US Bridges

S-24-271 over Coronaca Creek

FairPosted for load

Greenwood County, South Carolina · 1.5MI SW Coronaca · Structure no. 000000000003668

Built
1961
64 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
4 main spans
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-24-271 over Coronaca Creek is a prestressed concrete stringer/multi-beam or girder carrying S-24-271 over Coronaca Creek in Greenwood County, South Carolina. It was built in 1961, so it is 64 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. Its operating status is: posted for load restriction.

It carries about 2,700 vehicles a day, roughly 5% of them trucks, projected to reach 3,807 by 2043. The structure is 120 ft (36.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesS-24-271
CrossesCoronaca Creek
Location1.5MI SW Coronaca
RouteState Highway 271
CountyGreenwood County
StateSouth Carolina
Coordinates34.2498, -82.11674
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating11.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadH 10
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic3,807 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$687,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-24-271 over Coronaca Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is S-24-271 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 2023.

How much traffic does S-24-271 over Coronaca Creek carry?

About 2,700 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-24-271 over Coronaca Creek?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns S-24-271 over Coronaca Creek?

It is owned by the State Highway Agency.