Cika wannan jumla: A total rushewa na kudu-zuwa Interstate 5 zuwa arewa-zuwa Jihar Hanyar 14 overpass ya faru a sakamakon Fabrairu 9, 1971
Girgizar ƙasa ta Sylmar. Wannan rushewa ya haifar da ƙarin rushewa na ƙetare kudancin Jihar Jihar 14 zuwa kudancin I-5 (kamar yadda wannan gada mai haɗawa ya kasance a ƙarƙashin 5/14. Dukansu gadoji sun fadi kai tsaye a kan hanyar da ke kudu ta hanyar I-5. Akwai lalacewar duk tsarin da aka shafa, ya bambanta daga ƙananan ƙwanƙwasawa da ɓarna, zuwa asarar cikakkun sassan gadoji.