US Bridges

LA0699 over Bayou Grand Marais

Fair

Vermilion Parish, Louisiana · 1.4 MI S. of LA 92 · Structure no. 035702140101401

Built
1962
63 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
442
2020 count
Owner
State
State Highway Agency

About this bridge

LA0699 over Bayou Grand Marais is a concrete slab carrying LA0699 over Bayou Grand Marais in Vermilion Parish, Louisiana. It was built in 1962, so it is 63 years old, older 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 442 vehicles a day, roughly 15% of them trucks, projected to reach 486 by 2040. The structure is 100 ft (30.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA0699
CrossesBayou Grand Marais
Location1.4 MI S. of LA 92
RouteState Highway 699
CountyVermilion Parish
StateLouisiana
Coordinates30.08736, -92.2932
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic442 (2020)
Projected traffic486 by 2040
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 LA0699 over Bayou Grand Marais built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA0699 over Bayou Grand Marais 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 February 2023.

How much traffic does LA0699 over Bayou Grand Marais carry?

About 442 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is LA0699 over Bayou Grand Marais?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0699 over Bayou Grand Marais?

It is owned by the State Highway Agency.