US Bridges

LA0108 over I-10

Fair

Calcasieu Parish, Louisiana · 3.0 Miles East of JCT LA · Structure no. 071008101905252

Built
1962
63 years old, rebuilt 2008
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
2 main spans
Daily traffic
10,981
2021 count
Owner
State
State Highway Agency

About this bridge

LA0108 over I-10 is a steel stringer/multi-beam or girder carrying LA0108 over I-10 in Calcasieu Parish, Louisiana. It was built in 1962 and reconstructed in 2008, so it is 63 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 10,981 vehicles a day, roughly 10% of them trucks, projected to reach 12,079 by 2041. The structure is 360 ft (109.7 m) long and 47 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesLA0108
CrossesI-10
Location3.0 Miles East of JCT LA
RouteState Highway 108
CountyCalcasieu Parish
StateLouisiana
Coordinates30.21667, -93.32555
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length360 ft (109.7 m)
Longest span80 ft (24.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,981 (2021)
Projected traffic12,079 by 2041
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0108 over I-10 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2008.

What condition is LA0108 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 May 2023.

How much traffic does LA0108 over I-10 carry?

About 10,981 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA0108 over I-10?

The structure is 360 ft (109.7 m) long with a longest span of 80 ft (24.4 m) and a deck 47 ft wide.

Who owns LA0108 over I-10?

It is owned by the State Highway Agency.