Interstate 10

Interstate 10
I-10 highlighted in red
Route information
Length	2,460.34 mi[1] (3,959.53 km)
Existed	1957–present
NHS	Entire route
Major junctions
West end	SR 1 in Santa Monica, CA
Major intersections	I-5 in Los Angeles, CA I-15 in Ontario, CA I-17 in Phoenix, AZ I-25 in Las Cruces, NM I-20 in Reeves County, TX I-35 through San Antonio, TX I-45 in Houston, TX I-55 in LaPlace, LA I-65 in Mobile, AL I-75 near Lake City, FL
East end	I-95 / US 17 in Jacksonville, FL
Location
Country	United States
States	California, Arizona, New Mexico, Texas, Louisiana, Mississippi, Alabama, Florida
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future

Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at 2,460.34 miles (3,959.53 km), following I-90, I-80, and I-40. It was part of the originally planned Interstate Highway network that was laid out in 1956, and its last section was completed in 1990.

I-10 stretches from the Pacific Ocean at State Route 1 (SR 1, Pacific Coast Highway) in Santa Monica, California, to I-95 in Jacksonville, Florida. Other major cities connected by I-10 include (from west to east) Los Angeles, Phoenix, Las Cruces, El Paso, San Antonio, Houston, Baton Rouge, New Orleans, Gulfport, Mobile, Pensacola, and Tallahassee. Over one-third of its total length is within the state of Texas, where the freeway spans the state at its widest breadth.