20.7' - Major flood stage. Homes in far northwest marana downstream of raised levees could see major damage.<br><br>19.5' - Moderate flood stage. Far northwest marana downstream of raised levees threatened. Homes in this area may be evacuated as a precaution. Bridges on Sanders Road, Trico Road, and Trico-marana Road will be closed due to overtopping.<br><br>18.5' - Minor flood stage. Water reaches gravel pits between rillito river and Cortaro Road in northwest tucson. Ina Road bridge closed as a precaution.<br><br>