Caltrans began $154.6 million I-80 reconstruction in Placer County | The Locally Times
Construction on two highway segments between Colfax and Nyack will continue through 2029.
Caltrans began $154.6 million in pavement and drainage work on Interstate 80 in Placer County earlier this month. The projects cover the corridor between Colfax and Nyack and remain scheduled for completion in 2029. ## Project Funding and Scope The Blue Canyon Pavement Rehabilitation project accounts for $116.7 million of the total investment. This work targets the eastbound highway lanes between Crother Road and Nyack and includes the addition of a truck-climbing lane, a dedicated uphill lane for heavy vehicles to maintain speed. Contractors Flatiron and Teichert perform the work. The project budget includes $14.9 million from the 2017 Senate Bill 1, the Road Repair and Accountability Act, which established a state funding program for transportation infrastructure. ## Alta Pavement Improvements Caltrans allocated $37.9 million for the Alta Pavement Improvement project between Colfax and Alta. This work includes pavement repairs, drainage system upgrades, and the replacement of guardrails and signage. Teichert serves as the primary contractor for this segment, which is set to conclude by the end of 2026. The project budget includes $5.5 million from the 2021 federal Infrastructure Investment and Jobs Act, the Bipartisan Infrastructure Law, and $3.75 million from Senate Bill 1. ## Construction Impacts Drivers will encounter traffic shifts and temporary barriers between Applegate and Weimar, as well as between Blue Canyon and Nyack. The work zones require motorists to navigate shifted lanes throughout the construction period. The Caltrans District 3 news release dated June 11, 2026, identifies the project goals as pavement rehabilitation and safety upgrades. The provided project records do not specify projected daily travel delays or the number of construction-related jobs created by the work. ## Key Questions **How long will the construction last?** The Alta Pavement Improvement project is set to conclude by the end of 2026, while the Blue Canyon Pavement Rehabilitation project is scheduled for completion in 2029. **Where will I encounter traffic delays?** Drivers will encounter traffic shifts and temporary barriers between Applegate and Weimar, and between Blue Canyon and Nyack.