US Bridges

LA0102 over Grand Marais Bayou

Fair

Jefferson Davis Parish, Louisiana · .64 MI East of LA 395 · Structure no. 072701990208941

Built
1990
35 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
57 ft
4 main spans
Daily traffic
3,728
2021 count
Owner
State
State Highway Agency

About this bridge

LA0102 over Grand Marais Bayou is a concrete slab carrying LA0102 over Grand Marais Bayou in Jefferson Davis Parish, Louisiana. It was built in 1990, so it is 35 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 5 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 3,728 vehicles a day, roughly 17% of them trucks, projected to reach 4,100 by 2041. The structure is 57 ft (17.4 m) long and 43 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesLA0102
CrossesGrand Marais Bayou
Location.64 MI East of LA 395
RouteState Highway 102
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.34999, -92.6938
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,728 (2021)
Projected traffic4,100 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 LA0102 over Grand Marais Bayou built?

It was built in 1990, making it 35 years old in 2025.

What condition is LA0102 over Grand Marais 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 August 2023.

How much traffic does LA0102 over Grand Marais Bayou carry?

About 3,728 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is LA0102 over Grand Marais Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 43 ft wide.

Who owns LA0102 over Grand Marais Bayou?

It is owned by the State Highway Agency.