Summary

In 1996, the USBR, Mid-Pacific Region, Northern California Area Office began the Willows Flow Monitoring Program to monitor, in near real-time, 85% of the Sacramento River Diversions from Shasta Dam to Sacramento.  One of the sites identified for flow monitoring was the Glenn-Colusa Irrigation District (GCID) canal at the Stoney Creek Siphon.  At question was the application and functionality of the Acoustic Doppler Flow Meters (ADFM) inside the siphon channels.  Data were relayed through a Supervisory Control and Data Acquisition (SCADA) system provided by Sierra Controls of Carson City, Nevada.