Caltrans is now targeting mid-July for a start on projects along portions of Highway 49 near Auburn and Highway 193 in Newcastle that are expected to result in delays for motorists.

A portion of Highway 49 in the American River canyon below Auburn and known for its tight turns  will be subject to one-way traffic controls starting July 14 as work on a new concrete barrier takes place.

At the same time, one-way traffic controls will also be in effect from July 14 to July 28 as work proceeds to replace a small viaduct near the Newcastle tunnel on Highway 193.

While it was initially reported that there would be full road closures on some days, Caltrans is planning to close just the portion of Highway 193 near the tunnel and the shutdown will be at night. Caltrans spokeswoman Rochelle Jenkins said the closure will start July 14 and last six days. The full road will be closed from 9 p.m. to 5 a.m. over the six-day period.

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