US Bridges

I0012 over Ponchatolawa Creek

Fair

St. Tammany Parish, Louisiana · 0.7 M E of US 190 · Structure no. 625204540410862

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
175 ft
7 main spans
Daily traffic
29,236
2021 count
Owner
State
State Highway Agency

About this bridge

I0012 over Ponchatolawa Creek is a concrete slab carrying I0012 over Ponchatolawa Creek 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 29,236 vehicles a day, roughly 26% of them trucks, projected to reach 32,159 by 2041. The structure is 175 ft (53.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0012
CrossesPonchatolawa Creek
Location0.7 M E of US 190
RouteInterstate 12
CountySt. Tammany Parish
StateLouisiana
Coordinates30.42611, -90.0714
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 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 width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,236 (2021)
Projected traffic32,159 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 Ponchatolawa Creek built?

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

What condition is I0012 over Ponchatolawa 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 August 2023.

How much traffic does I0012 over Ponchatolawa Creek carry?

About 29,236 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I0012 over Ponchatolawa Creek?

The structure is 175 ft (53.3 m) long with a longest span of 25 ft (7.6 m) and a deck 43 ft wide.

Who owns I0012 over Ponchatolawa Creek?

It is owned by the State Highway Agency.