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Traffic Advisories

NNOWe understand your time is precious, so we are planning to provide you with up to date information so you have greater control over your drive, with insights that allow you to discover the best route so you can save time.  

We are bringing you the traffic advisory weekly updates on currently known roadway and related projects, and private utility work (based on street encroachment permits), to provide you an opportunity to look ahead, plan your travel times and check delays due to various street activities. 




  Ralston Avenue (Alameda to east of Cipriani) 

  May 22-June 23   9:00Am-3:00pm
  June 26- August 18    8:00am-4:00pm

  Saturday, September 30th  7:00AM-9:00PM
  August 19-end of November   9:00am-3:00pm

  Lane Closure - west bound #2 (right) Lane

PG&E will replace 3,700 feet of their gas pipeline on Ralston Avenue between Alameda de las Pulgas and Cipriani Boulevard. The replacement of a 4-inch pipeline with a 6-inch pipeline is part of an effort to increase capacity of Belmont’s natural gas system.

TRAFFIC ADVISORY: Lane closure on westbound Ralston Avenue from Alameda de las Pulgas to 1000 feet east of Cipriani Boulevard through the end of September during non-commute hours. Please anticipate delays and possible lane closures. Be sure to allow extra time to get to your destination. Alternate routes are advised.

For information regarding this project, please contact the PG&E representative:

Scott Hart | 650-598-7449 or 


  Ralston Avenue (@ Davis Drive) 
  June 1-October 27
  9:00AM-3:00PM M-F           
  Lane Closures   

 Turner Construction, a contractor for the CSUS project, will be working on intersection  improvements at the Ralston Ave./Davis Dr. intersection.  Traffic control will be in place.  Please anticipate minor delays. 


  Ralston Avenue @ Cipriani- Cipriani @ Pullman
  9:00AM-3:00PM M-F 

Road Closures   

PG&E contractors will be closing northbound and southbound at different intervals at Cipriani Boulevard at Ralston Avenue, and Cipriani Boulevard at Prindle Road as part of their gas pipeline repair project from 9:00 a.m. to 3:00 p.m.

Detours will be in place as follows:
Westbound Ralston right turn lane onto northbound Cipriani will be closed. Use detour at Pullman Avenue, just east of Cipriani.
Eastbound Ralston left turn lane onto northbound Cipriani will be closed and traffic will be detoured to Pullman Avenue.              


 Talbryn Drive @ Arden Lane
  Oct. 24-25


The Public Works Streets Division will be conducting asphalt repairs on Talbryn Drive at Arden Lane on Tuesday, October 24th and Wednesday, October 25th.  Traffic control will be onsite.      



  Masonic Way (Granada St. to Old County Rd.)
  Oct. 02-Oct. 31


PG&E will be trenching on Masonic Way as part of the PG&E Undergrounding project.  Masonic will be reduced to one lane of traffic.  Two-way traffic will be maintained at all times.  Traffic control will be in place and flaggers will be onsite.  



  South Road (Btwn Vannier Dr and Middle Rd)
  Thursday, Oct. 05-Nov. 30


Mid-Peninsula is working on their Capital Improvement Project for their water service.  Location of work: On South Road between Vannier Drive and Middle Road, and on Middle Road between South Road and Notre Dame Ave. Work will take place in this vicinity through the end of November. One lane will be closed at times. Two-way traffic maintained at all times. Flaggers will be onsite.  Visit Mid-Peninsula's webpage for more  info: