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Water Main Rehabilitation Project: University Mound Reservoir to 3rd Street

Overview

Critical upgrades to a 24-inch water main are planned, running from University Mound Reservoir South to 3rd Street.

The project will primarily use a trenchless method, called Cured-In-Place Pipe (CIPP) to rehabilitate water mains that are nearly 90 years old. This entails lining the pipe to restore its strength and extend its service life. Learn more about the lining process at sfpuc.gov/NewWaterMains.

Water main upgrades are planned for:

  • Bacon Street between Bowdoin Street and Egbert Avenue
  • Phelps Street between Egbert Avenue and Vesta Street 
  • Williams Avenue between Vesta and Neptune streets 
  • Neptune Street between Williams and Thornton avenues 
  • Thornton Avenue between Neptune and 3rd streets

Construction Look Ahead*

Week of August 31

  • Potholing (locating underground utilities)
    • Phelps Street between Carroll Avenue and Vesta Street
    • Williams Avenue between Vesta and Neptune streets
    • Neptune Street between Williams and Thornton avenues 
    • Thornton Avenue between Neptune and 3rd streets
  • Construction Start: July 2026
  • Construction End: October 2027
  • Project Phase: Construction