US Bridges

LA1138-2 over Contraband Bayou

Fair

Calcasieu Parish, Louisiana · 1.1 Mi. W. of LA 385 · Structure no. 071008100602691

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
722 ft
16 main spans
Daily traffic
20,242
2021 count
Owner
State
State Highway Agency

About this bridge

LA1138-2 over Contraband Bayou is a steel stringer/multi-beam or girder carrying LA1138-2 over Contraband Bayou in Calcasieu Parish, Louisiana. It was built in 1961, so it is 64 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 20,242 vehicles a day, roughly 10% of them trucks, projected to reach 22,266 by 2041. The structure is 722 ft (220.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA1138-2
CrossesContraband Bayou
Location1.1 Mi. W. of LA 385
RouteState Highway 1138
CountyCalcasieu Parish
StateLouisiana
Coordinates30.19823, -93.23791
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans16
Design loadH 15
Structure length722 ft (220.1 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,242 (2021)
Projected traffic22,266 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA1138-2 over Contraband Bayou built?

It was built in 1961, making it 64 years old in 2025.

What condition is LA1138-2 over Contraband Bayou 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 April 2024.

How much traffic does LA1138-2 over Contraband Bayou carry?

About 20,242 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1138-2 over Contraband Bayou?

The structure is 722 ft (220.1 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns LA1138-2 over Contraband Bayou?

It is owned by the State Highway Agency.