US Bridges

LA1040 over Yellow Water River

PoorPosted for load

Tangipahoa Parish, Louisiana · 4.7 MI E of LA 43 · Structure no. 625308531003351

Built
1958
67 years old
Condition
Poor
inspected March 2023
Type
Slab
Concrete
Length
135 ft
7 main spans
Daily traffic
7,190
2021 count
Owner
State
State Highway Agency

About this bridge

LA1040 over Yellow Water River is a concrete slab carrying LA1040 over Yellow Water River in Tangipahoa Parish, Louisiana. It was built in 1958, so it is 67 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 7,190 vehicles a day, roughly 9% of them trucks, projected to reach 7,909 by 2041. The structure is 135 ft (41.1 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA1040
CrossesYellow Water River
Location4.7 MI E of LA 43
RouteState Highway 1040
Coordinates30.4898, -90.5019
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating41 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadH 15
Structure length135 ft (41.1 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,190 (2021)
Projected traffic7,909 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$643,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1040 over Yellow Water River built?

It was built in 1958, making it 67 years old in 2025.

What condition is LA1040 over Yellow Water River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does LA1040 over Yellow Water River carry?

About 7,190 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA1040 over Yellow Water River?

The structure is 135 ft (41.1 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns LA1040 over Yellow Water River?

It is owned by the State Highway Agency.