LA1045 over Coons Branch

Fair

Tangipahoa Parish, Louisiana · LA 1045 · Structure no. 625308530700951

Built: 1957; 68 years old
Condition: Fair; inspected April 2023
Type: Slab; Concrete
Length: 80 ft; 4 main spans
Daily traffic: 1,509; 2021 count
Owner: State; State Highway Agency

About this bridge

LA1045 over Coons Branch is a concrete slab carrying LA1045 over Coons Branch in Tangipahoa Parish, Louisiana. It was built in 1957, so it is 68 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 1,509 vehicles a day, roughly 12% of them trucks, projected to reach 1,659 by 2041. The structure is 80 ft (24.4 m) long and 29 ft wide.

Location

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CarriesLA1045

CrossesCoons Branch

LocationLA 1045

RouteState Highway 1045

CountyTangipahoa Parish

StateLouisiana

Coordinates30.72771, -90.5507

Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionApril 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to 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 rating43 US tons

Inventory rating26 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans4

Design loadH 15

Structure length80 ft (24.4 m)

Longest span20 ft (6.1 m)

Deck width29 ft (8.9 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,509 (2021)

Projected traffic1,659 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 LA1045 over Coons Branch built?

It was built in 1957, making it 68 years old in 2025.

What condition is LA1045 over Coons Branch 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 April 2023.

How much traffic does LA1045 over Coons Branch carry?

About 1,509 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA1045 over Coons Branch?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns LA1045 over Coons Branch?

It is owned by the State Highway Agency.