US Bridges

US0090 over LA 316

Fair

Lafourche Parish, Louisiana · US 90 over LA 316 · Structure no. 022904240800001

Built
1980
45 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
2,240 ft
27 main spans
Daily traffic
14,769
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over LA 316 is a prestressed concrete continuous stringer/multi-beam or girder carrying US0090 over LA 316 in Lafourche Parish, Louisiana. It was built in 1980, so it is 45 years old, older 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 14,769 vehicles a day, roughly 18% of them trucks, projected to reach 16,245 by 2041. The structure is 2,240 ft (682.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090
CrossesLA 316
LocationUS 90 over LA 316
RouteU.S. Route 90
CountyLafourche Parish
StateLouisiana
Coordinates29.68225, -90.75432
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans27 (+13 approach)
Design loadHS 20
Structure length2,240 ft (682.8 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,769 (2021)
Projected traffic16,245 by 2041
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US0090 over LA 316 built?

It was built in 1980, making it 45 years old in 2025.

What condition is US0090 over LA 316 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 June 2024.

How much traffic does US0090 over LA 316 carry?

About 14,769 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US0090 over LA 316?

The structure is 2,240 ft (682.8 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns US0090 over LA 316?

It is owned by the State Highway Agency.