US Bridges

Braud RD over Black Bayou

Good

Ascension Parish, Louisiana · 1.6 MI N US 61 LA 621 JCT · Structure no. 610330175905631

Built
2001
24 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
200
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Braud RD over Black Bayou is a concrete slab carrying Braud RD over Black Bayou in Ascension Parish, Louisiana. It was built in 2001, so it is 24 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 200 vehicles a day, projected to reach 220 by 2039. The structure is 76 ft (23.2 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBraud RD
CrossesBlack Bayou
Location1.6 MI N US 61 LA 621 JCT
RouteCounty Highway 0
Coordinates30.29312, -90.93859
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2019)
Projected traffic220 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Braud RD over Black Bayou built?

It was built in 2001, making it 24 years old in 2025.

What condition is Braud RD over Black 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 Braud RD over Black Bayou carry?

About 200 vehicles per day (2019 count).

How long is Braud RD over Black Bayou?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Braud RD over Black Bayou?

It is owned by the Town or Township Highway Agency.