US Bridges

SR 570 over Little Tangipahoa River

Good

Pike County, Mississippi · 0.4 MI W I 55 · Structure no. 310057005701620

Built
1982
43 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
3 main spans
Daily traffic
3,300
2023 count
Owner
State
State Highway Agency

About this bridge

SR 570 over Little Tangipahoa River is a prestressed concrete stringer/multi-beam or girder carrying SR 570 over Little Tangipahoa River in Pike County, Mississippi. It was built in 1982, so it is 43 years old, older 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 3,300 vehicles a day, roughly 10% of them trucks, projected to reach 3,300 by 2043. The structure is 122 ft (37.2 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 570
CrossesLittle Tangipahoa River
Location0.4 MI W I 55
RouteState Highway 570
Coordinates31.25874, -90.48557
Functional classUrban Collector

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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
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 rating60.7 US tons
Inventory rating36.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic3,300 by 2043
Trucks10%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 570 over Little Tangipahoa River built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR 570 over Little 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 December 2024.

How much traffic does SR 570 over Little Tangipahoa River carry?

About 3,300 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 570 over Little Tangipahoa River?

The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns SR 570 over Little Tangipahoa River?

It is owned by the State Highway Agency.