US Bridges

LA0022 over Tchefuncte R/Madisonvill

Fair

St. Tammany Parish, Louisiana · Madisonville (la 22) · Structure no. 625202610600001

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Movable - Swing
Steel
Length
503 ft
6 main spans
Daily traffic
16,517
2021 count
Owner
State
State Highway Agency

About this bridge

LA0022 over Tchefuncte R/Madisonvill is a steel movable - swing carrying LA0022 over Tchefuncte R/Madisonvill in St. Tammany Parish, Louisiana. It was built in 1980, so it is 45 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 16,517 vehicles a day, roughly 6% of them trucks, projected to reach 18,168 by 2041. The structure is 503 ft (153.3 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0022
CrossesTchefuncte R/Madisonvill
LocationMadisonville (la 22)
RouteState Highway 22
CountySt. Tammany Parish
StateLouisiana
Coordinates30.40435, -90.15548
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating55 US tons
Inventory rating39 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans6
Design loadHS 20
Structure length503 ft (153.3 m)
Longest span180 ft (54.9 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,517 (2021)
Projected traffic18,168 by 2041
Trucks6%
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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0022 over Tchefuncte R/Madisonvill built?

It was built in 1980, making it 45 years old in 2025.

What condition is LA0022 over Tchefuncte R/Madisonvill 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 August 2023.

How much traffic does LA0022 over Tchefuncte R/Madisonvill carry?

About 16,517 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is LA0022 over Tchefuncte R/Madisonvill?

The structure is 503 ft (153.3 m) long with a longest span of 180 ft (54.9 m) and a deck 38 ft wide.

Who owns LA0022 over Tchefuncte R/Madisonvill?

It is owned by the State Highway Agency.