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Petaluma Highway 101 bottleneck could get worse before getting better

By LORI A. CARTER

THE PRESS DEMOCRAT

The historically congested stretch of Highway 101 south of Petaluma is primed for work that eventually will widen the corridor and provide relief for what is known as

Traffic speeds over the Petaluma Boulevard South Interchange bridge on Monday, April 1, 2013. (CONNER JAY/ PD)

Traffic speeds over the Petaluma Boulevard South Interchange bridge on Monday, April 1, 2013. (CONNER JAY/ PD)

the Novato Narrows bottleneck.

But don’t get too excited, drivers.

The $120 million project, which really is two projects at once, will take three years and include temporary lane closures that at times will squeeze traffic to one lane in each direction.

And even when construction is done, the carpool lanes won’t exist. Funding for them isn’t yet available.

Still, at a groundbreaking ceremony Monday in Petaluma, local officials and transportation experts said starting work on the two projects is a huge step forward in the long-term widening of 101 from Windsor to Novato.

“What a momentous occasion,” said Sonoma County Supervisor David Rabbitt, who represents the Petaluma area. The projects mean a safer highway, better transportation infrastructure and jobs, he said.

Overall, work on the 17-mile Marin-Sonoma Narrows, which Caltrans defines as Cotati to Highway 37 in Novato, is expected to cost $700 million, Caltrans estimates. Thus far, the northernmost and southernmost sections have been completed, leaving the thorny center stretch to be dealt with.

“It may be April Fools’, but it’s no joke that the project is commencing,” said Sonoma County Transportation Authority Executive Director Suzanne Smith. “This has been more than a decade in the making.”

This two-projects-in-one segment includes a $77 million contract for a new Petaluma Boulevard South interchange, new frontage roads and replacement of the dual Petaluma River bridges with one, six-lane bridge to accommodate future carpool lanes.

The nine-mile section between Novato and Petaluma, commonly referred to as the narrows, will be converted from expressway to freeway status by closing uncontrolled access. Wider frontage roads will feature bicycle access.

A $28 million contract will provide for the replacement of the northbound 101 overpass of Lakeville Highway/Highway 116 and widening the southbound span. The construction contracts do not include the previous land acquisition, design and engineering costs.

Construction of the 116 sections is expected to finish in the winter of 2014, with the Petaluma Boulevard South work to be done in the winter of 2015. Ghilloti Brothers and Myers JV won the bids for the projects.

Rabbitt, who serves on the Sonoma County Transportation Authority, called for patience from drivers who are certain to face frustration. “It’s going to be a little trying for the next two, three years and beyond as we work through the construction,” he said.

Petaluma City Councilman Mike Harris stressed that the upcoming work is foundational for eventual carpool, or high-occupancy-vehicle, lanes.

“When these jobs are done, there will be no HOV lanes, but the structures will all be wide enough to accommodate the third lane when the money comes forward,” he said.

“This is definitely exciting . . . These are the first baby steps towards a fix for the Novato Narrows and will eventually give commuters some relief.”

Motorists will notice changes in the next couple of weeks, said Darren Kirby construction superintendent for both projects.

K-rails, the concrete center-line dividers, will be placed soon in the Petaluma Boulevard South interchange area. In a few months, the northbound onramp will be closed. The entire interchange will be moved farther south and redesigned into a “tight diamond configuration.”

Funding for the projects comes from a combination of federal money, state transportation bonds and county Measure M tax revenues.

Petaluma drivers already are dealing with work at 101 and East Washington Street, and soon will face the rebuilding of the 101 interchange at Old Redwood Highway-Petaluma Boulevard North.

Work to widen 101 to six lanes through Sonoma County began a decade ago, when a five-mile stretch of freeway was opened between Highway 12 in Santa Rosa and Wilfred Avenue in Rohnert Park. Since then an additional lane has been added from Windsor to the northern end of Petaluma and major overpasses have been replaced and soundwalls constructed.

When work is completed, 101 will be six lanes from Windsor and through the Novato Narrows to the Marin County line, at a cost of almost $1 billion.

You can reach Staff Writer Lori A. Carter at 762-7297 or lori.carter@pressdemocrat.com.





5 Responses to “Petaluma Highway 101 bottleneck could get worse before getting better”

  1. Jim says:

    Sweet $120 million and three year translates to $400 million and 8 years in real time. Can’t wait.

    At least we’ll have the train to take the congestion from the freeway. That’ll be completed sometime in the next decade or two.

    Thankfully the counties have plenty of money for these projects. Oh wait, no they don’t.

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  2. Boggsman says:

    I’m happy for David Rabbitt, but this is going to 10 years, minimum, and the next 3-4 is going to make a bad situation, worse. Its hard to get fired up.

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  3. John Pendergast says:

    This project should have been finished circa 1991, typical government, a generation late and a billion short. That freeway should be going from three lanes to four right now, not two to three.

    And while we’re at it whose bright idea was it to terminate Hwy 12 at Farmers?

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  4. Dan Drummond Sr says:

    They should’ve waited till the train was running. That would have increased rail ridership and reduced highway congestion. Too late now.

    Neither a wise man nor a brave man lies down on the tracks of history to wait for the train of the future to run over him. ~Dwight D. Eisenhower

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  5. Elephant says:

    As a comment on the title of the article – DUH!

    Two things really get me. Over the past 15 years or more, 101 from Ignacio to Sausalito has been in a constant state of widening and improving. The narrows should have been fixed first. And now this project will cost so much more… if we can beg the federal government for money. Thank you Lynn Woolsey for not even knowing the ball was there, let alone dropping it.

    I was led to believe that the idea was to have three lanes in each direction from Santa Rosa to Highway 37 in Ignacio. But recently, CalTrans has filled in the center divider in Novato, giving them 4 lanes. So IF we ever get three lanes to and from Novato, there will still be a bottleneck northbound there.

    (slaps forehead in sheer frustration)

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