US Bridges

LA0028 over Indian Bayou

Fair

La Salle Parish, Louisiana · 4.3 MI E of LA 115 · Structure no. 583000740304091

Built
1960
65 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
282 ft
7 main spans
Daily traffic
5,026
2021 count
Owner
State
State Highway Agency

About this bridge

LA0028 over Indian Bayou is a steel stringer/multi-beam or girder carrying LA0028 over Indian Bayou in La Salle Parish, Louisiana. It was built in 1960, so it is 65 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 5,026 vehicles a day, roughly 20% of them trucks, projected to reach 5,528 by 2041. The structure is 282 ft (86 m) long and 33 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

CarriesLA0028
CrossesIndian Bayou
Location4.3 MI E of LA 115
RouteState Highway 28
Coordinates31.46524, -92.1054
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length282 ft (86 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,026 (2021)
Projected traffic5,528 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 km)
TollOn a free road
National Highway SystemYes

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 LA0028 over Indian Bayou built?

It was built in 1960, making it 65 years old in 2025.

What condition is LA0028 over Indian 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 June 2023.

How much traffic does LA0028 over Indian Bayou carry?

About 5,026 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is LA0028 over Indian Bayou?

The structure is 282 ft (86 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns LA0028 over Indian Bayou?

It is owned by the State Highway Agency.