Interstate 605 is the San Gabriel River Freeway, following the San Gabriel River between Interstate 405 and California 22 in Seal Beach and Interstate 210 and Historic U.S. 66 (Huntington Drive) in Duarte. These endpoint cities are not featured on the overhead signs as control or destination cities; instead, the pull-through signs point simply display "Thru Traffic."

Interstate 605 California Highway Guides

The short section of Interstate 605 between California 22 and I-405 was designated as California 240 from 1963 until 1968, when the route description was changed to incorporate all of California 240 as part of I-605. Interstate 605 was also extended from I-10 north to I-210 at the same time in 1968.

Key Opening Dates of Interstate 605:

  • 195th Street to 183rd Street - July 27th, 1966
  • 183rd Street to Cecilia Street - June 15th, 1966
  • Cecilia Street to Former California 72 - July 29th, 1965
  • Former California 72 to Peck Road - May 29th, 1964
  • Peck Road to Interstate 10 - November 4th, 1964
  • Interstate 10 to Arrow Highway - May 4th, 1971
  • Arrow Highway to Interstate 210 - January 22nd, 1971

Interstate 605 scenes
2 photos
2 photos
Within the vicinity of Los Alamito, Katella Avenue westbound meets Interstate 605 at a parclo interchange adjacent to Coyote Creek. The freeway south ends in two miles at Interstate 405. Photos taken 05/02/10.
Westbound Telegraph Road approaches Interstate 605 (San Gabriel River Freeway) in the city of Santa Fe Springs. Photo taken 09/29/07.
2 photos
2 photos
Telegraph Road intersects Orr and Day Road ahead of the folded diamond interchange with the San Gabriel River Freeway. I-605 leads north to El Monte and Duarte. Photos taken 09/29/07.
Huntington Drive (Historic U.S. 66) intersects the north end of Interstate 605 at Mt. Olive Drive in Duarte. Photo taken 01/14/07.
Decorative street lights, with hoods shaped like mission bells, accompany Huntington Drive (Historic U.S. 66) across Duarte at the north end of I-605. Photo taken 01/14/07.



Photo Credits:

01/14/07, 09/29/07, 05/02/10 by AARoads

Connect with:
Interstate 5
Interstate 10
Interstate 210
Interstate 105
Interstate 405

Page Updated 09-23-2010.