US Bridges

US0090 over LA00668

Fair

Iberia Parish, Louisiana · US 90 over LA 668 · Structure no. 032304240420272

Built
2003
22 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,890 ft
27 main spans
Daily traffic
10,865
2017 count
Owner
State
State Highway Agency

About this bridge

US0090 over LA00668 is a prestressed concrete stringer/multi-beam or girder carrying US0090 over LA00668 in Iberia Parish, Louisiana. It was built in 2003, so it is 22 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 10,865 vehicles a day, roughly 24% of them trucks, projected to reach 11,951 by 2037. The structure is 1,890 ft (576.1 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesUS0090
CrossesLA00668
LocationUS 90 over LA 668
RouteU.S. Route 90
CountyIberia Parish
StateLouisiana
Coordinates29.88989, -91.68035
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans27
Design loadHS 20
Structure length1,890 ft (576.1 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,865 (2017)
Projected traffic11,951 by 2037
Trucks24%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$7.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0090 over LA00668 built?

It was built in 2003, making it 22 years old in 2025.

What condition is US0090 over LA00668 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 LA00668 carry?

About 10,865 vehicles per day (2017 count), of which roughly 24% are trucks.

How long is US0090 over LA00668?

The structure is 1,890 ft (576.1 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns US0090 over LA00668?

It is owned by the State Highway Agency.