US Bridges

LA0392 over Elder Branch

Good

Vernon Parish, Louisiana · 4.47 M. N. of Jct. LA 111 · Structure no. 085801350104751

Built
1998
27 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
485
2021 count
Owner
State
State Highway Agency

About this bridge

LA0392 over Elder Branch is a concrete slab carrying LA0392 over Elder Branch in Vernon Parish, Louisiana. It was built in 1998, so it is 27 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 485 vehicles a day, roughly 14% of them trucks, projected to reach 533 by 2041. The structure is 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesLA0392
CrossesElder Branch
Location4.47 M. N. of Jct. LA 111
RouteState Highway 392
Coordinates31.28915, -93.4103
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic485 (2021)
Projected traffic533 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0392 over Elder Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is LA0392 over Elder Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does LA0392 over Elder Branch carry?

About 485 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0392 over Elder Branch?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0392 over Elder Branch?

It is owned by the State Highway Agency.