Small but welcome piece to 101 puzzle

The Sonoma-Marin Narrows, a four-lane stretch of traffic-prone Highway 101, lies at the northern, sparsely-inhabited fringe of Marin County. Marin transportation officials have prioritized the densely populated southern end of the county for transportation projects.

In 2004, Sonoma County voters passed the Measure M sales tax to help pay for highway widening. Construction started in Santa Rosa, going north to Windsor and south to the northern edge of Petaluma before the borrowing capacity of Measure M ran out.

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