US Bridges

Berken Road over Grand Marais Bayou

Fair

Jefferson Davis Parish, Louisiana · 1.5 Mi. N. of LA 1126 · Structure no. 072730124924281

Built
1978
47 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Prestressed Concrete
Length
48 ft
2 main spans
Daily traffic
40
2019 count
Owner
County
County Highway Agency

About this bridge

Berken Road over Grand Marais Bayou is a prestressed concrete channel beam carrying Berken Road over Grand Marais Bayou in Jefferson Davis Parish, Louisiana. It was built in 1978, so it is 47 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 40 vehicles a day, projected to reach 44 by 2039. The structure is 48 ft (14.6 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBerken Road
CrossesGrand Marais Bayou
Location1.5 Mi. N. of LA 1126
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.20726, -92.7123
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span24 ft (7.3 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2019)
Projected traffic44 by 2039
Trucks—
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

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 Berken Road over Grand Marais Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is Berken Road 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 July 2024.

How much traffic does Berken Road over Grand Marais Bayou carry?

About 40 vehicles per day (2019 count).

How long is Berken Road over Grand Marais Bayou?

The structure is 48 ft (14.6 m) long with a longest span of 24 ft (7.3 m) and a deck 22 ft wide.

Who owns Berken Road over Grand Marais Bayou?

It is owned by the County Highway Agency.