US Bridges

I0010 over Trinity Drainage Canal

Fair

Iberville Parish, Louisiana · I0010 · Structure no. 612404500710252

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
140 ft
5 main spans
Daily traffic
298
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over Trinity Drainage Canal is a concrete slab carrying I0010 over Trinity Drainage Canal in Iberville Parish, Louisiana. It was built in 1971, so it is 54 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 298 vehicles a day, roughly 28% of them trucks, projected to reach 327 by 2041. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0010
CrossesTrinity Drainage Canal
LocationI0010
RouteInterstate 10
Coordinates30.40852, -91.47884
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span28 ft (8.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic298 (2021)
Projected traffic327 by 2041
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 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 I0010 over Trinity Drainage Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is I0010 over Trinity Drainage 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 October 2023.

How much traffic does I0010 over Trinity Drainage Canal carry?

About 298 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I0010 over Trinity Drainage Canal?

The structure is 140 ft (42.7 m) long with a longest span of 28 ft (8.5 m) and a deck 43 ft wide.

Who owns I0010 over Trinity Drainage Canal?

It is owned by the State Highway Agency.