US Bridges

S Ave H over Blanc Bayou

Good

Acadia Parish, Louisiana · 0.82 Mi. South of US 90 · Structure no. 030100000200560

Built
2014
11 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
115 ft
5 main spans
Daily traffic
480
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Ave H over Blanc Bayou is a concrete slab carrying S Ave H over Blanc Bayou in Acadia Parish, Louisiana. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 480 vehicles a day, projected to reach 528 by 2041. The structure is 115 ft (35.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Ave H
CrossesBlanc Bayou
Location0.82 Mi. South of US 90
RouteCounty Highway 0
CountyAcadia Parish
StateLouisiana
Coordinates30.20007, -92.36801
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHL 93
Structure length115 ft (35.1 m)
Longest span25 ft (7.6 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (2021)
Projected traffic528 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Ave H over Blanc Bayou built?

It was built in 2014, making it 11 years old in 2025.

What condition is S Ave H over Blanc 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 2024.

How much traffic does S Ave H over Blanc Bayou carry?

About 480 vehicles per day (2021 count).

How long is S Ave H over Blanc Bayou?

The structure is 115 ft (35.1 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.

Who owns S Ave H over Blanc Bayou?

It is owned by the City or Municipal Highway Agency.