US Bridges

Back RD over Delahossaye Canal

Good

Iberia Parish, Louisiana · 0.02 MI W of LA 668 · Structure no. 032300000030525

Built
2018
7 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
85
2020 count
Owner
County
County Highway Agency

About this bridge

Back RD over Delahossaye Canal is a concrete slab carrying Back RD over Delahossaye Canal in Iberia Parish, Louisiana. It was built in 2018, so it is 7 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 85 vehicles a day, projected to reach 93 by 2040. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBack RD
CrossesDelahossaye Canal
Location0.02 MI W of LA 668
RouteCounty Highway 0
Coordinates29.88347, -91.69055
Functional classRural 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 inspectionOctober 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating63.6 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2020)
Projected traffic93 by 2040
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Back RD over Delahossaye Canal built?

It was built in 2018, making it 7 years old in 2025.

What condition is Back RD over Delahossaye Canal 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 October 2024.

How much traffic does Back RD over Delahossaye Canal carry?

About 85 vehicles per day (2020 count).

How long is Back RD over Delahossaye Canal?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Back RD over Delahossaye Canal?

It is owned by the County Highway Agency.