The San Francisco Public Utilities Commission is in the midst of a huge 15-year program to repair, replace and upgrade critical water infrastructure. Since the bulk of the construction work started in April 2009, more than 11,000 workers have recorded 7.5 million hours without a major injury or lost time accident.It’s a key milestone in the $4.8 billion Water System Improvement Program, one of the nation’s most expensive and complex municipal water improvement efforts. About 85 percent completed, work will continue through the end of 2018. There are 83 separate projects, each with a primary contractor, along with a large
