US Bridges

LA0015 over Onemile Creek

Fair

Union Parish, Louisiana · 1.0 MI North of LA 33 · Structure no. 055601540101001

Built
1953
72 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
8,290
2021 count
Owner
State
State Highway Agency

About this bridge

LA0015 over Onemile Creek is a concrete slab carrying LA0015 over Onemile Creek in Union Parish, Louisiana. It was built in 1953, so it is 72 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 8,290 vehicles a day, roughly 16% of them trucks, projected to reach 9,119 by 2041. The structure is 80 ft (24.4 m) long and 29 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesLA0015
CrossesOnemile Creek
Location1.0 MI North of LA 33
RouteState Highway 15
Coordinates32.79488, -92.4083
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,290 (2021)
Projected traffic9,119 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$412,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0015 over Onemile Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is LA0015 over Onemile 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 Onemile Creek carry?

About 8,290 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is LA0015 over Onemile Creek?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA0015 over Onemile Creek?

It is owned by the State Highway Agency.