US Bridges

US0090 over LA 85

Good

Iberia Parish, Louisiana · 3.40 MI W of LA 688 · Structure no. 032300000030397

Built
2011
14 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
1,541 ft
19 main spans
Daily traffic
10,090
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over LA 85 is a concrete stringer/multi-beam or girder carrying US0090 over LA 85 in Iberia 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,090 vehicles a day, roughly 24% of them trucks, projected to reach 11,099 by 2041. The structure is 1,541 ft (469.7 m) long and 42 ft wide.

CarriesUS0090
CrossesLA 85
Location3.40 MI W of LA 688
RouteState Highway 90
Coordinates29.91835, -91.72646
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating38.3 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans19
Design loadHS 20
Structure length1,541 ft (469.7 m)
Longest span114 ft (34.7 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,090 (2021)
Projected traffic11,099 by 2041
Trucks24%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over LA 85 built?

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

What condition is US0090 over LA 85 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 June 2023.

How much traffic does US0090 over LA 85 carry?

About 10,090 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is US0090 over LA 85?

The structure is 1,541 ft (469.7 m) long with a longest span of 114 ft (34.7 m) and a deck 42 ft wide.

Who owns US0090 over LA 85?

It is owned by the State Highway Agency.