US Bridges

LA0408 over KCS & Icg Railroad

Fair

East Baton Rouge Parish, Louisiana · 0.01 Mi. W. of US 61 · Structure no. 611702550100901

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,208 ft
25 main spans
Daily traffic
26,976
2021 count
Owner
State
State Highway Agency

About this bridge

LA0408 over KCS & Icg Railroad is a prestressed concrete stringer/multi-beam or girder carrying LA0408 over KCS & Icg Railroad in East Baton Rouge Parish, Louisiana. It was built in 1972, so it is 53 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 26,976 vehicles a day, roughly 11% of them trucks, projected to reach 29,673 by 2041. The structure is 1,208 ft (368.2 m) long and 73 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesLA0408
CrossesKCS & Icg Railroad
Location0.01 Mi. W. of US 61
RouteState Highway 408
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.52042, -91.18453
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans25
Design loadHS 20
Structure length1,208 ft (368.2 m)
Longest span100 ft (30.5 m)
Deck width73 ft (22.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,976 (2021)
Projected traffic29,673 by 2041
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$6.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0408 over KCS & Icg Railroad built?

It was built in 1972, making it 53 years old in 2025.

What condition is LA0408 over KCS & Icg Railroad in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does LA0408 over KCS & Icg Railroad carry?

About 26,976 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0408 over KCS & Icg Railroad?

The structure is 1,208 ft (368.2 m) long with a longest span of 100 ft (30.5 m) and a deck 73 ft wide.

Who owns LA0408 over KCS & Icg Railroad?

It is owned by the State Highway Agency.