Completed Projects

Featured here are projects that have been completed within the North Coast Corridor (NCC). These projects work together to improve our highway and coastal railways — providing more transportation choices.

Several of these projects received funding from the voter-approved TransNet half-cent sales tax, administered by SANDAG, and are the result of your tax dollars at work.

Highway Photo


I-5 High Occupancy Vehicle Extension, Lomas Santa Fe Interchange
Project extended the existing HOV/carpool lane in each direction from south of Via de la Valle to south of Manchester Avenue and added two new loop-style on-ramps to the interchange. Completed 2009; Cost $66 million.

Noise Reduction Pilot
Conducted Next Generation Concrete Surface (NGCS) pilot project on I-5 from Via de la Valle to Lomas Santa Fe Drive to determine whether vehicle noise produced on freeways can be reduced. Completed Late 2012; Cost $2 million.

I-805 HOV/Carroll Canyon Road Extension Project
Included the extension of Carroll Canyon Road under I-805, construction of two miles of High Occupancy Vehicle (HOV) lanes in each direction along I-805 from I-5 to Carroll Canyon Road, and construction of a northerly Direct Access Ramp (DAR) from the Carroll Canyon Road Extension to the HOV lanes. Completed 2014; Cost $94.8 million.

I5 Rail Improvement


South Carlsbad Double Track Project
SANDAG, North County Transit District, and Amtrak built a 1.9-mile second main track from Carlsbad Village Drive southward past Cannon Road and constructed a new rail bridge over the Agua Hedionda Lagoon. Completed February 2012; Cost $18.4 million.

Del Mar Bluffs Stabilization Project
SANDAG stabilized portions of the 1.6 miles of coastal bluffs between Seagrove Park and Torrey Pines State Beach in the City of Del Mar to ensure uninterrupted rail service. Completed spring 2012; Cost $4.8 million.

Santa Fe Pedestrian Undercrossing
SANDAG constructed a new rail bridge, and a pedestrian undercrossing beneath the tracks, between Highway 101 and Vulcan Avenue, west of Santa Fe Drive. A new crosswalk and traffic signal on Highway 101 were installed to increase pedestrian safety. Completed 2013; Cost $5.9 million.

Sorrento to Miramar Phase 1
Phase 1 provided a mile of new track main line, parallel to the existing track, south of Sorrento Valley Boulevard to the east side of I-805, a new rail bridge, and a track crossover to improve operations in Sorrento Valley. Completed March 2014; Cost $44 million.

Sorrento Valley Double Track Project
SANDAG constructed 1.1 miles of double track just north of the Sorrento Valley COASTER Station to Carmel Mountain Road, added a new 81-space parking lot, and replaced two wooden trestle bridges. Completed November 2015; Cost $31.8 million.

San Onofre to Pulgas Double Track Phase 1

SANDAG completed the first phase, which added 4.2 miles of second track from San Onofre State Park to Las Flores Creek, just south of Las Pulgas Road, in the NCTD railroad right-of-way. In addition, the project replaced a 1931, wooden trestle bridge with a modern concrete structure, added new signaling, and a retaining wall. Completed November 2015; Cost $37.7 million.

Environmental Access

Environmental/Coastal Access

Several hundred acres of habitat have been acquired for preservation and/or restoration as part of the NCC Program. Learn how the NCC Program’s Resource Enhancement Mitigation Program (REMP) provides corridor-wide opportunities to advance mitigation benefits ahead of project impacts.