Project Improvements

The Placer County Transportation Planning Agency (PCTPA), along with project partners Federal Highway Administration, Caltrans, Placer County, and the Cities of Lincoln, Rocklin, and Roseville, along with input from stakeholders and the public, have identified improvements to the I-80/SR 65 interchange. These improvements have been environmentally cleared and received both state and federal approval in September 2016.

The proposed modern interchange design will eliminate congestion on I-80. In addition, with the improved traffic flow in the project area, the number of congestion-related accidents will decrease, which is expected to result in overall improved safety.

Click here to view detailed maps of the proposed improvements.

Click here to view a photo simulation proposed improvements to eastbound I-80. With the proposed improvements, the existing Taylor Road interchange access will be maintained.

The video below shows the proposed interchange improvements under future year 2040 traffic conditions during the evening. The video begins at the Eureka Road/Atlantic Street interchange and travels along eastbound I-80 towards SR 65, then continues on northbound SR 65 to the Galleria Boulevard/Stanford Ranch Road interchange.

Existing Traffic Congestion

Today, congestion on eastbound I-80 during the evening commute backs up from SR 65 more than 1 mile to Eureka Road and in six years this backup is anticipated to extend 3 miles to past Douglas Boulevard. The picture below shows existing traffic congestion on I-80 eastbound at the Roseville Parkway overcrossing looking towards Taylor Road and SR 65.

Existing Evening Traffic Congestion Looking East on I-80 from Roseville Parkway Overcrossing

Existing Evening Traffic Congestion Looking East on I-80 from Roseville Parkway Overcrossing

It is estimated that I-80 carries $4.7 million dollars an hour in goods movement, while the SR 65 corridor is the region’s home to a burgeoning commercial and professional business district. Designed more than 30 years ago, the I‑80/SR 65 interchange is now a bottleneck impeding the flow of traffic on both corridors. The picture below shows existing traffic congestion on I-80 westbound, which backs up from the bottleneck on northbound SR 65.

Existing Evening Traffic Congestion Looking West on I-80 at SR 65 Northbound Ramp

Existing Evening Traffic Congestion Looking West on I-80 at SR 65 Northbound Ramp

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