US Bridges

LA0575 over Cypress Bayou

Fair

Tensas Parish, Louisiana · .1 MI East of LA 888 · Structure no. 585403500300101

Built
1962
63 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
26
2021 count
Owner
State
State Highway Agency

About this bridge

LA0575 over Cypress Bayou is a concrete slab carrying LA0575 over Cypress Bayou in Tensas Parish, Louisiana. It was built in 1962, so it is 63 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 26 vehicles a day, roughly 11% of them trucks, projected to reach 28 by 2041. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesLA0575
CrossesCypress Bayou
Location.1 MI East of LA 888
RouteState Highway 575
CountyTensas Parish
StateLouisiana
Coordinates32.18167, -91.2944
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2021)
Projected traffic28 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0575 over Cypress Bayou built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA0575 over Cypress Bayou 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 August 2023.

How much traffic does LA0575 over Cypress Bayou carry?

About 26 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0575 over Cypress Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0575 over Cypress Bayou?

It is owned by the State Highway Agency.