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Interstate 110 Louisiana

Turning northwest along Interstate 110 northbound between Scotlandville and Baton Rouge Metro Airport (BTR). Photo taken 05/19/14.


Interstate 110 winds north through Baton Rouge, joining I-10 with Downtown, the State Capitol and Baton Rouge Metropolitan Airport (BTR). The urban spur provides a high speed route to U.S. 61 (Scenic Highway) leading north from Scotlandville in north Baton Rouge to southern Mississippi. The freeway carries six lanes north to Louisiana 19 (Scotland Avenue) and four lanes on the western leg to Scenic Highway. Speed limits are posted at 50 miles per hour on the substandard portion to the south and 60 miles per hour on the more linear stretches to the north.

A four level interchange joins Interstate 110 with U.S. 61 & 190 (Airline Highway) east of the Mississippi River Bridge. U.S. 190 and I-110 form part of an incident detour for I-10 and the Horace Wilkinson Bridge.


Initial construction for Interstate 110 took place by 1956 east of Capitol Lake and south of Memorial State. Named the Baton Rouge Expressway (Louisiana 3022), the short segment opened south to North Boulevard and north to Louisiana 67 (22nd Street) by 1961. The viaduct system south to Interstate 10 was completed by 1963, allowing a fast route from Downtown to the eastern suburbs and I-12.

Early plans for Baton Rouge outlined a full loop north from Interstate 10 using a portion of U.S. 190 (Airline Highway) and the Mississippi River Bridge. This included a new terrain alignment from I-10 north to U.S. 190 at LA 1145, and an upgrade of U.S. 190 east to a trumpet interchange with I-410 leading south to the Baton Rouge Expressway.

1961 Gousha map showing the projected path of Interstate 410 between I-10 and U.S. 190 (Airline Highway) in West Baton Rouge Parish.

Extension of I-110 north to Airline Highway was completed by 1972. The freeway opened north from U.S. 61 & 190 to Harding Boulevard by 1978. The final link with U.S. 61 (Scenic Highway) was finished by 1984.

A number of sign changes were made along I-110 by 2003. This included the following exit renumbering:

  • Interstate 10 - unnumbered, new Exits 1I/J
  • Laurel Street - old Exit 1F, new Exit 1H
  • Evangeline Street - old Exit 4A, new Exit 4
  • Hollywood Street - old Exit 4B, new Exit 5A
  • U.S. 61 & 190 (Airline Highway) - old Exit 5, new Exit 5B
  • LA 19 - old Exit 8, new Exit 8A
  • U.S. 61 (Scenic Highway), old Exits 8A/B, new Exits 8B/C

The freeway was resigned again to use Clearview font by 2013.

