US Bridges

US0071 over Cross Bayou

Poor

Caddo Parish, Louisiana · .1 MI North of LA 173 · Structure no. 040900110100352

Built
1940
85 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
438 ft
9 main spans
Daily traffic
5,484
2021 count
Owner
State
State Highway Agency

About this bridge

US0071 over Cross Bayou is a steel stringer/multi-beam or girder carrying US0071 over Cross Bayou in Caddo Parish, Louisiana. It was built in 1940, so it is 85 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,484 vehicles a day, roughly 8% of them trucks, projected to reach 6,032 by 2041. The structure is 438 ft (133.5 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0071
CrossesCross Bayou
Location.1 MI North of LA 173
RouteU.S. Route 71
Coordinates32.5192, -93.7527
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length438 ft (133.5 m)
Longest span71 ft (21.6 m)
Deck width57 ft (17.3 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,484 (2021)
Projected traffic6,032 by 2041
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US0071 over Cross Bayou built?

It was built in 1940, making it 85 years old in 2025.

What condition is US0071 over Cross Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does US0071 over Cross Bayou carry?

About 5,484 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US0071 over Cross Bayou?

The structure is 438 ft (133.5 m) long with a longest span of 71 ft (21.6 m) and a deck 57 ft wide.

Who owns US0071 over Cross Bayou?

It is owned by the State Highway Agency.