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I-1
Interstate 1 (I-1) is a main Interstate Highway running parallel along very closely to the Pacific Coast of the United States from Dana Point, California to Grant Pass, Oregon. It is one of the two coastal Interstate Highways in the United States, the other one being Interstate 101 (I-101), which runs parallel closely to the Atlantic Ocean. The southern terminus is at Interstate 5 (I-5) in Dana Point, California. The northern terminus is at Interstate 5 (I-5) in Grant Pass, Oregon. The interstate is only in the states of California and Oregon. In California, the entire highway is known as the Pacific Coast Freeway. From Santa Monica to Dana Point, it is known as the Dana Point Freeway. It is one of the state's most famous freeways and highways. The entire interstate is parallel to California State Route 1 (CA 1), U.S. Route 101 (US 101), and partly Interstate 5 (I-5) and U.S. Route 99 (US 99). The interstate provides great scenic view of the Pacific Ocean and the mountains passed by the interstate, forcing each direction to split out. However, tunnels are involved, allowing the interstate to go through the mountains.

Route description Edit

California Edit

Main article: Interstate 1 in California

In Dana Point, after Interstate 5 (I-5) is done paralleling the Pacific Coast and turning inland as the Santa Ana Freeway, I-1 takes over and begins in Dana Point as I-5 and I-1 splits southeast of the city. I-1 begins as the Pacific Coast Freeway. The highway starts sharing routes with California State Route 1 (CA 1) as it runs  northwards leaving Dana Point then next up is Laguna Beach, where California State Route 133 (CA 133) begins at I-1. Next is Newport Beach, where California State Route 55 (CA 55) begins as it heads to Costa Mesa becoming a freeway. As I-1 starts paralleling Interstate 405 (I-405), it heads to Huntington Beach, where California State Route 39 (CA 39) begins.