Traffic will have limited access through these streets during the street resurfacing process. Traffic controls within the construction area will be in place. Normal construction hours are Monday through Friday from 8:00 a.m. to 5:30 p.m.    Roads will be reopened to vehicle traffic and parking at the end of each working day, however, during the construction period, loose gravel and an uneven pavement surface will result from removing the surface asphalt.  To maintain competitive prices, the contractor, is allowed to schedule the work in a cost effective manner which may result in a time lag between repair, required curing times, and resurfacing.  

Comprehensive road rehabilitation encompasses overlay methods that apply structural enhancements to the asphalt layer and improve load-carrying capability. The Town usually applies 1.5 to 3 inches of asphalt concrete overlays to streets with pavements that are in fair condition with mild to moderate levels of base failure.  Before the application of asphalt overlays, roto-milling removes approximately 1 ½ to 2 inches of existing pavement in order for new asphalt pavement materials to fully adhere to the surface. Preparatory work such as asphalt patching, edge milling and utility adjustments will be completed prior to any overlay work. These overlay treatments are at least 3 times more cost effective than traditional reconstruction method and can extend the service life of a pavement 10 to 20 years.

The pavement condition of Portola Valley’s street network is evaluated every 2 to 5 years. The condition survey grades the streets using a rating standard called Pavement Condition Index (PCI) which ranges from 0 to 100 with 100 representing an excellent pavement.

The Public Works Department consider the PCI scores of streets, the timing of public projects for water and sewer infrastructure, and the limited funding when selecting streets for a project. 

If you have any questions about the street resurfacing project, please call  650-851-1700  or email at towncenter@portolavalley.net 

To report concerns or anything that needs to be fixed please report on PVConnect