I-5/SR 56 Interchange Project

The Project

The Interstate 5 (I-5)/State Route 56 (SR 56) Interchange Project will improve traffic operations on I-5 between Del Mar Heights Road and Carmel Valley Road, and on SR 56 between I-5 and Gonzales Creek Bridge, improving local and regional traffic on two of San Diego’s most critical north-south and east-west freeways.

The improvements are being constructed in two phases to provide near term improvements on SR 56 and to align with anticipated funding. The project phases are as follows:

  • Phase 1: Construct an HOV Operational lane in each direction on SR 56 between El Camino Real and Gonzales Creek Bridge.
  • Phase 2: Build a direct connector from westbound SR 56 to northbound I-5, replace and enhance the Del Mar Heights Road overcrossing, and construct an additional westbound lane on SR 56.

Phase 1 Status

Phase 1 is currently funded through design and the anticipated start of construction is Summer of 2023. Phase 2 is currently unfunded.

I-5/SR-56 Interchange Project Phase 1 Map. For more information, call (619) 688-6670 or email CT.Public.Information.D11@dot.ca.gov

News Releases

  • May 25, 2022 – I-5/SR-56 Interchange Project Update
  • May 25, 2022 – Actualización del proyecto de la intersección I-5/SR-56