US Bridges

LA0928 over Jim Bayou

Fair

Ascension Parish, Louisiana · 0.8 M W of I-10&LA 73 · Structure no. 610308030701261

Built
1966
59 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
5,446
2021 count
Owner
State
State Highway Agency

About this bridge

LA0928 over Jim Bayou is a concrete culvert carrying LA0928 over Jim Bayou in Ascension Parish, Louisiana. It was built in 1966, so it is 59 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 5,446 vehicles a day, roughly 11% of them trucks, projected to reach 5,990 by 2041. The structure is 27 ft (8.2 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0928
CrossesJim Bayou
Location0.8 M W of I-10&LA 73
RouteState Highway 928
Coordinates30.26851, -90.99998
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width37 ft (11.3 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,446 (2021)
Projected traffic5,990 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 LA0928 over Jim Bayou built?

It was built in 1966, making it 59 years old in 2025.

What condition is LA0928 over Jim 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 May 2024.

How much traffic does LA0928 over Jim Bayou carry?

About 5,446 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0928 over Jim Bayou?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 37 ft wide.

Who owns LA0928 over Jim Bayou?

It is owned by the State Highway Agency.