US Bridges

I0310 over Drain Canal

Fair

St. Charles Parish, Louisiana · 0.8 Miles South of Hales · Structure no. 024500000020394

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
40,204
2021 count
Owner
State
State Highway Agency

About this bridge

I0310 over Drain Canal is a concrete culvert carrying I0310 over Drain Canal in St. Charles Parish, Louisiana. It was built in 1984, so it is 41 years old, younger 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 40,204 vehicles a day, roughly 25% of them trucks, projected to reach 44,224 by 2041. The structure is 30 ft (9.1 m) long and 210 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesI0310
CrossesDrain Canal
Location0.8 Miles South of Hales
RouteInterstate 310
CountySt. Charles Parish
StateLouisiana
Coordinates29.92447, -90.3922
Functional classUrban Principal Arterial - Interstate

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 inspectionMarch 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 spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width210 ft (64 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,204 (2021)
Projected traffic44,224 by 2041
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$198,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I0310 over Drain Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is I0310 over Drain 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 March 2023.

How much traffic does I0310 over Drain Canal carry?

About 40,204 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is I0310 over Drain Canal?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 210 ft wide.

Who owns I0310 over Drain Canal?

It is owned by the State Highway Agency.