ULTIMATE INTERSTATES

SAN DIEGO AREA



GENERAL INFORMATION & MAP

The greater San Diego region would see a number of interstate improvements. The map below shows these various improvements. Solid Blue Lines indicate new free ultimate interstate routes. Purple lines indicate future tolled ultimate interstate routes. Dotted lines show additional Proposed routes or alternative routes. Red lines show existing Interstate highways. Click on a shaded region below to view more detailed information about interstate ideas for that area

Interstate 408
Description Re-designation of SR-52 and the southern segment of SR-67 near El Cajon as interstate 410.
Purpose and Need To promote continuity with the existing interstate system.
Interstate 508
Description Re-designation of SR-54 from Chula Vista to SR-125 and SR-125 from there to Lemon Grove as interstate 508.
Purpose and Need To promote continuity with the existing interstate system.
Interstate 808
Description Re-designation of SR-94 from downtown San Diego to Lemon Grove and SR-125 from Lemon Grove to SR-52 as interstate 808.
Purpose and Need To promote continuity with the existing interstate system.
Interstate 815
Description Re-designation of SR-78 from Oceanside to Escondido as interstate 815 including upgrading the I-5/SR-78 interchange to interstate standards.
Purpose and Need To promote continuity with the existing interstate system.
Interstate 905
Description Re-designation of the entire length of SR-905 as interstate 905.
Purpose and Need To promote continuity with the existing interstate system.
Interstate 908 -Toll
Description Re-designation of SR-125 toll section south of SR-54 as interstate 908 including constructing the I-905 interchange near Otay Mesa
Purpose and Need To promote continuity with the existing interstate system and create vital link in the Los Angeles metro freeway system. This route could alleviate congestion off of busy I-5 and I-405.
Possible Extension I-908 could also be extended along the planned SR-11 tollroad to the planned East Otay Mesa port of entry if needed.