US Bridges

LA0877 over Bayou Macon

Fair

East Carroll Parish, Louisiana · .71 MI West of LA 577 · Structure no. 051803370400001

Built
1983
42 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
502 ft
10 main spans
Daily traffic
284
2021 count
Owner
State
State Highway Agency

About this bridge

LA0877 over Bayou Macon is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0877 over Bayou Macon in East Carroll Parish, Louisiana. It was built in 1983, so it is 42 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 284 vehicles a day, roughly 19% of them trucks, projected to reach 312 by 2041. The structure is 502 ft (153 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0877
CrossesBayou Macon
Location.71 MI West of LA 577
RouteState Highway 877
Coordinates32.59105, -91.43594
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length502 ft (153 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic284 (2021)
Projected traffic312 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 LA0877 over Bayou Macon built?

It was built in 1983, making it 42 years old in 2025.

What condition is LA0877 over Bayou Macon 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 March 2023.

How much traffic does LA0877 over Bayou Macon carry?

About 284 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0877 over Bayou Macon?

The structure is 502 ft (153 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns LA0877 over Bayou Macon?

It is owned by the State Highway Agency.