US Bridges

LA0162 over Black Bayou

PoorPosted for load

Bossier Parish, Louisiana · 00.76 MI East of LA 3 · Structure no. 040800823000761

Built
1967
58 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
193 ft
10 main spans
Daily traffic
4,595
2021 count
Owner
State
State Highway Agency

About this bridge

LA0162 over Black Bayou is a concrete slab carrying LA0162 over Black Bayou in Bossier Parish, Louisiana. It was built in 1967, so it is 58 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 4,595 vehicles a day, roughly 19% of them trucks, projected to reach 5,054 by 2041. The structure is 193 ft (58.8 m) long and 27 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesLA0162
CrossesBlack Bayou
Location00.76 MI East of LA 3
RouteState Highway 162
Coordinates32.69531, -93.7285
Functional classRural Major 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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length193 ft (58.8 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,595 (2021)
Projected traffic5,054 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$868,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0162 over Black Bayou built?

It was built in 1967, making it 58 years old in 2025.

What condition is LA0162 over Black 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 LA0162 over Black Bayou carry?

About 4,595 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0162 over Black Bayou?

The structure is 193 ft (58.8 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0162 over Black Bayou?

It is owned by the State Highway Agency.