US Bridges

LA0160 over Cypress Bayou

PoorPosted for load

Bossier Parish, Louisiana · .73 MI East of LA 3 · Structure no. 040800850303171

Built
1969
56 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
134 ft
7 main spans
Daily traffic
622
2021 count
Owner
State
State Highway Agency

About this bridge

LA0160 over Cypress Bayou is a concrete slab carrying LA0160 over Cypress Bayou in Bossier Parish, Louisiana. It was built in 1969, so it is 56 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 3 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 622 vehicles a day, roughly 25% of them trucks, projected to reach 684 by 2041. The structure is 134 ft (40.8 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLA0160
CrossesCypress Bayou
Location.73 MI East of LA 3
RouteState Highway 160
Coordinates32.78675, -93.7084
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.4 US tons
Inventory rating14.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic622 (2021)
Projected traffic684 by 2041
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$639,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0160 over Cypress Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is LA0160 over Cypress Bayou 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 November 2024.

How much traffic does LA0160 over Cypress Bayou carry?

About 622 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is LA0160 over Cypress Bayou?

The structure is 134 ft (40.8 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0160 over Cypress Bayou?

It is owned by the State Highway Agency.