US Bridges

LA0015 over Horse Trough Creek

Fair

Union Parish, Louisiana · 6.2 MI North of LA 549 · Structure no. 055601540206211

Built
1955
70 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
50 ft
5 main spans
Daily traffic
5,557
2021 count
Owner
State
State Highway Agency

About this bridge

LA0015 over Horse Trough Creek is a concrete culvert carrying LA0015 over Horse Trough Creek in Union Parish, Louisiana. It was built in 1955, so it is 70 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 5 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 5,557 vehicles a day, roughly 15% of them trucks, projected to reach 6,112 by 2041. The structure is 50 ft (15.2 m) long and 62 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA0015
CrossesHorse Trough Creek
Location6.2 MI North of LA 549
RouteState Highway 15
CountyUnion Parish
StateLouisiana
Coordinates32.87615, -92.4904
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length50 ft (15.2 m)
Longest span9 ft (2.7 m)
Deck width62 ft (19 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,557 (2021)
Projected traffic6,112 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 LA0015 over Horse Trough Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is LA0015 over Horse Trough Creek 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 LA0015 over Horse Trough Creek carry?

About 5,557 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0015 over Horse Trough Creek?

The structure is 50 ft (15.2 m) long with a longest span of 9 ft (2.7 m) and a deck 62 ft wide.

Who owns LA0015 over Horse Trough Creek?

It is owned by the State Highway Agency.