US Bridges

LA0417 over Johnson Canal

Fair

Pointe Coupee Parish, Louisiana · LA0417 · Structure no. 613908390400161

Built
1963
62 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
503
2021 count
Owner
State
State Highway Agency

About this bridge

LA0417 over Johnson Canal is a concrete slab carrying LA0417 over Johnson Canal in Pointe Coupee Parish, Louisiana. It was built in 1963, so it is 62 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 503 vehicles a day, roughly 14% of them trucks, projected to reach 553 by 2041. The structure is 160 ft (48.8 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesLA0417
CrossesJohnson Canal
LocationLA0417
RouteState Highway 417
CountyPointe Coupee Parish
StateLouisiana
Coordinates30.76493, -91.75004
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
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 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 rating26.8 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic503 (2021)
Projected traffic553 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

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 LA0417 over Johnson Canal built?

It was built in 1963, making it 62 years old in 2025.

What condition is LA0417 over Johnson Canal 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 February 2023.

How much traffic does LA0417 over Johnson Canal carry?

About 503 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0417 over Johnson Canal?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0417 over Johnson Canal?

It is owned by the State Highway Agency.