Highway 12 detour June 18
On June 18, southbound traffic on Highway 12 will be detoured onto Madrone Road, Arnold Drive, and Verano Avenue from 9 a.m. to 8 p.m. There will be access to homes and businesses throughout the detour. The detour will allow PG&E to complete an essential tie-in of their transmission lines for the Highway 12 Improvement Project.
Signals on Arnold Drive will be adjusted to improve traffic flow. However, motorists should expect delays of between 15 and 30 minutes.
This is the first of two tie-ins that must be completed by PG&E. The second tie-in, located at Fetters Creek and Highway 12, is scheduled for July 9. It is likely that the same detour method and timing will be used for the Fetters tie-in.
There will be flaggers at each intersection of the detour. California Highway Patrol will be present at the intersections in peak commute hours from 3 to 7 p.m. Drivers will be alerted to the changed conditions with roadside message boards. At 8 p.m. the detour will end, and traffic controls will resume the current practices of alternating traffic with one-way lane closures.
This is a key milestone in the Highway 12 Improvement Project, which will bring pedestrian and bicycle facilities, roadway widening, asphalt pavement replacement, installation of curbs, gutters and sidewalks, and many more upgrades to Highway 12 between Agua Caliente Road and Boyes Boulevard in the Springs area of Sonoma Valley.
Any questions can be directed to Sonoma County Transportation and Public Works at 565-2533.