A couple of closures along the Highway 101 corridor in Sonoma County top the list of projects in the North Bay this week. All of the work is weather dependent and could be cancelled if we get rain this week.

Sonoma County:

Old Redwood Highway will be closed tonight at Highway 101 in Petaluma as crews work on a new overpass. The overpass and all ramps at the interchange will be closed from 9 p.m. until 5 a.m. Monday morning, Caltrans said.

On Monday night, Caltrans will switch traffic to the new bridge at Old Redwood Highway and close the old bridge. During this work, Old Redwood Highway and all ramps at the interchange will be closed from 10 p.m. Monday night to 5 a.m. Tuesday morning.

Once the new bridge is open, the northbound and southbound diagonal onramps will be closed for four to six months, Caltrans said. The ramp closures are necessary to build new onramps that will connect to the realigned roadway.
The ramp closures are expected to cause travel delays and additional time should be allowed when traveling through the area, Caltrans said.

Demolition of the old bridge will require full freeway closures in March.

Southbound Highway 101 at Airport Boulevard will be closed from 11 p.m. to 5 a.m. Monday and Tuesday nights as part of construction of the new Airport Boulevard interchange.

During the closure, drivers will exit on Shiloh Road, and turn left. Turn right at Old Redwood Highway, turn right on Fulton Road and continue to the southbound Highway 101 onramp. Both the southbound Airport Boulevard onramp and offramp will be closed during the construction.

Northbound Highway 101 at Airport Boulevard will be closed from 11 p.m. to 5 a.m. both Wednesday and Thursday nights.

The detour will involve an exit on Fulton Road, a left turn onto Old Redwood Highway and a left turn on Shiloh Road to the northbound 101 onramp.

The construction work and closures are weather dependent, Caltrans said, and could be rescheduled.

On Monday, a crew will be asphalt patching on Adobe Road between Highway 116 and Frates Road. Later in the week asphalt repairs are scheduled for Petaluma Hill Road and Pepper Road. Cal Fire crews will continue with roadside brushing next Tuesday and Wednesday along Stewarts Point Skaggs Springs Road and Barnett Valley Road.

On Monday and Tuesday the contractor will be replacing center line and fog line striping on Pepper Road, from Mecham Road to Stony Point Road. Wednesday through Friday the contractor is scheduled to apply centerline strip to both South and North Fitch Mtn Roads. These are moving operations with some minor delays, traffic controls will be in effect.

Fort Ross Road remains closed 1.7 miles from the town of Cazadero.  Next week crews will be setting stringers for the first span – late in the week they may begin driving pile for the next span. The area around the slide is very unstable – aside from the crew working to get the road restored no one is allowed to enter beyond the k-rails and barricades. Signs are posted at both ends.

Contract projects for next week include continued work on the Porter Creek Bridge Replacement Project. Only minor traffic delays are expected. And various activities will continue at the intersection of Old Redwood Highway and Mark West Springs Road in Larkfield as part of the Sutter Hospital Intersection Improvement Project.

On Main Street in Penngrove crews will be removing and replacing AC at the railroad tracks.  This will be Monday and Tuesday 8 a.m. – 5 p.m.  Only southbound traffic will be allowed in to town in whichever lane is open.  There will be a detour set up for northbound traffic from Old Redwood Highway to go to Adobe Road and turn right, then right again on Main Street to go south in to town.

On Fulton Road at the railroad tracks crews will be removing and replacing asphalt Wednesday through Friday.  Hours will be the same as Penngrove, 8 a.m. – 5 p.m. One way reversing traffic control will be in effect.  Delays of up to 30 minutes due to the large traffic volume on this road is anticipated.

Trench work will begin on Seed Farm Drive in Rohnert Park on Monday. During the trenching activity, the contractor is also working on portions of Avram Avenue and Santa Alicia replacing water line services. Traffic controls will be in place between 8 a.m. and 4:30 p.m. daily Monday through Friday. Alternate routes are advised.

Lake County:

Route 20  ‐ Upgrades to the changeable message sign near Catholic Church Road will continue.  Work hours are 6 a.m. to 5 p.m., weekdays.  One-way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 20 ‐ Upgrades to the changeable message sign just east of the junction of Routes 20/53 will continue.  Work hours are 6 a.m. to 5 p.m., weekdays.  Westbound traffic will be restricted to one lane.  Motorists may experience minor traffic slowdowns.

Route 53 ‐ Upgrades to the changeable message sign just south of the junction of Routes 20/53 will continue.  Work hours are 6 a.m. to 5 p.m., weekdays.  One-way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Mendocino County:

Route 1  ‐ AT&T of Fort Bragg has been issued a Caltrans Encroachment permit for utility repairs near Lake Street beginning Monday.  Work hours are 7 a.m. to 5 p.m., weekdays.  One-way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 1  ‐ Bridge repairs at the Garcia River Bridge will continue.  Work hours are 24 hours per day, weekdays.  One way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 1  ‐ Replacement of the Greenwood Creek Bridge will continue.  One-way traffic control with a temporary signal will be in effect 24 hours per day, 7 days per week.  Motorists should anticipate 5-minute delays.

Route 1  ‐ Guardrail repairs at various locations from Elk to Navarro Ridge Road will continue.  Work hours are 7 a.m. to 6 p.m., weekdays.  One-way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 1 – Bridge repairs at Blue Slide Gulch will continue.  Work hours are 24 hours per day, weekdays.  One way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 1 ‐ Replacement of a culvert with a bridge at Dunn Creek will continue.  One-way traffic control with a temporary signal will be in effect 24 hours per day, 7 days per week.  Motorists should anticipate 5-minute delays.

Route 20 ‐ Bridge repairs at the East Fork Russian River Bridge will continue.  Nighttime work hours are 7PM to 7AM, Sunday evening through Friday morning.  One way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 20 ‐ Bridge repairs at the Cold Creek Bridge will continue.  Nighttime work hours are 6 p.m. to 11 a.m., Sunday evening through Friday morning.  One way traffic control will be in effect.  Motorists should anticipate 5-minute delays.

Route 101 ‐ Caltrans will perform slide repairs near the Korean War Veterans Memorial Bridge (near Frog Woman Rock). Northbound traffic will be restricted to one lane 24 hours per day, 7 days per week.  Motorists may experience minor traffic slowdowns.

Route 101 ‐ Upgrades to the message sign near Monica Lane will continue.  Work hours are 6 a.m. to 5 p.m., weekdays, and 6 a.m. to 11 a.m., Saturday. One-way traffic control will be in effect. Motorists should anticipate 5-minute delays.

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