US Bridges

LA0151 over Little Darbonne Creek

Fair

Lincoln Parish, Louisiana · 2.3 MI W Union Parish LN · Structure no. 053103170602301

Built
1978
47 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
702 ft
10 main spans
Daily traffic
189
2021 count
Owner
State
State Highway Agency

About this bridge

LA0151 over Little Darbonne Creek is a prestressed concrete stringer/multi-beam or girder carrying LA0151 over Little Darbonne Creek in Lincoln Parish, Louisiana. It was built in 1978, so it is 47 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 189 vehicles a day, roughly 19% of them trucks, projected to reach 207 by 2041. The structure is 702 ft (214 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLA0151
CrossesLittle Darbonne Creek
Location2.3 MI W Union Parish LN
RouteState Highway 151
CountyLincoln Parish
StateLouisiana
Coordinates32.69424, -92.5525
Functional classRural Minor 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
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to 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 rating89 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length702 ft (214 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic189 (2021)
Projected traffic207 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 LA0151 over Little Darbonne Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is LA0151 over Little Darbonne 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 November 2023.

How much traffic does LA0151 over Little Darbonne Creek carry?

About 189 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0151 over Little Darbonne Creek?

The structure is 702 ft (214 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns LA0151 over Little Darbonne Creek?

It is owned by the State Highway Agency.