Highway Guides

Southern Terminus - Interstate 10 - Baton Rouge, Louisiana
Perspective from Interstate 110 south
The Louisiana State Capital ahead, Interstate 110 pushes southward at Exit 1E/Capital Access Road. The first indication of the pending terminus at Interstate 10 is posted over the mainline. Photo taken by Chris Patriarca (04/13/03).
Southbound Interstate 110 approaching Junction Interstate 110 and its southern terminus. Note that the three main lanes exit directly onto eastbound Interstate 10, while the right exit leads to westbound Interstate 10, including the Mississippi River bridge. Photo taken 08/12/02.
LADOTD has replaced the Interstate 110 guide signs and original lighting fixtures with these new panels. Also added are exit tabs for the Interstate 110 respective exits. Exit 1I and 1J are assigned to the upcoming ramps. While the Louisiana 73 off-ramp is assigned Exit 1A, the ramps further north continue the northbound suffixes from Exit 1F for Exit 1G/Old Spanish Town Road and Exit 1H/Laurel Street. Note also the lane reconfiguration that eliminates the right-hand exit-only lane for Interstate 10 westbound (see above photograph). Photo taken 10/15/03.
Traffic from Convention Street merges onto Interstate 110 south as it nears Exit 1A for Louisiana 73. Louisiana 73 begins nearby at Louisiana 30/Saint Philip Street in downtown Baton Rouge. Photo taken 10/15/03.
Interstate 110 concludes at a stack interchange with Interstate 10. Interstate 10 enters from the west and turns south toward New Orleans and Gonzalez. Around the bend to the west is the last Baton Rouge interchange of Exit 155A with Louisiana 30. Photo taken by Chris Patriarca (04/13/03).
Lane restriping results in a reduction of the now Exit 1I ramp to Interstate 10 eastbound from three to two lanes. Note the new sign as well. Ahead and above is the sharp two lane Interstate 10 westbound mainline. The sign for Exit 1J is also new (out of view). Photo taken 10/15/03.
A look at the Interstate 110 southern terminus as seen from the Exit 155B ramp from Interstate 10 east to Interstate 110 north. A massive traffic jam was in progress due to an accident on Interstate 10 east nearby. Photo taken 08/12/02.
Perspective from Interstate 10 west
Westbound Interstate 10 approaching Junction Interstate 110 in Baton Rouge. This spur route is the primary route to industrial facilities located along the Mississippi River, the state government complexes (including the capital), the regional airport, Business Loop U.S. 61 (as evidenced by the shield to the left of the overhead signs), and the urban core. Interstate 10 and Interstate 110 carries a major amount of traffic, and due to the fact that both roads are primarily elevated viaducts in this immediate area, the shoulders can be substandard to non-existent. Traffic backups are frequent, and alert signage is in place for through traffic. Photo taken 08/12/02.
These signs were replaced with those depicted in the above photograph. Note that the exit tab is no longer centered with the Exit 155B sign replacement and that the lighting fixtures and assemblies were also removed. Vidcap taken 01/96.
Westbound Interstate 10 approaching Interstate 110 northbound. The skyscaper-esque Louisiana State Capitol Building is the tall, needle-like building in the distance. Travelers must take Interstate 110 north to reach the state capitol. The truck restriction on Interstate 10 westbound is due to the upcoming Mississippi River Bridge. Photo taken 08/12/02.
Westbound Interstate 10 at Junction Northbound Interstate 110. Note that mainline traffic along Interstate 10 must slow to 35 mph, while traffic along Interstate 110 may continue at the speed limit (50 miles per hour). This marks the southern terminus of Interstate 110 in Louisiana. Traffic remains heavy along northbound Interstate 110 at least through U.S. 190, which connects to the other Mississippi River Bridge. Photo taken 08/12/02.
Another view of the Interstate 110/Exit 155B guide sign at the split of Interstate 110 north from Interstate 10. The Business U.S. 61 trailblazer to the right refers to one of the main routes into downtown Baton Rouge from Interstate 110. Vidcap taken 01/96.
Perspective from Interstate 110 north
The first exit on northbound Interstate 110 is for Louisiana 73. The first four exits lead to downtown Baton Rouge, and they are all within the first mile of Interstate 110 northbound. Photo taken 08/12/02.
Perspective from Interstate 10 east
Two-mile guide sign for Exit 155B/Interstate 110 north. The exit for Interstate 110 is not the next in line, but because of its significance for downtown Baton Rouge, it is mentioned here. The ramp to the right serves the Louisiana 1 interchange for the towns of Port Allen and Plaquemine. Photo taken by Eric Stuve (12/17/02).
Descending from the Mississippi River Bridge on Interstate 10 eastbound. Exit 155A serves Louisiana 30 and Louisiana State University and is the first Baton Rouge exit of Interstate 10. The split with Interstate 110 is situated just one mile east. Photo taken by Eric Stuve (12/17/02).
Eastbound Interstate 10 approaching Junction Interstate 110, one-half mile. The actual interchange is visible in the distance. Interstate 12 is mentioned on area guide signs because that exit is only four miles east of here. Photo taken 08/12/02.
Night-time view of the diagram sign for Interstate 10/12/110 on Interstate 10 eastbound depicted in the above photograph. Vidcap taken 01/96.
A wintertime perspective of the half-mile diagrammatic sign on Interstate 10 eastbound. Another 75 miles of Interstate 10 separate Interstate 110 from the city limits of New Orleans. Photo taken by Eric Stuve (12/17/02).
These two photos show the actual interchange between eastbound Interstate 10 and northbound Interstate 110. The first photo shows the context view of the entire interchange, while the second photo shows the actual signage in place at the gore point. On this day, an accident just east of here caused eastbound Interstate 10 to be backed up, so taking northbound Interstate 110 to avoid the traffic and see more of Baton Rouge was a natural thing to do. Photos taken 08/12/02.
Another wintertime perspective of Interstate 110 from Interstate 10 eastbound. Natchez, Mississippi, the eventual northern control city of Interstate 110 via the connection with U.S.61, is 90 miles to the north at this point. Photo taken by Eric Stuve (12/17/02).
Northern Terminus - U.S. 61 - Baton Rouge, Louisiana
Perspective from Interstate 110 north
Interstate 110 turns west from the half diamond interchange (Exit 8A) with Louisiana 19 on the one mile approach to U.S. 61 (Scenic Highway). The freeway reduces from six to four lanes here. Photo taken 05/19/14.
Leading west, I-110 passes though residential areas of Scotlandville through to the two-wye interchange (Exits 8B/C) with U.S. 61 (Scenic Highway). Photo taken 05/19/14.
A pair of end signs precede the ramp split for U.S. 61 (Scenic Highway) on I-110 north. Photo taken 01/05/09.
U.S. 61 (Scenic Highway) angles southeast from Interstate 110 to Southern University and U.S. 190 (Airline Highway). North from Baton Rouge, the four-lane, divided highway continues to St. Francisville and Natchez, Mississippi. Photo taken 05/19/14.
Historic Perspective from Interstate 110 north
The Louisiana 19 off-ramp (Exit 8A) was originally designated Exit 8. Sign changes made by 2009 included a new sign bridge here for the state highway leading north to Baker. Photo taken 08/12/02.
New signs installed along I-110 north at Exit 8A were carbon copied to use Clearview font by 2013. Photo taken 01/05/09.
With the exception of exit renumbering, the U.S. 61 overheads posted at the viaduct end above Fletcher Williams Drive were carbon copied on sign replacements. Photo taken 08/12/02.
This end sign was posted one quarter mile ahead of the northbound on-ramp to U.S. 61 (Scenic Highway) and the left-hand turn for U.S. 61 south. Photo taken 08/12/02.
U.S. 61 travels another 38 miles within the Pelican State, through to Wilkinson County, Mississippi. Photo taken 08/12/02.
Perspective from U.S. 61 south
This shield assembly precedes the southbound split of Interstate 110 (Dr. Martin Luther King, Jr. Memorial Freeway) on U.S. 61 (Scenic Highway) at Scotlandville. Photo taken 05/19/14.
Interstate 110 begins at a two-wye interchange with U.S. 61 (Scenic Highway) beyond this pedestrian bridge spanning Scenic Highway. Photo taken 05/19/14.
Historic Perspective from U.S. 61 south
Replaced guide sign for I-110 south on U.S. 61 (Scenic Highway) south at Scotlandville in north Baton Rouge. U.S. 61 meets the freeway again along side U.S. 190 on Airline Highway. Photo taken 10/13/03.

