water main pipeline and cutoff valves - sinkhole - utility workers fixing broken water main (san francisco)

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water main pipeline and cutoff valves - sinkhole - utility workers fixing broken water main (san francisco)

Utility Workers Fixing Broken Water Main (San Francisco)

To see more photos of this repair operation, go to this photo album.

AWWA C515
construction workers
cut-off valves
gate valves
hetch hetchy water system
high-visibility vest
infrastructure
night
reflective vest
repairing
resilient
safety helmet
safety vest
SFPUC
sink hole
utility crew
utility workers
water department
water main
water pipe
working
December 13, 2009
290 Division St, San Francisco, CA 94103, USA