US Bridges

LA1192 over Johnson Canal

Good

Avoyelles Parish, Louisiana · 3.63 Mi. N of N JCT LA 10 · Structure no. 080508050603631

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
476
2021 count
Owner
State
State Highway Agency

About this bridge

LA1192 over Johnson Canal is a concrete culvert carrying LA1192 over Johnson Canal in Avoyelles Parish, Louisiana. It was built in 2004, so it is 21 years old, younger 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 476 vehicles a day, roughly 10% of them trucks, projected to reach 523 by 2041. The structure is 21 ft (6.4 m) long and 86 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA1192
CrossesJohnson Canal
Location3.63 Mi. N of N JCT LA 10
RouteState Highway 1192
Coordinates31.17415, -92.0655
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width86 ft (26.2 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic476 (2021)
Projected traffic523 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1192 over Johnson Canal built?

It was built in 2004, making it 21 years old in 2025.

What condition is LA1192 over Johnson Canal 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 January 2024.

How much traffic does LA1192 over Johnson Canal carry?

About 476 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1192 over Johnson Canal?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 86 ft wide.

Who owns LA1192 over Johnson Canal?

It is owned by the State Highway Agency.