US Bridges

LA0022 over Amite Diversion Canal

Fair

Livingston Parish, Louisiana · LA0022 · Structure no. 623202660300001

Built
1960
65 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
482 ft
8 main spans
Daily traffic
8,068
2021 count
Owner
State
State Highway Agency

About this bridge

LA0022 over Amite Diversion Canal is a steel stringer/multi-beam or girder carrying LA0022 over Amite Diversion Canal in Livingston Parish, Louisiana. It was built in 1960, so it is 65 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 8,068 vehicles a day, roughly 11% of them trucks, projected to reach 8,874 by 2041. The structure is 482 ft (146.9 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0022
CrossesAmite Diversion Canal
LocationLA0022
RouteState Highway 22
CountyLivingston Parish
StateLouisiana
Coordinates30.24965, -90.77466
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating52 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length482 ft (146.9 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,068 (2021)
Projected traffic8,874 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0022 over Amite Diversion Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is LA0022 over Amite Diversion 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 January 2024.

How much traffic does LA0022 over Amite Diversion Canal carry?

About 8,068 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0022 over Amite Diversion Canal?

The structure is 482 ft (146.9 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns LA0022 over Amite Diversion Canal?

It is owned by the State Highway Agency.