US Bridges

LA0118 over Rocky Branch

Good

Natchitoches Parish, Louisiana · 5.59MI East of LA 117 · Structure no. 083501170405591

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
164
2021 count
Owner
State
State Highway Agency

About this bridge

LA0118 over Rocky Branch is a concrete slab carrying LA0118 over Rocky Branch in Natchitoches 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 164 vehicles a day, roughly 14% of them trucks, projected to reach 180 by 2041. The structure is 100 ft (30.5 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0118
CrossesRocky Branch
Location5.59MI East of LA 117
RouteState Highway 118
Coordinates31.39861, -93.0922
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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 spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic164 (2021)
Projected traffic180 by 2041
Trucks14%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0118 over Rocky Branch built?

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

What condition is LA0118 over Rocky 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 March 2024.

How much traffic does LA0118 over Rocky Branch carry?

About 164 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0118 over Rocky Branch?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0118 over Rocky Branch?

It is owned by the State Highway Agency.