Measure M Projects
Highway 101 Project #3 - Central
Old Redwood Highway in Petaluma to Rohnert Park Expressway in Rohnert Park
- • Reduce recurrent congestion
- • Upgrade highway facility to current standards
Project Delivery Strategy:
The Environmental Assessment/Environmental Impact Report (EA/EIR) was completed in August 2007. Due to funding constraints, SCTA initiated a phased strategy to deliver the project. The first phase of the project, Phase A was completed in December 2012 and provided for improvements north of Pepper Road to Rohnert Park Expressway. Due to infeasibility, the nortbound truck climbing lane was eliminated as part of the project. Phase B was completed in July of 2013 and provided for completion of the HOV improvements from Old Redwood Highway to just north of Pepper Road. Phase C was completed in 2016 and provides for the ramp improvements at the Old Redwood Highway interchange in Petaluma. SCTA has combined Phase C with the Measure M – LSP program project to replace the Highway 101 overcrossing bridge at Old Redwood Highway. Phase L will provide for landscaping within the State Highway’s right-of-way. SCTA estimates $29.0 Million in Measure M-101 funds and $10 Million in Measure M – LSP funds were used to leverage $102.4 Million in other fund sources. Final expenditure totals will be provided after all phases have been delivered.
Phase A – Highway 101 High Occupancy Vehicle (HOV) Lanes (north of Pepper to Rohnert Park Expressway)
- • Reduce recurrent congestion on Highway 101 by constructing a northbound and southbound HOV lane
- • Upgrade existing freeway to current standards by widening shoulders and ramp improvements
- • Rehabilitate existing roadway
- • Construct auxiliary lanes from Gravenstein Highway (Route 116) to Rohnert Park Expressway
- • Install Intelligent Transportation System devices including closed circuit television cameras, changeable message signs, traffic monitoring stations, and a highway advisory radio system
- • Construct sound walls in Cotati
Central A Status / Schedule
Construction started in December 2009 and was completed in December 2012.
Phase B – Highway 101 High Occupancy Vehicle (HOV) Lanes (Old Redwood Highway in Petaluma to north of Pepper Road)
- • Reduce recurrent congestion on Highway 101 by constructing a northbound
and southbound HOV lane
- • Upgrade existing freeway to current standards by widening shoulders
- • Rehabilitate existing highway
- • Construct northern portion of sound wall from Willow Brook Creek to southbound offramp to Old Redwood Highway in Petaluma
Central B Status / Schedule
Construction started in June 2011 and was completed in July 2013.
Phase C – Old Redwood Highway Interchange in Petaluma
- • Replace the Old Redwood Highway overcrossing bridge with a new 4
lane structure – see Old Redwood Highway LSP project.
- • Reconstruct ramps to Old Redwood Highway, including ramp metering and HOV bypass lanes
- • Complete sound wall at southbound off-ramp to Old Redwood Highway in Petaluma
Central C Status / Schedule
Construction started in February 2013 and completed in June of 2016.
Phase L – Landscaping
- Provide landscaping throughout the State’s Highway right-of-way.
Central L Status / Schedule
Landscaping is not currently programmed. SCTA is seeking funding opportunities for landscaping along the Highway 101 Corridor.
Underlined text indicates completed work.
Funding (in thousands):
* Other funding includes Measure M-LSP ($10 Million), State Bond (CMIA & SLPP), STIP (RTIP),City of Cotati funds ($400K) and City of Petaluma funds ($14,292K).