US Bridges

US0190 over Boagni Swamp

Good

St. Landry Parish, Louisiana · 1.1 MI East of I-49 · Structure no. 034900121302101

Built
1951
74 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
32 ft
5 main spans
Daily traffic
21,716
2018 count
Owner
State
State Highway Agency

About this bridge

US0190 over Boagni Swamp is a concrete culvert carrying US0190 over Boagni Swamp in St. Landry Parish, Louisiana. It was built in 1951, so it is 74 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 21,716 vehicles a day, roughly 24% of them trucks, projected to reach 23,887 by 2038. The structure is 32 ft (9.8 m) long and 138 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS0190
CrossesBoagni Swamp
Location1.1 MI East of I-49
RouteU.S. Route 190
Coordinates30.53816, -92.0489
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum 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 spans5
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span6 ft (1.8 m)
Deck width138 ft (42.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,716 (2018)
Projected traffic23,887 by 2038
Trucks24%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Boagni Swamp built?

It was built in 1951, making it 74 years old in 2025.

What condition is US0190 over Boagni Swamp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does US0190 over Boagni Swamp carry?

About 21,716 vehicles per day (2018 count), of which roughly 24% are trucks.

How long is US0190 over Boagni Swamp?

The structure is 32 ft (9.8 m) long with a longest span of 6 ft (1.8 m) and a deck 138 ft wide.

Who owns US0190 over Boagni Swamp?

It is owned by the State Highway Agency.