US Bridges

Bryan Road over W. Grand Marais Bayou

Fair

Jefferson Davis Parish, Louisiana · 1.9 MI W of LA 26 · Structure no. 072730193924211

Built
1977
48 years old
Condition
Fair
inspected August 2024
Type
Channel Beam
Prestressed Concrete
Length
80 ft
4 main spans
Daily traffic
30
2019 count
Owner
County
County Highway Agency

About this bridge

Bryan Road over W. Grand Marais Bayou is a prestressed concrete channel beam carrying Bryan Road over W. Grand Marais Bayou in Jefferson Davis Parish, Louisiana. It was built in 1977, so it is 48 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 30 vehicles a day, projected to reach 33 by 2039. The structure is 80 ft (24.4 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBryan Road
CrossesW. Grand Marais Bayou
Location1.9 MI W of LA 26
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.32061, -92.7026
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating25 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2019)
Projected traffic33 by 2039
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Bryan Road over W. Grand Marais Bayou built?

It was built in 1977, making it 48 years old in 2025.

What condition is Bryan Road over W. 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 2024.

How much traffic does Bryan Road over W. Grand Marais Bayou carry?

About 30 vehicles per day (2019 count).

How long is Bryan Road over W. Grand Marais Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 17 ft wide.

Who owns Bryan Road over W. Grand Marais Bayou?

It is owned by the County Highway Agency.