US Bridges

Perkins RD over Molar Bayou

Fair

Livingston Parish, Louisiana · .75 Miles South of LA1024 · Structure no. 623230334905451

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
21 ft
3 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

Perkins RD over Molar Bayou is a steel culvert carrying Perkins RD over Molar Bayou in Livingston Parish, Louisiana. It was built in 1993, so it is 32 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.

It carries about 400 vehicles a day, projected to reach 440 by 2042. The structure is 21 ft (6.4 m) long and 76 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesPerkins RD
CrossesMolar Bayou
Location.75 Miles South of LA1024
RouteCounty Highway 0
CountyLivingston Parish
StateLouisiana
Coordinates30.55714, -90.90774
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width76 ft (23.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic440 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$118,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Perkins RD over Molar Bayou built?

It was built in 1993, making it 32 years old in 2025.

What condition is Perkins RD over Molar 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 Perkins RD over Molar Bayou carry?

About 400 vehicles per day (2022 count).

How long is Perkins RD over Molar Bayou?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m) and a deck 76 ft wide.

Who owns Perkins RD over Molar Bayou?

It is owned by the County Highway Agency.