US Bridges

I0012 over US 190

Fair

St. Tammany Parish, Louisiana · 2.6 M W of LA 59 · Structure no. 625204540410061

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
688 ft
9 main spans
Daily traffic
79,563
2021 count
Owner
State
State Highway Agency

About this bridge

I0012 over US 190 is a prestressed concrete stringer/multi-beam or girder carrying I0012 over US 190 in St. Tammany Parish, Louisiana. It was built in 1976, so it is 49 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 79,563 vehicles a day, roughly 26% of them trucks, projected to reach 87,519 by 2041. The structure is 688 ft (209.7 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0012
CrossesUS 190
Location2.6 M W of LA 59
RouteInterstate 12
CountySt. Tammany Parish
StateLouisiana
Coordinates30.42909, -90.0852
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length688 ft (209.7 m)
Longest span88 ft (26.8 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79,563 (2021)
Projected traffic87,519 by 2041
Trucks26%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0012 over US 190 built?

It was built in 1976, making it 49 years old in 2025.

What condition is I0012 over US 190 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 August 2023.

How much traffic does I0012 over US 190 carry?

About 79,563 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I0012 over US 190?

The structure is 688 ft (209.7 m) long with a longest span of 88 ft (26.8 m) and a deck 54 ft wide.

Who owns I0012 over US 190?

It is owned by the State Highway Agency.