Yolo Transportation District (YoloTD) and the California Department of Transportation (Caltrans), in collaboration with other stakeholders, have joined forces for a freeway expansion initiative aimed at enhancing traffic flow within the I-80 corridor on the west side of the Sacramento-Yolo metropolitan area. This project has multiple components, including:
This project will address recurring congestion experienced during peak travel periods. The existing facility is currently operating above capacity and the proposed project aims to keep people and goods moving.
Design and environmental review began
$86 million INFRA grant awarded
Draft Environmental Document (DED) released for public review
Final environmental document and clearance completed
$105 million TCEP grant awarded
Design completed
Construction starts
Toll Planning & Policy
Construction complete and toll system launch
Caltrans was the lead agency responsible for conducting environmental review to determine it the project would have significant environmental effects and clear the project for construction approval. Caltrans is also responsible for the implementation and oversight of the construction of the proposed changes to I-80.
Capital Area Regional Tolling Authority (CARTA) is a new Joint Powers Authority formed in January 2024 to develop and operate toll facilities in the Sacramento region. CARTA is currently comprised of elected representatives from YoloTD, SACOG, and Caltrans District 3. Voting representation in CARTA will grow as the region’s tolled managed lane network expands. CARTA is responsible for setting coordinated toll prices, rules, and discounts across the Sacramento region to reduce confusion for drivers; and for the distribution of surplus toll revenue.
SACOG is the Metropolitan Planning Organization of the Sacramento region and is responsible for regional and state level transportation planning. The SACOG Board of Directors approved the JPA agreement in January 20245, and currently manages CARTA staff.
Autumn Bernstein, Executive Director
(530) 402-2812 | abernstein@yctd.org
Brian Abbanat, Director of Planning
(530) 402-2879 | babbanat@yctd.org
Below you can find more information and project documents.
The Project will construct approximately 17 center-line miles of Tolled Managed Lanes in both directions on Interstate 80 (I-80) and United States 50 (US-50) in Yolo County and portions of Sacramento County to alleviate bottlenecks and address an increasing capacity constraint.
Project components includes installation of Intelligent Transportation Systems (ITS) elements, such as fiber optics, detection, changeable message signs, to enhance mobility conditions and incident management strategies between jurisdictions; and improved bicycle and pedestrian access and safety to the eastern and western termini of the Yolo Causeway Class I facility that includes reduced curve radius, and analyze additional crosswalk, sidewalk, lighting, and safety elements.
The proposed improvements represent a scope guided by a variety of stakeholders from local and regional entities along the corridor. The Project begins at the Solano/Yolo County line on I-80 and ends at the I-80/West El Camino Avenue interchange, and on US-50 from the I-80/US-50 Interchange to the I-5/US-50 interchange, in Sacramento County. The project area includes the entire I-80 and US-50 corridors in Yolo County. This Project will result in direct and significant benefits to the economic vitality of the region by enhancing the operational performance and safety for regional and interregional travelers and national freight movement.
The I-80/US-50 corridors are subject to high travel demand, especially during peak commute periods and recreational weekend travel. The demand has created severe traffic congestion and impaired mobility along the route. At various locations, specifically I-80 through the city of Davis, and along the Yolo Bypass Causeway between the cities of Davis and West Sacramento, travel demand has exceeded highway design capacity, resulting in bottlenecks during the AM and PM peak periods. Multiple factors contribute to these bottlenecks, including high traffic volumes, short weaving and merging areas, lane drops, limited sight distances, lack of ITS elements, and incomplete bus/carpool, ramp metering, and auxiliary lane networks. Heavy congestion and stop-and-go traffic have contributed to increased vehicle emissions, increased travel costs, and reduced travel time reliability.