US Bridges

US0190 over Bayou Calahan

Fair

St. Landry Parish, Louisiana · 0.2 MI East of LA 749 · Structure no. 034900121206281

Built
1931
94 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
20,603
2021 count
Owner
State
State Highway Agency

About this bridge

US0190 over Bayou Calahan is a concrete culvert carrying US0190 over Bayou Calahan 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 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 20,603 vehicles a day, roughly 10% of them trucks, projected to reach 22,663 by 2041. The structure is 22 ft (6.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0190
CrossesBayou Calahan
Location0.2 MI East of LA 749
RouteU.S. Route 190
CountySt. Landry Parish
StateLouisiana
Coordinates30.53232, -92.0856
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width43 ft (13 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,603 (2021)
Projected traffic22,663 by 2041
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$163,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US0190 over Bayou Calahan built?

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

What condition is US0190 over Bayou Calahan 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 Calahan carry?

About 20,603 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0190 over Bayou Calahan?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 43 ft wide.

Who owns US0190 over Bayou Calahan?

It is owned by the State Highway Agency.