a cut in the bank above. The dam and acequia was badly deteriorated and could not be restored; however, the locations are delineated on the grounds of the Witte Museum and across the San Antonio River.