US Bridges

LA7822 over Macks Bayou

Fair

Bossier Parish, Louisiana · .98 MI East of LA 72 · Structure no. 040808080600981

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
115 ft
6 main spans
Daily traffic
4,896
2021 count
Owner
State
State Highway Agency

About this bridge

LA7822 over Macks Bayou is a concrete slab carrying LA7822 over Macks Bayou in Bossier Parish, Louisiana. It was built in 1970, so it is 55 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 5 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 4,896 vehicles a day, roughly 10% of them trucks, projected to reach 5,385 by 2041. The structure is 115 ft (35.1 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLA7822
CrossesMacks Bayou
Location.98 MI East of LA 72
RouteState Highway 7822
CountyBossier Parish
StateLouisiana
Coordinates32.52649, -93.6764
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating33.6 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,896 (2021)
Projected traffic5,385 by 2041
Trucks10%
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$561,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA7822 over Macks Bayou built?

It was built in 1970, making it 55 years old in 2025.

What condition is LA7822 over Macks 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 November 2023.

How much traffic does LA7822 over Macks Bayou carry?

About 4,896 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA7822 over Macks Bayou?

The structure is 115 ft (35.1 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns LA7822 over Macks Bayou?

It is owned by the State Highway Agency.