Yuba 20 Corridor Roadway Projects

Latest Construction News

LOOKING AHEAD: A Steady Dose of Rock Blasting  

It’s hard to believe we’re approaching the eighth rock blasting operation over a month’s time for the Browns Valley project.

The next blast is scheduled between 10 a.m. and 2 p.m. Monday, August 10. Traffic delays have been up to 30 minutes during the blasting operations.

Right now, crews have the routine pat – setting rigs to drill holes in the hard rock, loading the holes with explosives, connecting the explosives with wiring and setting off the blast. Heavy equipment then comes up to excavate and haul away the loosen material to a fill area down the highway at the Monument Trail hill.

A new embankment is being created for construction of a wildlife undercrossing. Crews during the week of August 10 are planning to start erecting forms to construct the walls and roof for the undercrossing.

Caltrans has built similar passages in other areas such as State Highway 89 in Sierra County. These have become popular routes for wildlife, including bears and mountain lions, to cross safely beneath the roadway.

In an article published in the February 2004 issue of Biological Conservation, researchers studied 15 passageways built in Southern California and reported: “We found that passages were used by a variety of species, including carnivores, mule deer, small mammals and reptiles. Many types of undercrossings were utilized, including passages beneath highways, even when not originally designed for wildlife, can provide important save avenues for animals to cross roads.”

Meanwhile on the Timbuctoo project east of the Yuba River, the contractor continues to do bridge, earthmoving and excavation work off the main roadway.

We are reminding motorists to allow extra travel time when driving through the Browns Valley and Timbuctoo construction areas. Daytime traffic is close to normal now. That means it may take up to an extra 40 minutes to travel through the area during peak commute times.

Please let your friends, family members, neighbors, associates and others know they can receive FixYuba20 construction updates emailed to their inbox every week by signing up with Caltrans Public Information Officer Gilbert Mohtes-Chan at:

Gilbert.Mohtes-Chan@dot.ca.gov

Unexpected schedule changes may occur. For current information on roadwork, delays, road conditions and emergency closures, call the voice-activated Caltrans Highway Information Network (CHIN) at 1-800-427-7623 (ROAD) or visit Caltrans’ “QuickMap” 

UPCOMING LANE CLOSURES

August 10 – 14

State Route 20 (Timbuctoo, Yuba County) between the Parks Bar Bridge over the Yuba River and Lower Smartsville Road: Motorists can expect intermittent one-way traffic control from 6 a.m. to 4 p.m. Monday through Friday for roadway excavation and earthmoving work.

August 10 – 15

State Route 20 (Browns Valley, Yuba County) between Marysville Road and Timbuctoo Road: Motorists can expect intermittent one-way traffic control from 5:30 a.m. to 4 p.m. Monday through Thursday and 5:30 a.m. to 3 p.m. Friday and Saturday for roadway excavation, drainage and grading work.

August 10

State Route 20 (Browns Valley, Yuba County)  between Stacey Ann Drive and Libby Lane: Motorists may expect rock blasting activity sometime between 10 a.m. and 2 p.m. Monday. Motorists can expect up to a 30-minute delay to ensure all explosives are discharged and the roadway is safe for travel. Motorists are advised to use alternate routes to avoid delays.

About the Projects

Highway 20 Timbuctoo

Location

From the Parks Bar Bridge at the Yuba River east of Smartsville Road

What We Are Doing

  • Upgrade a two-mile section of roadway
  • Straighten curves on a section of the highway
  • Widen segments of highway to create uniform 12-foot wide lanes
  • Widen shoulders to a standard 8-foot width
  • Construct a new bridge on the realigned section of highway
  • Increase sight distances for motorists traveling on the highway

Project Cost

Total cost is estimated at $55.4 million in state and federal funds.

Project Schedule

Begin Construction:  Spring 2020
Finish Construction:  Winter 2022

 

Highway 20 Browns Valley Project

Location

Marysville Road to the Parks Bar Bridge

What We are Doing

  • Resurface, restore and rehabilitate a 4.5-mile section of roadway
  • Widen shoulders to a standard 8-foot width
  • Construct a new Dry Creek Bridge that meets current design standards and has a multi-use pathway
  • Straighten the curve between Stacy Ann Drive and Sicard Flat Road
  • Flatten the slope of the roadway between Valhalla Way and Digger Pine Lane

Project Cost

Total cost is estimated at $56.1 million in state and federal funds, including $5.7 million in Senate Bill 1 funds.

Project Schedule

Begin Construction:  Spring 2020
Finish Construction:  Winter 2022

 

Highway 20 Loma Rica Project 

Location

Loma Rica Road to Spring Valley Road

What We Are Doing

  • Rebuild 4.4 lane miles of highway
  • Widen shoulders to 8 feet
  • Install centerline rumble strips
  • Extend, replace and upsize culverts
  • Provide a 20-foot clear recovery zone
  • Flatten roadway humps to provide adequate sight distance

Project Cost

Total cost is estimated at $16.8 million in federal and state funds, including funding from Senate Bill 1, the Road Repair and Accountability Act of 2017

Project Schedule

Begin Construction:  Spring 2019
Finish Construction:  Winter 2020

Project Contacts

Johny Tan Project Manager
(530) 741-5120
Johny.Tan@dot.ca.gov

Gilbert Mohtes-Chan Public Information Officer
(530) 741-4571
Gilbert.Mohtes-Chan@dot.ca.gov