US Bridges

Jefferson Hwy. over Claycut Bayou

Fair

East Baton Rouge Parish, Louisiana · 2.7 MI N of LA 948 · Structure no. 611700770404571

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
9,346
2024 count
Owner
County
County Highway Agency

About this bridge

Jefferson Hwy. over Claycut Bayou is a concrete slab carrying Jefferson Hwy. over Claycut Bayou in East Baton Rouge Parish, Louisiana. It was built in 1963, so it is 62 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 9,346 vehicles a day, roughly 7% of them trucks, projected to reach 10,280 by 2044. The structure is 120 ft (36.6 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesJefferson Hwy.
CrossesClaycut Bayou
Location2.7 MI N of LA 948
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.39014, -91.03397
Functional classUrban 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,346 (2024)
Projected traffic10,280 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$585,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Jefferson Hwy. over Claycut Bayou built?

It was built in 1963, making it 62 years old in 2025.

What condition is Jefferson Hwy. over Claycut 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 October 2024.

How much traffic does Jefferson Hwy. over Claycut Bayou carry?

About 9,346 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Jefferson Hwy. over Claycut Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns Jefferson Hwy. over Claycut Bayou?

It is owned by the County Highway Agency.