US Bridges

LA1057 over Drain

Good

Tangipahoa Parish, Louisiana · La. 1057 · Structure no. 625308530202861

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
38 ft
5 main spans
Daily traffic
1,695
2021 count
Owner
State
State Highway Agency

About this bridge

LA1057 over Drain is a concrete culvert carrying LA1057 over Drain in Tangipahoa Parish, Louisiana. It was built in 1965, so it is 60 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,695 vehicles a day, roughly 12% of them trucks, projected to reach 1,864 by 2041. The structure is 38 ft (11.6 m) long and 64 ft wide.

CarriesLA1057
CrossesDrain
LocationLa. 1057
RouteState Highway 1057
Coordinates30.88434, -90.4411
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width64 ft (19.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,695 (2021)
Projected traffic1,864 by 2041
Trucks12%
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 LA1057 over Drain built?

It was built in 1965, making it 60 years old in 2025.

What condition is LA1057 over Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does LA1057 over Drain carry?

About 1,695 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA1057 over Drain?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m) and a deck 64 ft wide.

Who owns LA1057 over Drain?

It is owned by the State Highway Agency.