US Bridges

US 15 SB over Pocotaligo River

PoorPosted for load

Sumter County, South Carolina · 2 MI S of Sumter · Structure no. 000000000000703

Built
1935
90 years old, rebuilt 1962
Condition
Poor
inspected June 2024
Type
Tee Beam
Concrete
Length
168 ft
5 main spans
Daily traffic
10,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 15 SB over Pocotaligo River is a concrete tee beam carrying US 15 SB over Pocotaligo River in Sumter County, South Carolina. It was built in 1935 and reconstructed in 1962, so it is 90 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10,600 vehicles a day, roughly 7% of them trucks, projected to reach 7,314 by 2043. The structure is 168 ft (51.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 15 SB
CrossesPocotaligo River
Location2 MI S of Sumter
RouteU.S. Route 15
Coordinates33.87572, -80.35237
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.5 US tons
Inventory rating7.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length168 ft (51.3 m)
Longest span36 ft (11.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$325,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 15 SB over Pocotaligo River built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1962.

What condition is US 15 SB over Pocotaligo River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

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

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

How long is US 15 SB over Pocotaligo River?

The structure is 168 ft (51.3 m) long with a longest span of 36 ft (11.1 m) and a deck 47 ft wide.

Who owns US 15 SB over Pocotaligo River?

It is owned by the State Highway Agency.