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Yankee Jims Bridge over the North Fork American River


Project Description

Placer County Department of Public Works, in cooperation with the Federal Highway Administration and Caltrans, proposes to replace the existing bridge that crosses over the North Fork American River. The existing bridge is structurally deficient based on a Caltrans Bridge Inspection, which prohibits emergency vehicles from using the bridge. The new bridge will increase emergency access and provide a safer connection between Colfax and Foresthill. The existing bridge will be kept in place.

Two bridge alternatives are being considered, each option would be immediately downstream of the existing bridge and would require road and site accommodations to complete construction. 



Key Project Elements

Construct a new two-lane bridge over the North Fork American River

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Improve access for fire and emergency vehicles and increase evacuation capacity

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Explore opportunities to maintain the existing bridge for pedestrian use

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Complete the bridge project with the least amount of environmental impacts

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Project Progress

Notice of Preparation (NOP) for an Environmental Impact Report (EIR)
  • An NOP scoping meeting occurred on Thursday, February 6, 2020 at 3091 County Center Drive in Auburn 

  • To view the NOP Notification please click here

  • The NOP meeting presentation can be downloaded here: PowerPoint presentation

  • To comment on the NOP, please send emails to Laura Perron at by Friday, March 6th  

Moving Forward
  • The project team will analyze options for road improvements to get material and equipment to the project site

  • Technical studies and assessments will begin to evaluate and address environmental factors described in the NOP Notification and summarized in the NOP meeting presentation

  • This website will be updated periodically with project milestones  

Alternative 1

Alternative 2

Features of Alternative 1:


  • Immediate downstream location

  • Welded Steel Plate Girder Bridge

  • Conventional design

  • Lowest profile

  • Construction time: possible over one year

Features of Alternative 2:

  • Immediate downstream location

  • Arch Suspension Bridge

  • More similar in appearance to existing bridge

  • Taller profile due to arches 

  • Construction time: possible under one year


For more information, please contact: Laura Perron at

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