US Bridges

US 521 over Turkey Creek

Fair

Sumter County, South Carolina · 2 MI S of Sumter · Structure no. 000000000008497

Built
2007
18 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
10,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 521 over Turkey Creek is a concrete continuous slab carrying US 521 over Turkey Creek in Sumter County, South Carolina. It was built in 2007, so it is 18 years old, younger 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 10,400 vehicles a day, roughly 7% of them trucks, projected to reach 7,176 by 2043. The structure is 100 ft (30.5 m) long and 92 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 521
CrossesTurkey Creek
Location2 MI S of Sumter
RouteU.S. Route 521
Coordinates33.87463, -80.33435
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span40 ft (12.2 m)
Deck width92 ft (28 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,400 (2023)
Projected traffic7,176 by 2043
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Turkey Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is US 521 over Turkey Creek 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 June 2024.

How much traffic does US 521 over Turkey Creek carry?

About 10,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 521 over Turkey Creek?

The structure is 100 ft (30.5 m) long with a longest span of 40 ft (12.2 m) and a deck 92 ft wide.

Who owns US 521 over Turkey Creek?

It is owned by the State Highway Agency.