US Bridges

LA1177 over Bayou Boeuf

Good

Avoyelles Parish, Louisiana · 1.63 Miles West of South · Structure no. 080500000080635

Built
2015
10 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
4 main spans
Daily traffic
387
2021 count
Owner
State
State Highway Agency

About this bridge

LA1177 over Bayou Boeuf is a prestressed concrete box beam or girders - multiple carrying LA1177 over Bayou Boeuf in Avoyelles Parish, Louisiana. It was built in 2015, so it is 10 years old, younger 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 387 vehicles a day, roughly 10% of them trucks, projected to reach 425 by 2041. The structure is 160 ft (48.8 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA1177
CrossesBayou Boeuf
Location1.63 Miles West of South
RouteState Highway 1177
Coordinates30.96529, -92.2155
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.5 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic387 (2021)
Projected traffic425 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1177 over Bayou Boeuf built?

It was built in 2015, making it 10 years old in 2025.

What condition is LA1177 over Bayou Boeuf 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 January 2024.

How much traffic does LA1177 over Bayou Boeuf carry?

About 387 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1177 over Bayou Boeuf?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns LA1177 over Bayou Boeuf?

It is owned by the State Highway Agency.