US Bridges

LA0028 over Calcasieu River

Fair

Vernon Parish, Louisiana · 8.6 MI East of LA 121 · Structure no. 085804170117451

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,130 ft
25 main spans
Daily traffic
6,307
2021 count
Owner
State
State Highway Agency

About this bridge

LA0028 over Calcasieu River is a prestressed concrete stringer/multi-beam or girder carrying LA0028 over Calcasieu River in Vernon Parish, Louisiana. It was built in 1975, so it is 50 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 6,307 vehicles a day, roughly 15% of them trucks, projected to reach 6,937 by 2041. The structure is 1,130 ft (344.4 m) long and 42 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesLA0028
CrossesCalcasieu River
Location8.6 MI East of LA 121
RouteState Highway 28
Coordinates31.21568, -92.91222
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans25
Design loadHS 20
Structure length1,130 ft (344.4 m)
Longest span45 ft (13.7 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,307 (2021)
Projected traffic6,937 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 LA0028 over Calcasieu River built?

It was built in 1975, making it 50 years old in 2025.

What condition is LA0028 over Calcasieu River 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 April 2024.

How much traffic does LA0028 over Calcasieu River carry?

About 6,307 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0028 over Calcasieu River?

The structure is 1,130 ft (344.4 m) long with a longest span of 45 ft (13.7 m) and a deck 42 ft wide.

Who owns LA0028 over Calcasieu River?

It is owned by the State Highway Agency.