Miles of Aging Water Lines Remain Under San Diego

City and Caltrans crews remained at work in downtown Tuesday, cleaning up the mess after two water main breaks on Sunday closed freeway on-ramps and flooded businesses.

The first break came from a 76-year-old cast iron pipe near 11th and A street, which flooded local businesses and snarled traffic. Some time later, a 62-year-old concrete steel cylinder pipe failed near balboa park.