5) Central (Old Redwood Highway in Petaluma to Rohnert Park Expressway)
This project added approximately 6.4 miles HOV lanes in each direction. The project has been split into three phases, A, B, and C.
Phase A includes construction of the HOV lanes from just north of Pepper Road in Petaluma to Rohnert Park Expressway, in Rohnert Park. It also includes auxiliary lanes, soundwalls in Cotati, ramp improvements, a rehabilitation of the roadway north of Railroad Avenue, and intelligent transportation systems, including ramp metering. Phase A is fully funded. Phase A started construction in 2010 and is was completed in 2012.
Phase B includes the construction of the HOV lanes from just south of Old Redwood Highway in Petaluma to just north of Pepper Road. It also includes ramp improvements, a soundwall in Petaluma, and a rehabilitation of the roadway. Phase B started construction in 2011 and was completed in 2013.
Phase C will construct a new Old Redwood Highway (Petaluma Boulevard North) interchange, including a replacement of the Highway 101 overcrossing bridge. The ramps will be re-aligned and provide HOV bypass lanes and ramp metering. This project also proposes to build a portion of the soundwall that connects the Phase B soundwall. Project construction started in Spring, 2013 and is expected to be completed in 2015.
A follow-up landscaping project is planned, but not yet funded.
The environmental document for the Central project can be found at: http://www.dot.ca.gov/dist4/envdocs.htm#101hovorh