Overnight Water Main Break Causes Massive Sinkhole in San Francisco
- Massive sinkhole in San Francisco caused by overnight water main break on Fillmore Street
- Water main break affected 16-inch and 8-inch pipes, causing service disruptions
- Crews worked through the night to stabilize situation, unclear how long repairs will take
- No injuries reported from sinkhole or water main break
- SFPUC advises affected residents on what to do if water is milky or cloudy