US Bridges

LA1054 over Big Creek

FairPosted for load

Tangipahoa Parish, Louisiana · LA1054 · Structure no. 625308531701221

Built
1955
70 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
172 ft
9 main spans
Daily traffic
1,264
2021 count
Owner
State
State Highway Agency

About this bridge

LA1054 over Big Creek is a wood or timber stringer/multi-beam or girder carrying LA1054 over Big Creek in Tangipahoa 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,264 vehicles a day, roughly 13% of them trucks, projected to reach 1,390 by 2041. The structure is 172 ft (52.4 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesLA1054
CrossesBig Creek
LocationLA1054
RouteState Highway 1054
CountyTangipahoa Parish
StateLouisiana
Coordinates30.79079, -90.4438
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length172 ft (52.4 m)
Longest span19 ft (5.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,264 (2021)
Projected traffic1,390 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 LA1054 over Big Creek built?

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

What condition is LA1054 over Big 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 May 2023.

How much traffic does LA1054 over Big Creek carry?

About 1,264 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA1054 over Big Creek?

The structure is 172 ft (52.4 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns LA1054 over Big Creek?

It is owned by the State Highway Agency.