US Bridges

US0090 over Barrow Canal

Fair

St. Mary Parish, Louisiana · 0.7 MI East of LA 182 · Structure no. 035104240522981

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
17,736
2022 count
Owner
State
State Highway Agency

About this bridge

US0090 over Barrow Canal is a concrete culvert carrying US0090 over Barrow Canal in St. Mary Parish, Louisiana. It was built in 1964, so it is 61 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 17,736 vehicles a day, roughly 14% of them trucks, projected to reach 19,509 by 2042. The structure is 25 ft (7.6 m) long and 440 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesUS0090
CrossesBarrow Canal
Location0.7 MI East of LA 182
RouteU.S. Route 90
CountySt. Mary Parish
StateLouisiana
Coordinates29.69755, -91.369
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width440 ft (134.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,736 (2022)
Projected traffic19,509 by 2042
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Barrow Canal built?

It was built in 1964, making it 61 years old in 2025.

What condition is US0090 over Barrow 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 May 2023.

How much traffic does US0090 over Barrow Canal carry?

About 17,736 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US0090 over Barrow Canal?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 440 ft wide.

Who owns US0090 over Barrow Canal?

It is owned by the State Highway Agency.