US Bridges

LA0103 over Bayou Courtableau

Fair

St. Landry Parish, Louisiana · 4.37 MI South of LA 359 · Structure no. 034903800404371

Built
1937
88 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
271 ft
1 main span
Daily traffic
2,097
2021 count
Owner
State
State Highway Agency

About this bridge

LA0103 over Bayou Courtableau is a steel stringer/multi-beam or girder carrying LA0103 over Bayou Courtableau in St. Landry Parish, Louisiana. It was built in 1937, so it is 88 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 2,097 vehicles a day, roughly 12% of them trucks, projected to reach 2,306 by 2041. The structure is 271 ft (82.6 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesLA0103
CrossesBayou Courtableau
Location4.37 MI South of LA 359
RouteState Highway 103
CountySt. Landry Parish
StateLouisiana
Coordinates30.55911, -91.9552
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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating49.1 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadH 15
Structure length271 ft (82.6 m)
Longest span45 ft (13.7 m)
Deck width33 ft (10.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,097 (2021)
Projected traffic2,306 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0103 over Bayou Courtableau built?

It was built in 1937, making it 88 years old in 2025.

What condition is LA0103 over Bayou Courtableau 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 August 2023.

How much traffic does LA0103 over Bayou Courtableau carry?

About 2,097 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0103 over Bayou Courtableau?

The structure is 271 ft (82.6 m) long with a longest span of 45 ft (13.7 m) and a deck 33 ft wide.

Who owns LA0103 over Bayou Courtableau?

It is owned by the State Highway Agency.