US Bridges

US0090 over Drain Ditch

Good

St. Charles Parish, Louisiana · 1 Mile West of Davis Pond · Structure no. 024500000020397

Built
1999
26 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
46 ft
1 main span
Daily traffic
49,920
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Drain Ditch is a concrete culvert carrying US0090 over Drain Ditch in St. Charles Parish, Louisiana. It was built in 1999, so it is 26 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49,920 vehicles a day, roughly 10% of them trucks, projected to reach 54,912 by 2041. The structure is 46 ft (14 m) long and 197 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesUS0090
CrossesDrain Ditch
Location1 Mile West of Davis Pond
RouteU.S. Route 90
Coordinates29.91704, -90.3196
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to 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 spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width197 ft (60 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,920 (2021)
Projected traffic54,912 by 2041
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
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 Drain Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is US0090 over Drain Ditch 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 March 2023.

How much traffic does US0090 over Drain Ditch carry?

About 49,920 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0090 over Drain Ditch?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m) and a deck 197 ft wide.

Who owns US0090 over Drain Ditch?

It is owned by the State Highway Agency.