US Bridges

US0084 over Bourbeaux Bayou

Poor

Natchitoches Parish, Louisiana · 1.35 Mi. East of US 71 · Structure no. 083500220101351

Built
1987
38 years old
Condition
Poor
inspected January 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
4,081
2021 count
Owner
State
State Highway Agency

About this bridge

US0084 over Bourbeaux Bayou is a concrete culvert carrying US0084 over Bourbeaux Bayou in Natchitoches Parish, Louisiana. It was built in 1987, so it is 38 years old, younger 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 4 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 4,081 vehicles a day, roughly 15% of them trucks, projected to reach 4,489 by 2041. The structure is 33 ft (10.1 m) long and 100 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS0084
CrossesBourbeaux Bayou
Location1.35 Mi. East of US 71
RouteU.S. Route 84
CountyNatchitoches Parish
StateLouisiana
Coordinates31.82049, -93.0066
Functional classRural Principal Arterial - Other

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width100 ft (30.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,081 (2021)
Projected traffic4,489 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 US0084 over Bourbeaux Bayou built?

It was built in 1987, making it 38 years old in 2025.

What condition is US0084 over Bourbeaux 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 January 2024.

How much traffic does US0084 over Bourbeaux Bayou carry?

About 4,081 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0084 over Bourbeaux Bayou?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 100 ft wide.

Who owns US0084 over Bourbeaux Bayou?

It is owned by the State Highway Agency.