US Bridges

US0090 over Drain

Fair

St. Mary Parish, Louisiana · 1.3 MI East of LA 671 · Structure no. 035104240500801

Built
1973
52 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
20 ft
3 main spans
Daily traffic
18,127
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Drain is a concrete culvert carrying US0090 over Drain in St. Mary Parish, Louisiana. It was built in 1973, so it is 52 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 18,127 vehicles a day, roughly 24% of them trucks, projected to reach 19,939 by 2041. The structure is 20 ft (6.1 m) long and 321 ft wide.

CarriesUS0090
CrossesDrain
Location1.3 MI East of LA 671
RouteU.S. Route 90
Coordinates29.88153, -91.66418
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span6 ft (1.8 m)
Deck width321 ft (97.8 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,127 (2021)
Projected traffic19,939 by 2041
Trucks24%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$303,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Drain built?

It was built in 1973, making it 52 years old in 2025.

What condition is US0090 over Drain 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 November 2023.

How much traffic does US0090 over Drain carry?

About 18,127 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is US0090 over Drain?

The structure is 20 ft (6.1 m) long with a longest span of 6 ft (1.8 m) and a deck 321 ft wide.

Who owns US0090 over Drain?

It is owned by the State Highway Agency.