US Bridges

Linwood Ave over Trby to Brush Bayou

Good

Caddo Parish, Louisiana · 0.2 Mi. So. of LA 511 · Structure no. 040932263934581

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
14,042
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

Linwood Ave over Trby to Brush Bayou is a concrete culvert carrying Linwood Ave over Trby to Brush Bayou in Caddo Parish, Louisiana. It was built in 1983, so it is 42 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,042 vehicles a day, projected to reach 15,446 by 1999. The structure is 29 ft (8.8 m) long and 81 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLinwood Ave
CrossesTrby to Brush Bayou
Location0.2 Mi. So. of LA 511
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.43943, -93.76308
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width81 ft (24.7 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,042 (1979)
Projected traffic15,446 by 1999
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$234,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Linwood Ave over Trby to Brush Bayou built?

It was built in 1983, making it 42 years old in 2025.

What condition is Linwood Ave over Trby to Brush Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Linwood Ave over Trby to Brush Bayou carry?

About 14,042 vehicles per day (1979 count).

How long is Linwood Ave over Trby to Brush Bayou?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m) and a deck 81 ft wide.

Who owns Linwood Ave over Trby to Brush Bayou?

It is owned by the City or Municipal Highway Agency.