Paving Work Ahead for State Route 174 Safety Improvement Project


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District:  District 3 - Marysville
Contact:  Raquel Borrayo
Phone:  (530) 701-5209



GRASS VALLEY – Paving work is scheduled next week on the State Route 174 (SR-174) safety improvement project between You Bet Road and Maple Way in Nevada County.  

Paving work to widen SR-174 on the east side of the highway is set to begin Monday, September 27. Some driveways and local road entrances may have temporary signed and delineated detour routes for highway access during widening work. Driveway and local road access may also be intermittently impacted for 30 minutes at a time while paving work is occurring.

Should work progress according to schedule, the roadway may be temporarily re-striped to the final anticipated configuration by the end of the week, with traffic shifted to the middle of the newly widened highway. Crews anticipate placing a final layer of asphalt through the entire project area in mid-October, delivering a smooth and widened surface for motorists.

Motorists are reminded that one-way traffic control will be in effect between 6 a.m. and 7 p.m. Crews are anticipated to work six days a week, Monday through Saturday, to complete work this autumn. Motorists are advised to anticipate 20-minute delays when traveling through the construction zone area. The schedule is subject to change based on weather, poor air quality, availability of equipment or other unexpected events.

The $27.1 million safety project, which began in August 2020, is realigning several curves, widening shoulders, adding a southbound left-turn pocket at Greenhorn Access Road and improving the clear recovery zone for errant drivers to regain control. DeSilva Gates Construction of Sacramento is the primary contractor for the project and completion is anticipated in late November.

Flaggers at each end of the construction zone will be utilized along with a pilot car. Motorists are reminded that pilot vehicles are to be followed at all times within the project zone for the safety of construction crews and travelers. Failure to follow pilot vehicles may result in a $220 citation with traffic fees doubled in construction zones. The California Highway Patrol will be on site, monitoring traffic safety during construction.

Weather or unexpected events may delay or prolong the work. Caltrans advises motorists to “Be Work Zone Alert.” The department will issue construction updates on Twitter @CaltransDist3 and on Facebook at CaltransDistrict3. For real-time traffic, click on Caltrans’ QuickMap or download the QuickMap app from the App Store or Google Play.