US Bridges

LA0116 over Thorny Branch

Good

Rapides Parish, Louisiana · 2.04 MI NE JCT US 165 · Structure no. 084001530102041

Built
1983
42 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
6,942
2021 count
Owner
State
State Highway Agency

About this bridge

LA0116 over Thorny Branch is a concrete slab carrying LA0116 over Thorny Branch in Rapides Parish, Louisiana. It was built in 1983, so it is 42 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 6,942 vehicles a day, roughly 4% of them trucks, projected to reach 7,636 by 2041. The structure is 80 ft (24.4 m) long and 47 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0116
CrossesThorny Branch
Location2.04 MI NE JCT US 165
RouteState Highway 116
Coordinates31.37426, -92.3787
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 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 width47 ft (14.3 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,942 (2021)
Projected traffic7,636 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0116 over Thorny Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA0116 over Thorny 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 September 2024.

How much traffic does LA0116 over Thorny Branch carry?

About 6,942 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is LA0116 over Thorny Branch?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 47 ft wide.

Who owns LA0116 over Thorny Branch?

It is owned by the State Highway Agency.