US Bridges

Fannin RD over Lapine Bayou

Good

Ouachita Parish, Louisiana · 1.7 Mile East HWY 557 · Structure no. 053732245921061

Built
1985
40 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
83
1982 count
Owner
County
County Highway Agency

About this bridge

Fannin RD over Lapine Bayou is a concrete slab carrying Fannin RD over Lapine Bayou in Ouachita Parish, Louisiana. It was built in 1985, so it is 40 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 83 vehicles a day, projected to reach 91 by 2002. The structure is 57 ft (17.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFannin RD
CrossesLapine Bayou
Location1.7 Mile East HWY 557
RouteCounty Highway 0
Coordinates32.41017, -92.17583
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83 (1982)
Projected traffic91 by 2002
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Fannin RD over Lapine Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is Fannin RD over Lapine 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 May 2024.

How much traffic does Fannin RD over Lapine Bayou carry?

About 83 vehicles per day (1982 count).

How long is Fannin RD over Lapine Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Fannin RD over Lapine Bayou?

It is owned by the County Highway Agency.