US Bridges

US0190 over Bayou Plaquemine

Fair

St. Landry Parish, Louisiana · 3.5 MI East of LA 35 · Structure no. 034900121203501

Built
1931
94 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
36 ft
4 main spans
Daily traffic
11,913
2021 count
Owner
State
State Highway Agency

About this bridge

US0190 over Bayou Plaquemine is a concrete culvert carrying US0190 over Bayou Plaquemine in St. Landry Parish, Louisiana. It was built in 1931, so it is 94 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 11,913 vehicles a day, roughly 10% of them trucks, projected to reach 13,104 by 2041. The structure is 36 ft (11 m) long and 126 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS0190
CrossesBayou Plaquemine
Location3.5 MI East of LA 35
RouteU.S. Route 190
CountySt. Landry Parish
StateLouisiana
Coordinates30.53208, -92.1307
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length36 ft (11 m)
Longest span8 ft (2.4 m)
Deck width126 ft (38.4 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,913 (2021)
Projected traffic13,104 by 2041
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0190 over Bayou Plaquemine built?

It was built in 1931, making it 94 years old in 2025.

What condition is US0190 over Bayou Plaquemine 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 December 2024.

How much traffic does US0190 over Bayou Plaquemine carry?

About 11,913 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0190 over Bayou Plaquemine?

The structure is 36 ft (11 m) long with a longest span of 8 ft (2.4 m) and a deck 126 ft wide.

Who owns US0190 over Bayou Plaquemine?

It is owned by the State Highway Agency.