US Bridges

US 15 over Whites Mill Pond

Fair

Sumter County, South Carolina · 3 MI N of Sumter · Structure no. 000000000000702

Built
1935
90 years old, rebuilt 1965
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
7,700
2023 count
Owner
State
State Highway Agency

About this bridge

US 15 over Whites Mill Pond is a concrete tee beam carrying US 15 over Whites Mill Pond in Sumter County, South Carolina. It was built in 1935 and reconstructed in 1965, 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,700 vehicles a day, roughly 8% of them trucks, projected to reach 10,164 by 2043. The structure is 150 ft (45.7 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 15
CrossesWhites Mill Pond
Location3 MI N of Sumter
RouteU.S. Route 15
Coordinates33.98559, -80.32631
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2023)
Projected traffic10,164 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 15 over Whites Mill Pond built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1965.

What condition is US 15 over Whites Mill Pond in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does US 15 over Whites Mill Pond carry?

About 7,700 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 15 over Whites Mill Pond?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns US 15 over Whites Mill Pond?

It is owned by the State Highway Agency.