Louisiana Road Map

Written and Fact-checked by | Updated On: April 03, 2026 | 15:15 ET

Louisiana Road Map showing the state routes, US highways, interstate highways, major roads, local connecting Road, secondary Road, important local road of the Louisiana.

Louisiana Roads and Highways Map

Louisiana Road Map Showing Highways About Map: Map showing major roads, local connecting Road, secondary Road, Important Local Road of the Louisiana, United States.

PDF Map - Louisiana Road & Highways Map

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Roads and Highways in Louisiana

Louisiana has a well-developed road network that supports regional travel, freight transport, and access to coastal and inland areas. Major interstate highways such as I-10, I-20, I-49, and I-55 connect cities like New Orleans, Baton Rouge, Shreveport, and Lafayette. U.S. and state highways extend across bayous, rural regions, and small towns, providing essential links for local travel. These roads play a vital role in commerce, tourism, and energy-related industries, ensuring reliable connectivity across Louisiana’s diverse landscape.

Major Highways in Louisiana

HighwayTypeRoute DirectionConnects
I-10InterstateEast–WestLake Charles, Baton Rouge, New Orleans
I-20InterstateEast–WestShreveport, Monroe
I-49InterstateNorth–SouthShreveport, Alexandria, Lafayette
I-55InterstateNorth–SouthHammond, New Orleans
I-12InterstateEast–WestBaton Rouge, Slidell
US 61U.S. HighwayNorth–SouthBaton Rouge, Natchez
US 90U.S. HighwayEast–WestLafayette, New Orleans
US 165U.S. HighwayNorth–SouthAlexandria, Monroe
US 171U.S. HighwayNorth–SouthLake Charles, Shreveport
LA 1State HighwayNorth–SouthGrand Isle, Baton Rouge
LA 182State HighwayEast–WestLafayette region
LA 28State HighwayEast–WestAlexandria region
LA 22State HighwayEast–WestSouthern Louisiana

Interstate Highways in Louisiana

InterstateRoute DirectionKey Cities Connected
I-10East–WestLake Charles, Baton Rouge, New Orleans
I-12East–WestBaton Rouge, Slidell
I-20East–WestShreveport, Monroe
I-49North–SouthShreveport, Alexandria, Lafayette
I-55North–SouthHammond, New Orleans
I-110North–SouthBaton Rouge
I-210LoopLake Charles
I-220LoopShreveport
I-310North–SouthNew Orleans metro
I-510North–SouthNew Orleans east

Road Network in Louisiana

Louisiana’s road network includes interstate highways for high-speed travel, U.S. highways connecting major regions, and state highways serving local communities and coastal areas. Local roads and rural routes provide access to neighborhoods, bayou regions, and agricultural areas, supporting daily travel and economic activity.

Road TypeDescriptionApprox. Length
Interstate HighwaysHigh-speed corridors900 miles
U.S. HighwaysRegional connectors3,000 miles
State HighwaysStatewide routes16,000 miles
Local RoadsCity streets70,000+ miles
Rural RoadsBayou access55,000+ miles

Louisiana Roads & Highways Facts

StateLouisiana
Total Road Network145,000+ miles
Interstate Mileage900 miles
State Highway System16,000 miles
Total Lane Miles210,000+ miles
Major Interstate RoutesI-10, I-20, I-49, I-55
Key AuthorityLouisiana Department of Transportation and Development
Number of Interstates10
Major UsesFreight, energy
Urban Road NetworkGrowing metro systems
Longest InterstateI-10
Longest U.S. HighwayUS 90

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