US Bridges

David Duboin RD over Commercial Canal

Good

Iberia Parish, Louisiana · 2.1 Mi. E. of LA 329 · Structure no. 032300000200736

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
1,184
2021 count
Owner
County
County Highway Agency

About this bridge

David Duboin RD over Commercial Canal is a concrete slab carrying David Duboin RD over Commercial Canal in Iberia Parish, Louisiana. It was built in 2013, so it is 12 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 1,184 vehicles a day, projected to reach 1,302 by 2041. The structure is 80 ft (24.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDavid Duboin RD
CrossesCommercial Canal
Location2.1 Mi. E. of LA 329
RouteCounty Highway 0
CountyIberia Parish
StateLouisiana
Coordinates29.95626, -91.83682
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.
Substructure7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating60.4 US tons
Inventory rating46.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,184 (2021)
Projected traffic1,302 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 David Duboin RD over Commercial Canal built?

It was built in 2013, making it 12 years old in 2025.

What condition is David Duboin RD over Commercial 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 David Duboin RD over Commercial Canal carry?

About 1,184 vehicles per day (2021 count).

How long is David Duboin RD over Commercial Canal?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns David Duboin RD over Commercial Canal?

It is owned by the County Highway Agency.