Additional Info

Interstate 69C south at Interstate 2. Photo taken by Jeff Royston (08/21/13).
Interstate 2 was designated in 2013 to serve the Lower Rio Grande Valley (RGV) in south Texas. Until the establishment of I-41 in 2015, it was the newest 2-digit Interstate in the system.
Interstate 5 south at Grapevine, California. Photo taken 04/09/12.
Interstate 5 leaves the Central Valley and climbs to a high point of 4,144 feet across Tejon Pass near Gorman. South from there the freeway lowers into Los Angeles.

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Interstates H1 through 8 and Signed Branch Routes

Jump to Interstate
H1-8 10-15 16-29 30-39 40-45 49-64 65-69 70-74
75-77 78-80 81-84 85-88 89-90 91-94 95 96-99

Interstate South/West Terminus North/East Terminus
H-1 Makakilo Honolulu
H-201 HI Aiea Honolulu
H-2 Pearl City Wahiawa
H-3 Halawa Heights Kanoehe Marine Corps Base Hawaii
2 Palmview, TX Brownsville, TX
4 Tampa, FL Daytona Beach, FL
5 San Ysidro, CA (Mexican border) Blaine, WA (Canadian border)
105 CA El Segundo/Los Angeles International Airport Norwalk
105 OR downtown Eugene Eugene
205 CA Tracy Banta
205 OR/WA Tualatin Salmon Creek
405 CA Irvine Los Angeles/San Fernando Valley
405 OR Loop - west Portland urban
405 WA Tukwila Alderwood Manor
505 CA Vacaville near Dunnigan
605 CA Long Beach Monrovia/Duarte
705 WA Tacoma downtown Tacoma
805 CA San Ysidro/San Diego Carmel Valley/San Diego
8 San Diego, CA Casa Grande, AZ