US Bridges

Harrison Ave over Bayou ST John

Good

Orleans Parish, Louisiana · 0.1 Mi. E. of Wisner Blvd · Structure no. 023600000102125

Built
2011
14 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
—
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harrison Ave over Bayou ST John is a concrete slab carrying Harrison Ave over Bayou ST John in Orleans Parish, Louisiana. It was built in 2011, so it is 14 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.

No traffic count is recorded. The structure is 140 ft (42.7 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHarrison Ave
CrossesBayou ST John
Location0.1 Mi. E. of Wisner Blvd
RouteCounty Highway 0
CountyOrleans Parish
StateLouisiana
Coordinates29.99931, -90.08548
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrison Ave over Bayou ST John built?

It was built in 2011, making it 14 years old in 2025.

What condition is Harrison Ave over Bayou ST John 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 May 2023.

How much traffic does Harrison Ave over Bayou ST John carry?

No traffic count is recorded for this structure.

How long is Harrison Ave over Bayou ST John?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Harrison Ave over Bayou ST John?

It is owned by the City or Municipal Highway Agency.