US Bridges

US 521 over Trib to Wateree River

Fair

Kershaw County, South Carolina · 4MI S of Camden · Structure no. 000000000002998

Built
1959
66 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
8,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 521 over Trib to Wateree River is a concrete culvert carrying US 521 over Trib to Wateree River in Kershaw County, South Carolina. It was built in 1959, so it is 66 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 6 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 8,500 vehicles a day, roughly 11% of them trucks, projected to reach 14,790 by 2043. The structure is 26 ft (7.9 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 521
CrossesTrib to Wateree River
Location4MI S of Camden
RouteU.S. Route 521
Coordinates34.18258, -80.57644
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width48 ft (14.6 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2023)
Projected traffic14,790 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 521 over Trib to Wateree River built?

It was built in 1959, making it 66 years old in 2025.

What condition is US 521 over Trib to Wateree River 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 January 2024.

How much traffic does US 521 over Trib to Wateree River carry?

About 8,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 521 over Trib to Wateree River?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 48 ft wide.

Who owns US 521 over Trib to Wateree River?

It is owned by the State Highway Agency.