Build NCC | Highway Improvements
Build NCC highway improvements includes extending the carpool lanes on Interstate 5 (I-5) from Lomas Santa Fe Drive in Solana Beach to State Route 78 (SR 78). Additionally, the highway bridge over the San Elijo Lagoon is being replaced with a wider and longer bridge to accommodate the carpool lanes and improve lagoon tidal flow. Eleven sound walls will be constructed on private property in Encinitas and Carlsbad during the first phase of highway improvements.
Some I-5 ramp and nighttime lane closures are anticipated. For the latest information on closures, view the closure list.
Questions? Call our construction hotline at (844) NCC-0050 or email us
To receive construction alerts via text message, text BuildNCC to 313131.
Learn more about Build NCC:
Addition of one carpool lane in each direction from Lomas Santa Fe Drive to SR 78.
Status: Construction Completion: 2022
A neighborhood enhancement feature in Encinitas.
Status: Construction Completed: 2019
Replacement of San Elijo Lagoon highway bridge to improve lagoon tidal flow.
Status: Construction Completion: 2021
Addition of sound walls to improve residents’ quality of life.
Status: Construction Begins: 2019
A facility to provide parking, bike lockers, EV charging stations, and access to San Elijo Lagoon.
Status: Construction Begins: 2020
Sitefinity ASP.NET CMS