US Bridges

LA0169 over Boggy Bayou

Fair

Caddo Parish, Louisiana · 6.71 MI S of US 78-80 · Structure no. 040900970106711

Built
1999
26 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
1,540
2021 count
Owner
State
State Highway Agency

About this bridge

LA0169 over Boggy Bayou is a concrete slab carrying LA0169 over Boggy Bayou in Caddo Parish, Louisiana. It was built in 1999, so it is 26 years old, younger 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 1,540 vehicles a day, roughly 19% of them trucks, projected to reach 1,694 by 2041. The structure is 180 ft (54.9 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesLA0169
CrossesBoggy Bayou
Location6.71 MI S of US 78-80
RouteState Highway 169
CountyCaddo Parish
StateLouisiana
Coordinates32.35676, -93.9461
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.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,540 (2021)
Projected traffic1,694 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0169 over Boggy Bayou built?

It was built in 1999, making it 26 years old in 2025.

What condition is LA0169 over Boggy 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 January 2025.

How much traffic does LA0169 over Boggy Bayou carry?

About 1,540 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0169 over Boggy Bayou?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0169 over Boggy Bayou?

It is owned by the State Highway Agency.