US Bridges

LA0383 over I-10

Fair

Calcasieu Parish, Louisiana · LA 383 over I-10 · Structure no. 071001970201241

Built
1964
61 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete
Length
222 ft
4 main spans
Daily traffic
677
2021 count
Owner
State
State Highway Agency

About this bridge

LA0383 over I-10 is a concrete tee beam carrying LA0383 over I-10 in Calcasieu Parish, Louisiana. It was built in 1964, so it is 61 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 5 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 677 vehicles a day, roughly 17% of them trucks, projected to reach 744 by 2041. The structure is 222 ft (67.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA0383
CrossesI-10
LocationLA 383 over I-10
RouteState Highway 383
CountyCalcasieu Parish
StateLouisiana
Coordinates30.2491, -93.0138
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating38 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span75 ft (22.9 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic677 (2021)
Projected traffic744 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$982,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0383 over I-10 built?

It was built in 1964, making it 61 years old in 2025.

What condition is LA0383 over I-10 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 2023.

How much traffic does LA0383 over I-10 carry?

About 677 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is LA0383 over I-10?

The structure is 222 ft (67.7 m) long with a longest span of 75 ft (22.9 m) and a deck 33 ft wide.

Who owns LA0383 over I-10?

It is owned by the State Highway Agency.