Menard County Surface-Water Monitoring

Science Center Objects

The USGS operates and maintains a continuous discharge monitoring station on the Menard Irrigation Canal near Menard, Texas to assist water managers in balancing multiple water uses.

Noyes Canal

Noyes Canal near Menard, TX

(Credit: Caroline Runge, Menard County Water Control and Improvement District #1. Used with permission.)

The Menard Irrigation Canal was originally constructed by Spanish missionaries in the late 1700s to convey irrigation water from the San Saba River upstream of present day Menard, Texas for crops and livestock. The water right is now held by the Menard County Water Control and Improvement District #1.

The canal is an uncontrolled diversion that has been degraded, modified, and rehabilitated throughout its history. In its current state, the actual diversion volume is unknown. The Menard County Water Control and Improvement District #1 periodically measures flow at 3 different sites downstream of the diversion point.

TCEQ requires adequate monitoring of the diversion to the Menard Irrigation Canal to manage water rights in the San Saba River to meet the needs downstream water right holders.

Real-time Data: USGS 08143990 Noyes Canal at Diversion point near Menard, TX