I-8 Pavement Replacement and Road Improvements Project from Viejas Creek to Pine Valley Creek

I-8 Pavement Replacement and Road Improvements Project logo. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.govIntroduction

This project will extend the service life of this section of Interstate 8 in East County by replacing aged pavement, installing fiber optic cable to provide internet service for all Californians and other road-enhancing features. The result will give all motorists a smoother ride, support efficient goods movement and internet connectivity, and reduce future maintenance and construction efforts. By doing so, safety will improve for both motorists and highway workers.

Extending the service life

The I-8 Pavement Replacement Project will replace pavement in the eastbound lanes between Viejas Creek in the town of Alpine and Pine Valley bridge, an unincorporated area of San Diego County. The pavement replacement includes new concrete for the Number 3 lane and the outside shoulder and spot locations on the Number 1 lane with individual slab replacement. Number 2 lane will be replaced from west of Vista point to west of Pine Valley bridge. New asphalt segments for the inside shoulder will also be added in the eastbound direction. This road replacement will significantly extend the pavement’s service life and reduce the maintenance service needed.

Project Area Map. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.gov

Improving the Roadway with CRCP

The project will construct Continuously Reinforced Concrete Pavement (CRCP), providing a superior, long-lasting roadway to reduce maintenance and construction efforts in the future, thereby reducing impacts on the traveling public and exposure for highway workers. In addition, drainage systems will be upgraded, including water quality improvements, and several bridges will be rehabbed. 

Phased Approach

This project will be split into five phases, beginning in September 2022, and lasting through March 2024.

Construction on the first phase has already begun and is expected to be completed by December 2022. The eastbound I-8 bicycle lane will also be closed during the project for the safety of bicyclists, drivers, and highway workers. Shuttle transportation will be provided for bicyclists from East Willows Road to the State Route 79 (SR-79)/ Japatul Valley Road Park and Ride.

At the conclusion of the work, motorists will see and feel an improvement in ride quality and benefit from the extension of the service life of the roadway.

Continuously Reinforced Concrete Pavement (CRCP) is constructed with steel reinforcing bars placed within the concrete along the entire length of the pavement. CRCP naturally forms tight transverse cracks to transfer loads evenly.

The result is a continuous, smooth-riding surface capable of withstanding the heaviest traffic loads and the most adverse environmental conditions. The life span for CRCP pavement may be up to 70 years, far exceeding existing road surfaces.


The project cost is $46.6 million, with $42 million coming from the federal government and $4.6 million from the Road Maintenance and Rehabilitation Account created under voter-approved Senate Bill 1 (SB 1).

What’s ahead?

The average traffic volume within the 10-mile project limits is approximately 100,500 vehicles per day. Segments of I-8 will be reduced to one lane during the construction of CRCP for extended periods. Specific stretches of I-8 will be fully open as work progresses to alleviate traffic congestion. CRCP construction will occur behind concrete barriers to expedite construction and protect construction crews, with expected delays. Some on-and off-ramps within the project limits may be closed during the project duration. To minimize the impact of the daily commute, consecutive ramps will not be closed simultaneously.

Caltrans will reach out to residents, local tribal communities, businesses, schools, and community groups in the region. Our goal is to provide project updates, notification of possible impacts, and a method to contact us with questions or concerns.


Safety for the traveling public, including safety and protection for highway workers, is priority number one for Caltrans.

The following safety features are included in the construction of this project

  • Construction work zone speed limit reduction to 55 MPH
  • Advanced warning traffic signs
  • Reinforced concrete barrier that separates traffic from roadway workers and equipment
  • California Highway Patrol and freeway service patrol, i.e., tow service to monitor the work zone daily


Project Work Timeline. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.gov

Stage 1
Summer – Fall 2022

Stage 1 work locations map. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.gov

Phase 1 and 2

  • Site preparations
  • Grading
  • Demolition of existing asphalt on lanes 1 and 2
  • Conduit installation 

Stage 2
Fall 2022 – Spring 2023

Stage 2 work locations map. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.gov

Phase 1

  • CRCP installation on lanes 2 and 3
  • Conduit installation
  • Drain/water improvements

Phase 2

  • Lane 2 improvements: CRCP installation

Phase 3

  • Bridge repair work
  • CRCP installation

Phase 4

  • Horse Thief Bridge: demolition of the asphalt on lanes 1 and 2 and replacement with CRCP

Stage 3
Spring – Summer 2023

  • Drainage systems improvement on lane 2

Phase 1 

  • Lane 2 improvements: replacing asphalt with CRCP
  • Sweetwater Creek Bridge improvements: Drainage and water quality improvements.

Phase 2

  • CRCP installation on the number 2 and 3 lanes

Phase 3

Las Blancias Bridge:

  • Rehabilitation work
  • Demolition of the asphalt on lanes 1 and 2
  • Replacement with CRCP

Phase 4

  • Pine Valley bridge rehabilitation and other improvements

Stage 4
Summer 2023 – Winter 2024

  • Lane 2 improvement
  • Bridge rehabilitation

Phase 1 

  • Lane 2 improvement projects and bridge rehabilitation at Horse Thief bridge, Las Blancias bridge, and Pine Valley Creek bridge
  • Replace CRCP and striping
  • New shoulder pavement

Stage 5
Winter 2024 

Final touchups

Phase 1

  • Final striping
  • Clean-up
  • Removal of construction equipment