US Bridges

LA0424 over Drain

Fair

Washington Parish, Louisiana · 1.0 M N of LA 438 · Structure no. 625908591401211

Built
1969
56 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
1,873
2021 count
Owner
State
State Highway Agency

About this bridge

LA0424 over Drain is a wood or timber stringer/multi-beam or girder carrying LA0424 over Drain in Washington Parish, Louisiana. It was built in 1969, so it is 56 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 1,873 vehicles a day, roughly 13% of them trucks, projected to reach 2,060 by 2041. The structure is 39 ft (11.9 m) long and 28 ft wide.

CarriesLA0424
CrossesDrain
Location1.0 M N of LA 438
RouteState Highway 424
Coordinates30.98606, -90.029
Functional classRural Local

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 inspectionMay 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating22 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length39 ft (11.9 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,873 (2021)
Projected traffic2,060 by 2041
Trucks13%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0424 over Drain built?

It was built in 1969, making it 56 years old in 2025.

What condition is LA0424 over Drain 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 May 2024.

How much traffic does LA0424 over Drain carry?

About 1,873 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0424 over Drain?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns LA0424 over Drain?

It is owned by the State Highway Agency.