Interstate 10 (I-10) is the soothrenmaist transcontinental highway in the Interstate Highway Seestem o the Unitit States. It stretches frae the Paceefic Ocean at State Route 1 (Pacific Coast Highway) in Santa Monica, Californie tae Interstate 95 in Jacksonville, Florida. The freeway is pairt o the oreeginal Interstate Highway plans designatit in 1956 wi its final section completit in 1990. Ower ane-third o the length o I-10 resides in the state o Texas whaur the freeway spans the state at its widest pynts.