SAN ANTONIO (AP) — Experts say parts of a dam believed to be from the 1700s and an irrigation system have been dug up at a South Texas park.

The San Antonio Express-News (http://bit.ly/ZZhbCt) reported Friday that recent excavations at Brackenridge Park unearthed waterway features linking the area to the city's Spanish colonial era.

Details were announced Thursday by the San Antonio River Authority and the Witte (WIT'-ee) Museum.

City archaeologist Kay Hindes says the discoveries came about under a contract with the river authority for trailheads and other features of the Museum Reach of the San Antonio River Improvements Project.

Hindes says a team with the University of Texas at San Antonio's Center for Archaeological Research found a portion of the dam during a recent investigative dig.

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Online:

http://www.wittemuseum.org/

http://www.sara-tx.org/

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Information from: San Antonio Express-News, http://www.mysanantonio.com