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Yolo 80 Corridor Improvements Project

The California Department of Transportation (Caltrans), in collaboration with stakeholders, is building  improvements consisting of express lanes, pedestrian/bicycle facilities, and Intelligent Transportation System (ITS) elements along Interstate 80 (I-80) and U.S. Highway (US-50) from the Solano/Yolo County line through Yolo County, and to West El Camino Avenue on I-80 and Interstate 5 (I-5) on US-50 in Sacramento County.
 
Caltrans, as assigned by the Federal Highway Administration (FHWA), is the lead agency under the National Environmental Policy Act (NEPA) for the Caltrans Yolo 80  project. Caltrans is also the lead agency under the California Environmental Quality Act (CEQA).

map of yolo county project limits

Caltrans, as assigned by the Federal Highway Administration (FHWA), is the lead agency under the National Environmental Policy Act (NEPA) for the Caltrans EA 3H900 Yolo 80 Managed Lanes Project (project). Caltrans is also the lead agency under the California Environmental Quality Act (CEQA).

55-Hour Weekend Closure Schedule 9/5-9/8: 

https://dot.ca.gov/caltrans-near-me/district-3/d3-news/d3-news-release-25-164

Purpose and Need

Purpose

The purpose of the proposed project is to:

  • Ease congestion and improve overall person throughput1.
  • Improve freeway operation on the mainline, ramps, and at system interchanges.
  • Support reliable transport of goods and services throughout the region.
  • Improve modality2 and travel time reliability.
  • Provide expedited traveler information and monitoring systems.

Need

The proposed project is needed for the following reasons:

  • Recurring congestion during the AM and PM peak periods exceeds current design capacity limiting person throughput.
  • Operational inefficiencies lead to the formation of bottlenecks due to short weaving and merging areas as well as lane drops.
  • Inefficient movement of goods and services impedes regional and interstate economic sustainability.
  • The corridor users rely heavily on single occupancy vehicles, with limited multi-modal options such as transit, carpool, bicycle, and pedestrian facilities resulting in unreliable travel times.
  • Lack of real time traveler information and coordinated traffic communication systems impedes timely response to roadway incidents resulting in secondary collisions and increased non-recurring congestion.

1 Throughput is the number of people moving efficiently through a region.

2 Modality is the variety in modes of transportation. This includes access and multiple options for the movement of people and goods. Examples include access to transit, carpool, bicycle, and pedestrian facilities.

Total Project Cost

Total Project Cost:  $465 million

Schedule

Draft Environmental Document (DED) for Public Review: November 13, 2023

Public Circulation Comment Period End: January 12, 2024

Final Environmental Document and Clearance Complete: May 1, 2024

Design Complete: May 10, 2024

Construction Start:  April 14, 2025
Anticipated Construction Completion: Fall 2027

Final Environmental Document (2024)

Final Environmental Document is located here (State Clearing House Link)

Circulation Material

Interagency Consultation Package

POAQC Public Notice

Technical Studies

Community Impact Assessment
Air Quality Report
Cumulative Impact Hydraulics Study
Natural Environmental Study
Memorandum
Paleontological Identification Report
Floodplain Hydraulics Study
Initial Site Assessment
Traffic Analysis Report
NES Appx C Botanical Resources
NES Appx D Aquatic Resources Survey
NES Appx E Giant Garter Snaker Habit
NES Appx F BatHabitat Assessment
Nes Appx G Tricolored Black Bird Nesting Habitat Assessment
NES Appx H Swainson Hawk
NES Appx I Burrowing Owl Protocol Survey Results
NES Appx J Valley Elderberry Longhorn Beetle Habitat Assessment 
Noise Abatement Decision Report
Noise Study Report
VTM Mitigation Memo
VTM Mitigation Plan

Contact Us

Cameron Haymore
Project Manager
530-821-3872
cameron.haymore@dot.ca.gov


Dennis Keaton
Public Information Officer 
(530) 825-5252
dennis.keaton@dot.ca.gov 

Comments:
Yolo80corridor@dot.ca.gov

Helpful Links

  • Check out the Transit Providers to find one in your area, and even use the Google Transit Trip Planner to find routes and times for Regional Transit, Roseville Transit or Yolo Bus services.
  • Check out the Seats Available in vanpools, or find out how to start your own here.

Partner Links