US Bridges

Mermentau River RD over Kings Bayou

FairPosted for load

Cameron Parish, Louisiana · 0.6 Miles North of LA 82 · Structure no. 071200000500208

Built
2015
10 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
82
2020 count
Owner
County
County Highway Agency

About this bridge

Mermentau River RD over Kings Bayou is a concrete slab carrying Mermentau River RD over Kings Bayou in Cameron Parish, Louisiana. It was built in 2015, so it is 10 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 82 vehicles a day, projected to reach 90 by 2040. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesMermentau River RD
CrossesKings Bayou
Location0.6 Miles North of LA 82
RouteCounty Highway 0
CountyCameron Parish
StateLouisiana
Coordinates29.77622, -93.00836
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2020)
Projected traffic90 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Mermentau River RD over Kings Bayou built?

It was built in 2015, making it 10 years old in 2025.

What condition is Mermentau River RD over Kings 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 March 2024.

How much traffic does Mermentau River RD over Kings Bayou carry?

About 82 vehicles per day (2020 count).

How long is Mermentau River RD over Kings Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Mermentau River RD over Kings Bayou?

It is owned by the County Highway Agency.