Tuhia he tomokanga mō tēnei wāhanga - I Arcadia, he piriti rino rino i whakawhiti i te Atchison, Topeka me Santa Fe Railway i waenganui i te I-210 me te taumata huarahi. Ko tēnei piriti, i waenganui i a Baldwin me Santa Anita, i kiia he kore haumaru i muri i te ruu o Northridge i te tau 1994
ka tangohia e Caltrans. Ko te kaupapa Wahanga 2A i hangaia te "Iconic Freeway Structure or Gold Line Bridge" (IFS), hei piriti whakakapi. I hangaia e te kaitoi Minnesota a Andrew Leicester, i whakaatuhia te piriti i te Tihema 2012. I kōwhiria te hoahoa o Leicester i roto i ētahi atu 17 i roto i tētahi tukanga whakataetae. I mahi tahi te kaitoi me te kaitohutohu hoahoa a LA AECOM me te kaihanga o te piriti, Skanska USA, mo te hoahoa me te hanganga whakamutunga. Ko te ahua o te peeke whatu o nga pou tautoko o te piriti e whakaari ana i nga peeke whatu o nga taangata taketake o Chumash o te Raorao o San Gabriel i te wa e whakaoho ana te taha o raro o te piriti i te nakahi rango o te Hauauru.