State Route 78 Projects
State Route 78 (SR-78) serves as the primary east-west travel corridor between Escondido and Oceanside, traversing through Carlsbad, Vista, and San Marcos, as well as unincorporated areas of San Diego County. It is the main route for local and regional travel in North County and provides north-south connections to Interstates 5 and 15.
Current SR-78 Corridor projects include:
- I-15/ SR-78 Express Lanes Direct Connectors Project
- I-5/SR-78 Interchange Project
- North County CMCP
- SR-78 Asset Management
For more information on these projects, please visit their pages linked above.
To stay up to date with SR-78 projects, please visit sandag.org/subscribe to sign up for updates.
For any questions or comments on projects on the SR-78 corridor, please contact the project team by emailing SR78@KeepSanDiegoMoving.com, and a team member will respond to you promptly.
- Carrol Canyon Support Wall and Road Repair Project
- Harbor Drive 2.0/Vesta Bridge Port Access Improvements
- I-15 Pavement Replacement
- I-5/SR 56 Interchange Project
- I-8 Pavement and Bridge Rehabilitation Improvement Project from El Cajon Blvd to Marshall Ave
- I-8 Pavement Replacement and Road Improvements Project
- I-805 South Pavement Rehabilitation and Asset Management Project
- Imperial Valley Pavement and Bridge Rehabilitation Improvements
- San Diego – Coronado Bay Bridge Suicide Deterrent Project
- SR-11 / Otay Mesa East Port of Entry
- SR-111 Niland Geyser Mitigation Project
- State Route 67 Corridor
- State Route 78 Projects
- State Route 78 Asset Management through Ramona
- State Route 78 Culvert & Road Rehabilitation Project
- SR-125 Pavement Rehabilitation Project
- SR-94/125 Interchange Project
- I-805/I-15 Transit Only Connector and Managed Lanes Project