Interstate 605
The distance is traversable via nearby Seal Beach Boulevard, but Caltrans has no intention to adopt the road as part of Route 605.The southern terminus of I-605 is at the San Diego (I-405) and Garden Grove (SR 22) Freeways in Seal Beach.With the addition of the HOV lane, the left shoulder was eliminated to avoid massive costs to widen the freeway.I-605 is one of the only Southern California freeways without destinations (control cities) such as "Seal Beach" or "Irwindale" since its opening.Rather, cardinal directions ("NORTH" or "SOUTH"), and a simple "THRU TRAFFIC" designation in place of control cities, are used on signs along I-605 itself.
Interstate 605 (Washington)CaltransSR 22Seal BeachSR 91CerritosNorwalkSanta Fe SpringsSR 72WhittierSR 60Avocado HeightsBaldwin ParkIrwindaleHuntington DriveDuarteUnited StatesCaliforniaOrangeLos AngelesInterstate Highway SystemAuxiliarySuffixedBusinessFutureState highways in CaliforniaInterstateScenicHistoryPre‑1964UnconstructedDeletedFreewaysauxiliary Interstate HighwayGreater Los AngelesSouthern CaliforniaState Route 22Orange CountyLos Angeles CountySan Gabriel RiverSouthern California freewaysCalifornia Streets and Highways CodeRoute 1Route 405Route 210San DiegoGateway CitiesLos Angeles BasinWhittier NarrowsSan Gabriel ValleyFoothill FreewaySanta Fe DamHOV laneSanta Ana Freewaycontrol citiesCalifornia Freeway and Expressway SystemNational Highway SystemFederal Highway AdministrationEl Monte, CaliforniaDowney, CaliforniaLong BeachLos AlamitosSan Diego FreewayGarden Grove FreewayGarden Grove405 Express LanesSanta MonicaCoyote CreekLakewoodCarson StreetUS 91SR 18Del Amo BoulevardArtesia FreewayAlondra BoulevardRosecrans AvenueCentury FreewayImperial HighwaySR 90Firestone BoulevardSR 42DowneyFlorence AvenueSanta AnaUS 101 Byp.SR 26West Whittier-Los NietosSlauson AvenueWashington BoulevardWhittier BoulevardUS 101Pico RiveraBeverly BoulevardIndustryPomona FreewayPomonaValley BoulevardUS 60SR 212San Bernardino FreewaySan BernardinoUS 99US 70Ramona BoulevardEl MonteArrow HighwayPasadenaHistoric US 66at-grade intersectionUS 66Electronic toll collectionCalifornia Numbered Exit Uniform SystemCalifornia Department of TransportationAuxiliary routesInterstate 5OregonWashington