US Bridges

Linwood Ave. over Boggy Bayou Relief

Fair

Caddo Parish, Louisiana · 3.1 MI S of LA 526 · Structure no. 040900000040458

Built
2018
7 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
260 ft
13 main spans
Daily traffic
260
2019 count
Owner
County
County Highway Agency

About this bridge

Linwood Ave. over Boggy Bayou Relief is a concrete slab carrying Linwood Ave. over Boggy Bayou Relief in Caddo Parish, Louisiana. It was built in 2018, so it is 7 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 260 vehicles a day, roughly 10% of them trucks, projected to reach 286 by 2039. The structure is 260 ft (79.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLinwood Ave.
CrossesBoggy Bayou Relief
Location3.1 MI S of LA 526
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.35332, -93.76608
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans13
Design loadHL 93
Structure length260 ft (79.2 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2019)
Projected traffic286 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Linwood Ave. over Boggy Bayou Relief built?

It was built in 2018, making it 7 years old in 2025.

What condition is Linwood Ave. over Boggy Bayou Relief 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 March 2023.

How much traffic does Linwood Ave. over Boggy Bayou Relief carry?

About 260 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Linwood Ave. over Boggy Bayou Relief?

The structure is 260 ft (79.2 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Linwood Ave. over Boggy Bayou Relief?

It is owned by the County Highway Agency.