US Bridges

US0090 over Commercial Canal

Fair

Iberia Parish, Louisiana · 1.37 MI E of LA 329 · Structure no. 032304240409823

Built
1999
26 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
1,301
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Commercial Canal is a concrete slab carrying US0090 over Commercial Canal in Iberia Parish, Louisiana. It was built in 1999, so it is 26 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,301 vehicles a day, roughly 9% of them trucks, projected to reach 1,431 by 2041. The structure is 100 ft (30.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090
CrossesCommercial Canal
Location1.37 MI E of LA 329
RouteU.S. Route 90
CountyIberia Parish
StateLouisiana
Coordinates29.96481, -91.83683
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,301 (2021)
Projected traffic1,431 by 2041
Trucks9%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$498,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Commercial Canal built?

It was built in 1999, making it 26 years old in 2025.

What condition is US0090 over Commercial Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does US0090 over Commercial Canal carry?

About 1,301 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is US0090 over Commercial Canal?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns US0090 over Commercial Canal?

It is owned by the State Highway Agency.