US Bridges

LA1163 over Bayou

Good

Evangeline Parish, Louisiana · 0.52 MI North of LA 29 · Structure no. 032008201200521

Built
1975
50 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
30 ft
4 main spans
Daily traffic
21
2021 count
Owner
State
State Highway Agency

About this bridge

LA1163 over Bayou is a concrete culvert carrying LA1163 over Bayou in Evangeline Parish, Louisiana. It was built in 1975, so it is 50 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 21 vehicles a day, roughly 15% of them trucks, projected to reach 23 by 2041. The structure is 30 ft (9.1 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA1163
CrossesBayou
Location0.52 MI North of LA 29
RouteState Highway 1163
Coordinates30.57556, -92.3184
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span7 ft (2.1 m)
Deck width37 ft (11.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2021)
Projected traffic23 by 2041
Trucks15%
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 LA1163 over Bayou built?

It was built in 1975, making it 50 years old in 2025.

What condition is LA1163 over Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does LA1163 over Bayou carry?

About 21 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA1163 over Bayou?

The structure is 30 ft (9.1 m) long with a longest span of 7 ft (2.1 m) and a deck 37 ft wide.

Who owns LA1163 over Bayou?

It is owned by the State Highway Agency.