US Bridges

LA0043 over Smary Branch

Fair

Livingston Parish, Louisiana · 0.1 M N of LA 1064 · Structure no. 623202600702861

Built
1980
45 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
39 ft
2 main spans
Daily traffic
3,362
2021 count
Owner
State
State Highway Agency

About this bridge

LA0043 over Smary Branch is a concrete slab carrying LA0043 over Smary Branch in Livingston Parish, Louisiana. It was built in 1980, so it is 45 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 3,362 vehicles a day, roughly 12% of them trucks, projected to reach 3,698 by 2041. The structure is 39 ft (11.9 m) long and 35 ft wide.

CarriesLA0043
CrossesSmary Branch
Location0.1 M N of LA 1064
RouteState Highway 43
Coordinates30.54546, -90.5839
Functional classRural Major 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,362 (2021)
Projected traffic3,698 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0043 over Smary Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is LA0043 over Smary Branch 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 Smary Branch carry?

About 3,362 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0043 over Smary Branch?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0043 over Smary Branch?

It is owned by the State Highway Agency.