Interstate 10 in Louisiana

Interstate 10
Interstate 10
	I-10 highlighted in red
Route information
	Maintained by Louisiana DOTD
Length	274.42 mi (441.64 km)
Existed	1957–present
History	Completed in 1978
NHS	Entire route
Major junctions
West end	I-10 / US 90 at Texas state line
	I-210 in Lake Charles; I-49 / US 167 / LA 182 in Lafayette; I-12 in Baton Rouge; I-55 near LaPlace; US 90 / Future I-49 / I-910 in New Orleans; US 11 in New Orleans; I-12 / I-59 near Slidell;
East end	I-10 at Mississippi state line
Location
Country	United States
State	Louisiana
Parishes	Calcasieu, Jefferson Davis, Acadia, Lafayette, St. Martin, Iberville, West Baton Rouge, East Baton Rouge, Ascension, St. James, St. John the Baptist, St. Charles, Jefferson, Orleans, St. Tammany
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Louisiana State Highway System; Interstate; US; State; Scenic;

Interstate 10 (I-10), a major transcontinental Interstate Highway in the Southern United States, runs across the southern part of Louisiana for 274.42 miles (441.64 km) from Texas to Mississippi. It passes through Lake Charles, Lafayette, and Baton Rouge, dips south of Lake Pontchartrain to serve the New Orleans metropolitan area, then crosses Lake Pontchartrain and leaves the state.