US Bridges

LA0040 over Davis Branch

Good

Tangipahoa Parish, Louisiana · 0.7 M SE of LA 1054 · Structure no. 625304150302781

Built
1981
44 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
58 ft
3 main spans
Daily traffic
4,748
2021 count
Owner
State
State Highway Agency

About this bridge

LA0040 over Davis Branch is a concrete slab carrying LA0040 over Davis Branch in Tangipahoa Parish, Louisiana. It was built in 1981, so it is 44 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 4,748 vehicles a day, roughly 12% of them trucks, projected to reach 5,222 by 2041. The structure is 58 ft (17.7 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesLA0040
CrossesDavis Branch
Location0.7 M SE of LA 1054
RouteState Highway 40
CountyTangipahoa Parish
StateLouisiana
Coordinates30.63744, -90.4623
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
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 rating69 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,748 (2021)
Projected traffic5,222 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 LA0040 over Davis Branch built?

It was built in 1981, making it 44 years old in 2025.

What condition is LA0040 over Davis Branch 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 April 2023.

How much traffic does LA0040 over Davis Branch carry?

About 4,748 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0040 over Davis Branch?

The structure is 58 ft (17.7 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0040 over Davis Branch?

It is owned by the State Highway Agency.