US Bridges

Wardline RD over Natalbany River Relief

Good

Tangipahoa Parish, Louisiana · 4MI N/W or Rt 190 Exit · Structure no. 625330312903301

Built
1998
27 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
1,259
2020 count
Owner
County
County Highway Agency

About this bridge

Wardline RD over Natalbany River Relief is a concrete slab carrying Wardline RD over Natalbany River Relief in Tangipahoa Parish, Louisiana. It was built in 1998, so it is 27 years old, younger 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 1,259 vehicles a day, projected to reach 1,384 by 2040. The structure is 114 ft (34.7 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWardline RD
CrossesNatalbany River Relief
Location4MI N/W or Rt 190 Exit
RouteCounty Highway 0
Coordinates30.51914, -90.55114
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,259 (2020)
Projected traffic1,384 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wardline RD over Natalbany River Relief built?

It was built in 1998, making it 27 years old in 2025.

What condition is Wardline RD over Natalbany River Relief 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 June 2023.

How much traffic does Wardline RD over Natalbany River Relief carry?

About 1,259 vehicles per day (2020 count).

How long is Wardline RD over Natalbany River Relief?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Wardline RD over Natalbany River Relief?

It is owned by the County Highway Agency.