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Donner Pass Road Improvements

Construction Update

  • July 1, 2020  - Traffic Delays and Road Closures Scheduled - Beginning on July 6 running thru October 15, Donner Pass Road from Rainbow Bridge to the Town of Truckee Limits , will be closed to all traffic from 7:00 am Monday- 5:00 Friday. The road will be open with one-way traffic control on the weekends. 
  • June 19, 2020 - Traffic Delays and Road Closures Scheduled - Beginning Monday, June 22nd, there will be one-lane traffic control with 20-minute delays from Donner Summit east to the Town of Truckee limits. Flaggers will be present to with traffic controls throughout the project.                                                              
  • May 18,2020 - Preliminary construction activities will begin the week of May 25, 2020.  Construction scheduled for the summer seasons of 2020 and 2021.  To receive regular updates as they become available, please subscribe to the Alert Center for this project at

Project Description

This project will rehabilitate pavement and widen shoulders for bike lanes on 6.54 miles of Donner Pass Road from I-80 Exit 174 in Soda Springs, CA to the Truckee City limits. Selected pullouts will also be paved. Segments N1, N2, N4 and N5 lie in Nevada County, and Segment P3 is in Placer County (see map). The project will not include any work on the Rainbow Bridge.

Project Map

Map of Project Area

Anticipated Timeline

Advertise: Fall 2019
Construction: Summer 2020 - Fall 2021

The construction schedule is currently as follows, but subject to change:
2020 Construction Season:
  • Utility Locates
  • Tree removal
  • Rock cut excavation/blasting
  • Drainage and culvert work
  • Retaining Walls
  • Roadway/shoulder/ditch excavation
  • Topsoil/mulching
2021 Construction Season:
  • Pavement recycling and new pavement placement
  • Install new curb
  • Install new guardrail
  • New signage and striping
  • Placing seeding and mulch

Project Photos