Construction began Monday on road and median improvements at San Antonio and Middlefield roads, Palo Alto city officials said.
Construction crews will be widening southbound San Antonio Road and adding an additional left turn lane on to Middlefield Road, as well as repaving.
Traffic lanes will close at 9 a.m. and reopen again by 4:30 p.m. to minimize disruptions during commute hours, officials said.
The current work is part of a project that began in November 2011 and will last approximately one year. For more information, go to www.cityofpaloalto.org/sa or call (650) 329-2295.
--Reported by Bay City News