US Bridges

US 15 NB over Pocotaligo River

Good

Sumter County, South Carolina · 2 MI S of Sumter · Structure no. 000000000005629

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
228 ft
7 main spans
Daily traffic
10,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 15 NB over Pocotaligo River is a concrete slab carrying US 15 NB over Pocotaligo River in Sumter County, South Carolina. It was built in 1968, so it is 57 years old, older than the South Carolina average of 48 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 10,600 vehicles a day, roughly 7% of them trucks, projected to reach 7,314 by 2043. The structure is 228 ft (69.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 15 NB
CrossesPocotaligo River
Location2 MI S of Sumter
RouteU.S. Route 15
Coordinates33.87567, -80.35211
Functional classUrban Other Principal 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length228 ft (69.5 m)
Longest span36 ft (11 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2023)
Projected traffic7,314 by 2043
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 US 15 NB over Pocotaligo River built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 15 NB over Pocotaligo 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 June 2024.

How much traffic does US 15 NB over Pocotaligo River carry?

About 10,600 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 15 NB over Pocotaligo River?

The structure is 228 ft (69.5 m) long with a longest span of 36 ft (11 m) and a deck 43 ft wide.

Who owns US 15 NB over Pocotaligo River?

It is owned by the State Highway Agency.