US Bridges

US 221 Sbl over Coronaca Creek

Fair

Greenwood County, South Carolina · 5.1 MI NE of Greenwood · Structure no. 000000000001825

Built
1951
74 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
7,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 221 Sbl over Coronaca Creek is a concrete tee beam carrying US 221 Sbl over Coronaca Creek in Greenwood County, South Carolina. It was built in 1951, so it is 74 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 7,500 vehicles a day, roughly 11% of them trucks, projected to reach 11,700 by 2043. The structure is 150 ft (45.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 221 Sbl
CrossesCoronaca Creek
Location5.1 MI NE of Greenwood
RouteU.S. Route 221
CountyGreenwood County
StateSouth Carolina
Coordinates34.2439, -82.10056
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2023)
Projected traffic11,700 by 2043
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 221 Sbl over Coronaca Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is US 221 Sbl over Coronaca 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 March 2024.

How much traffic does US 221 Sbl over Coronaca Creek carry?

About 7,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 221 Sbl over Coronaca Creek?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns US 221 Sbl over Coronaca Creek?

It is owned by the State Highway Agency.