US Bridges

US0071 over Dooley Bayou

Fair

Caddo Parish, Louisiana · .55 MI North of LA 530 · Structure no. 040900110305851

Built
1955
70 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
51 ft
4 main spans
Daily traffic
472
2021 count
Owner
State
State Highway Agency

About this bridge

US0071 over Dooley Bayou is a concrete culvert carrying US0071 over Dooley Bayou in Caddo Parish, Louisiana. It was built in 1955, so it is 70 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 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 472 vehicles a day, roughly 26% of them trucks, projected to reach 519 by 2041. The structure is 51 ft (15.5 m) long and 101 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS0071
CrossesDooley Bayou
Location.55 MI North of LA 530
RouteU.S. Route 71
CountyCaddo Parish
StateLouisiana
Coordinates32.76556, -93.8462
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span10 ft (3 m)
Deck width101 ft (30.8 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic472 (2021)
Projected traffic519 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US0071 over Dooley Bayou built?

It was built in 1955, making it 70 years old in 2025.

What condition is US0071 over Dooley 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 2024.

How much traffic does US0071 over Dooley Bayou carry?

About 472 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is US0071 over Dooley Bayou?

The structure is 51 ft (15.5 m) long with a longest span of 10 ft (3 m) and a deck 101 ft wide.

Who owns US0071 over Dooley Bayou?

It is owned by the State Highway Agency.