Interstate 110 Louisiana
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 LA 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 (LA 3022), the short segment opened south to North Boulevard and north to LA 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.
The urban Interstate numerology submitted to the American Association of State Highway Officials (AASHO) by the Louisiana Department of Highways on March 27, 1958 assigned Route B10 to the loop at Baton Rouge. Changed to Interstate 410 per correspondence with AASHO on July 2, 1958, the route was approved on November 10, 1958.
Source: December 31, 2021 Interstate Route Log and Finders List
I-110 Annual Average Daily Traffic (AADT)
Source: 2014/2017 AADT LADOTD Traffic Monitoring
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.
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.
North End – Baton Rouge, Louisiana
North End Throwback
South End – Baton Rouge, Louisiana
Peak hour traffic congestion is a regular occurrence at Exit 155B due both to the lane drop for I-110 north and the sharp curve of the I-10 eastbound viaduct. 2014 counts recorded by LADOTD showed 92,084 vpd along the I-10 mainline here and 19,528 vpd using the ramps to I-110 north and from I-110 south. Photo taken 05/19/14.
South End Throwback
The construction timeline for Interstate 110 was derived from Louisiana Official Highway Maps.
Page updated July 2, 2022.