Last piece of Marin-Sonoma Narrows project in Sonoma breaks ground

By Mark Prado

Wednesday saw the groundbreaking of the last segment of the Marin-Sonoma Narrows project in Sonoma County.

MTC has long identified improvements to the U.S. 101 corridor in the North Bay as an important regional priority, including the Marin-Sonoma Narrows, where lanes narrow from three to two creating bottlenecks.

MTC have been a big supporter of the Highway 101 Marin Sonoma Narrows project. MTC contributed $15 Million in re-purposed federal earmarks, another $15.4 Million in STP funds and $23 Million in RTIP funds, and monies from the Prop 1B Corridor Improvement program.

The segment that broke ground Wednesday is in Petaluma, 3.3 miles and will take about three years to complete. Marin County is pursuing funding to complete its final piece.

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