US Bridges

US0190 over Natalbany River

Fair

Tangipahoa Parish, Louisiana · 2.55 Mi. West of I-55 · Structure no. 625300130801271

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
282 ft
7 main spans
Daily traffic
8,928
2021 count
Owner
State
State Highway Agency

About this bridge

US0190 over Natalbany River is a concrete tee beam carrying US0190 over Natalbany River in Tangipahoa Parish, Louisiana. It was built in 1950, so it is 75 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 8,928 vehicles a day, roughly 8% of them trucks, projected to reach 9,820 by 2041. The structure is 282 ft (86 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS0190
CrossesNatalbany River
Location2.55 Mi. West of I-55
RouteU.S. Route 190
CountyTangipahoa Parish
StateLouisiana
Coordinates30.50451, -90.5461
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length282 ft (86 m)
Longest span40 ft (12.2 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,928 (2021)
Projected traffic9,820 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 US0190 over Natalbany River built?

It was built in 1950, making it 75 years old in 2025.

What condition is US0190 over Natalbany River 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 March 2023.

How much traffic does US0190 over Natalbany River carry?

About 8,928 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is US0190 over Natalbany River?

The structure is 282 ft (86 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.

Who owns US0190 over Natalbany River?

It is owned by the State Highway Agency.