Build NCC | Highway Improvements
Build NCC highway improvements will begin by 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 bridges over the San Elijo and Batiquitos lagoons will be replaced with wider and longer bridges to accommodate the carpool lanes and improve lagoon tidal flow. Ten 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
at BuildNCC@KeepSanDiegoMoving.com.
To receive construction alerts via text message, text BuildNCC to 313131.
Learn more about Build NCC:
Project Features
 | I-5 Carpool Lanes Addition of one carpool lane in each direction from Lomas Santa Fe Drive to SR 78. Status: Construction begins 2017 |  | Devonshire Street Improvements A neighborhood enhancement feature in Encinitas. Status: Construction begins 2017 |
 | San Elijo Lagoon Highway Bridge Replacement of San Elijo Lagoon highway bridge to improve lagoon tidal flow. Status: Construction begins 2017 |  | Sound Walls Addition of sound walls to improve residents’ quality of life. Status: Construction begins 2017 |
 | Manchester Avenue Park & Ride/Multi-use Facility A facility to provide parking, bike lockers, EV charging stations, and access to San Elijo Lagoon. Status: Construction begins 2020 |  | Batiquitos Lagoon Highway Bridge Replacement of the Batiquitos Lagoon highway bridge to improve tidal flow Status: Construction begins 2017 |
Key Documents