Page Updated March 30, 2017.


State Louisiana
Mileage 8.89
Cities Baton Rouge
Junctions I-10
Source: December 31, 2016 Interstate Route Log and Finders List
I-110 Louisiana Annual Average Daily Traffic
From Exit To Exit AADT Composite
I-10 eastbound ramp to I-110 Exit 1A - LA 73 19,528
Exit 1A - LA 73 Exit 1C - Convention St 92,556
Exit 1D - North St Exit 1E - LA 3045 83,925
Exit 2A - Scenic Hwy Exit 3A - Chippewa St 80,129
Exit 3A - Chippewa St Exit 3B - Wyandotte St 81,251
Exit 3B - Mohican St Exit 4 - Evangeline St 73,519
Exit 4 - Evangeline St Exit 5A - Hollywood St 65,598
Exit 5A - Hollywood St Exit 5B - U.S. 61 & 190 66,837
Exit 5B - U.S. 61 & 190 Exit 6 - LA 408 54,827
Exit 6 - LA 408 Exit 8A - LA 19 52,202
Exit 8A - LA 19 Exit 8BC - U.S. 61 29,212
Source: LADOTD Estimated Annual Average Daily Traffic Routine Traffic Counts - 2014

Baton Rouge inset - 1961 Rand McNally North American Road Atlas
An Interstate 410 shield placed along U.S. 190 (Airline Highway) on early 1960s maps alluded to the freeway loop planned from Baton Rouge west to Lobdell.