FAIRFIELD — Jameson Canyon’s ever-changing landscape has changed again and commuters between Napa and Fairfield seem to take the new look in stride.
Commuters on Highway 12 through the canyon on driving on more new road than ever. They still have only one lane in each direction for the most part, though. The traffic switches are designed to get them off the old pavement so workers can tear it up and replace it.
All of this is just another step to the ultimate goal: a four-lane Highway 12, two lanes going in each direction, from Interstate 80 to Highway 29.
Efforts to create this new Highway 12 have been going on for more than a year. The challenge has been to transform the highway while keeping traffic moving through what is in effect a six-mile-long construction zone.
The latest changes are in the Napa County portion of Highway 12. Drivers on Monday and Tuesday seemed to be handling the new look without major problems, though the switches from old road to new in a couple of sections have slight curves. Message signs along the road warn motorists of the switches.
Eastbound Highway 12 traffic has it the best, since it has the longest stretch of smooth, new roadway.
Meanwhile, workers in Solano County continue to make progress on slicing off a huge portion of hillside and turning it into a terraced roadway with a series of concrete retaining walls stretching several stories high. Much of the hill is now gone, with rocks being ground up into aggregate for the base of the new roadbed.
The state Department of Transportation estimates that the $139 million Jameson Canyon project will be completed in about a year.
Reach Barry Eberling at 427-6929 or email@example.com. Follow him on Twitter at www.twitter.com/beberlingdr.
This version updates to reflect as assessment of traffic Tuesday through the construction zone.