US Bridges

LA0043 over I-12

Fair

Livingston Parish, Louisiana · 3 MI N. of LA 42 · Structure no. 623202600602931

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
11 main spans
Daily traffic
9,837
2021 count
Owner
State
State Highway Agency

About this bridge

LA0043 over I-12 is a prestressed concrete stringer/multi-beam or girder carrying LA0043 over I-12 in Livingston Parish, Louisiana. It was built in 1968, so it is 57 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 9,837 vehicles a day, roughly 9% of them trucks, projected to reach 10,820 by 2041. The structure is 222 ft (67.7 m) long and 33 ft wide.

CarriesLA0043
CrossesI-12
Location3 MI N. of LA 42
RouteState Highway 43
Coordinates30.47751, -90.5787
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,837 (2021)
Projected traffic10,820 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0043 over I-12 built?

It was built in 1968, making it 57 years old in 2025.

What condition is LA0043 over I-12 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 February 2024.

How much traffic does LA0043 over I-12 carry?

About 9,837 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0043 over I-12?

The structure is 222 ft (67.7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0043 over I-12?

It is owned by the State Highway Agency.