US Bridges

I0012 over Yellow Water River Rel.

Good

Tangipahoa Parish, Louisiana · I0012 · Structure no. 625304540303111

Built
1970
55 years old, rebuilt 1999
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
175 ft
7 main spans
Daily traffic
58,377
2021 count
Owner
State
State Highway Agency

About this bridge

I0012 over Yellow Water River Rel. is a concrete slab carrying I0012 over Yellow Water River Rel. in Tangipahoa Parish, Louisiana. It was built in 1970 and reconstructed in 1999, 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 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 58,377 vehicles a day, roughly 26% of them trucks, projected to reach 64,214 by 2041. The structure is 175 ft (53.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0012
CrossesYellow Water River Rel.
LocationI0012
RouteInterstate 12
Coordinates30.47926, -90.5067
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span25 ft (7.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,377 (2021)
Projected traffic64,214 by 2041
Trucks26%
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 I0012 over Yellow Water River Rel. built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1999.

What condition is I0012 over Yellow Water River Rel. 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 February 2023.

How much traffic does I0012 over Yellow Water River Rel. carry?

About 58,377 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I0012 over Yellow Water River Rel.?

The structure is 175 ft (53.3 m) long with a longest span of 25 ft (7.6 m) and a deck 42 ft wide.

Who owns I0012 over Yellow Water River Rel.?

It is owned by the State Highway Agency.