US Bridges

I0012 over Grays Creek

Fair

Livingston Parish, Louisiana · I0012 · Structure no. 623204540203302

Built
1970
55 years old, rebuilt 2012
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
37,161
2021 count
Owner
State
State Highway Agency

About this bridge

I0012 over Grays Creek is a concrete slab carrying I0012 over Grays Creek in Livingston Parish, Louisiana. It was built in 1970 and reconstructed in 2012, so it is 55 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 37,161 vehicles a day, roughly 26% of them trucks, projected to reach 40,877 by 2041. The structure is 150 ft (45.7 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0012
CrossesGrays Creek
LocationI0012
RouteInterstate 12
Coordinates30.46074, -90.9339
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width65 ft (19.7 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,161 (2021)
Projected traffic40,877 by 2041
Trucks26%
Lanes on structure3
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 I0012 over Grays Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2012.

What condition is I0012 over Grays Creek 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 February 2024.

How much traffic does I0012 over Grays Creek carry?

About 37,161 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I0012 over Grays Creek?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 65 ft wide.

Who owns I0012 over Grays Creek?

It is owned by the State Highway Agency.