US Bridges

LA0447 over Canal

Fair

Livingston Parish, Louisiana · 1.2 M S of I-12 · Structure no. 623202680106971

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
59 ft
3 main spans
Daily traffic
34,245
2021 count
Owner
State
State Highway Agency

About this bridge

LA0447 over Canal is a concrete slab carrying LA0447 over Canal in Livingston Parish, Louisiana. It was built in 1958, so it is 67 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 34,245 vehicles a day, roughly 8% of them trucks, projected to reach 37,669 by 2041. The structure is 59 ft (18 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesLA0447
CrossesCanal
Location1.2 M S of I-12
RouteState Highway 447
CountyLivingston Parish
StateLouisiana
Coordinates30.4501, -90.8624
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,245 (2021)
Projected traffic37,669 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$319,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0447 over Canal built?

It was built in 1958, making it 67 years old in 2025.

What condition is LA0447 over 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 March 2024.

How much traffic does LA0447 over Canal carry?

About 34,245 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA0447 over Canal?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns LA0447 over Canal?

It is owned by the State Highway Agency.