US Bridges

LA0133 over Bayou Lafourche

Fair

Morehouse Parish, Louisiana · 7.4 MI N of US 80 · Structure no. 053401630200001

Built
1992
33 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
450 ft
9 main spans
Daily traffic
1,954
2021 count
Owner
State
State Highway Agency

About this bridge

LA0133 over Bayou Lafourche is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0133 over Bayou Lafourche in Morehouse Parish, Louisiana. It was built in 1992, so it is 33 years old, younger 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 1,954 vehicles a day, roughly 19% of them trucks, projected to reach 2,149 by 2041. The structure is 450 ft (137.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA0133
CrossesBayou Lafourche
Location7.4 MI N of US 80
RouteState Highway 133
CountyMorehouse Parish
StateLouisiana
Coordinates32.5647, -91.78926
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length450 ft (137.2 m)
Longest span50 ft (15.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,954 (2021)
Projected traffic2,149 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 LA0133 over Bayou Lafourche built?

It was built in 1992, making it 33 years old in 2025.

What condition is LA0133 over Bayou Lafourche 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 December 2024.

How much traffic does LA0133 over Bayou Lafourche carry?

About 1,954 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0133 over Bayou Lafourche?

The structure is 450 ft (137.2 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.

Who owns LA0133 over Bayou Lafourche?

It is owned by the State Highway Agency.