Traffic shift in southern Petaluma
On Friday night, Caltrans plans to switch northbound traffic to the Highway 101 median lanes being constructed south of the Petaluma River Bridge.
Increased highway enforcement today
Santa Rosa Area CHP officers will be working in coordination with Marin CHP officers today in an effort to increase safety along the Highway 101 corridor.
Mess at Old Redwood interchange in Petaluma continues
Traffic and delays at the Old Redwood Highway interchange with Highway 101 in Petaluma will likely persist into next year.
Northbound metering lights go green
Metering lights at northbound Highway 101 onramps in Sonoma County were switched on today, a month after the traffic were turned on at southbound onramps.
Highway 101 closure in N. Sonoma County today
Caltrans has scheduled an emergency closure of southbound Highway 101 in northern Sonoma County Tuesday afternoon.
Hwy. 101-Hwy. 12 interchange closures this week
Caltrans has scheduled nighttime ramp closures at the Highway 101-Highway 12 interchange in Santa Rosa this week.
New Hwy. 101 off-ramp opens in Petaluma
Another small piece of the Sonoma-Marin Narrows Highway 101 project opened this morning. Caltrans said the northbound off-ramp at the new Petaluma Boulevard South/Kastania Road interchange is now open to traffic.
Highway 101 closure in Petaluma tonight
Southbound Highway 101 will be closed at the Petaluma River Bridge tonight from midnight to 4 a.m. and Sept. 19 from 11 p.m. to 6 a.m.
Metering lights switched on in Sonoma County
Caltrans Tuesday morning activated the southbound onramp traffic signals along Highway 101, many of which have sat idle since they were installed more than a decade ago. The lights, some of which were switched on Monday, will be set to solid green for the first week so that drivers can get used to them
New carpool lane in Novato set to open
Caltrans is set to open a 1.6-mile carpool lane Saturday morning on northbound Highway 101 in Novato, another incremental piece of the Sonoma-Marin Narrows highway widening project.