US Bridges

SR 24 over Tangipahoa River

Good

Pike County, Mississippi · 2.4 MI W I 55 · Structure no. 310002405707380

Built
1993
32 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
362 ft
1 main span
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

SR 24 over Tangipahoa River is a prestressed concrete stringer/multi-beam or girder carrying SR 24 over Tangipahoa River in Pike County, Mississippi. It was built in 1993, so it is 32 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,700 vehicles a day, roughly 19% of them trucks, projected to reach 5,700 by 2043. The structure is 362 ft (110.3 m) long and 47 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesSR 24
CrossesTangipahoa River
Location2.4 MI W I 55
RouteState Highway 24
Coordinates31.2112, -90.52283
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating26.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadHS 20
Structure length362 ft (110.3 m)
Longest span80 ft (24.4 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2023)
Projected traffic5,700 by 2043
Trucks19%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 SR 24 over Tangipahoa River built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR 24 over Tangipahoa River 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 November 2024.

How much traffic does SR 24 over Tangipahoa River carry?

About 5,700 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SR 24 over Tangipahoa River?

The structure is 362 ft (110.3 m) long with a longest span of 80 ft (24.4 m) and a deck 47 ft wide.

Who owns SR 24 over Tangipahoa River?

It is owned by the State Highway Agency.