US Bridges

Sc 20 over Chickasaw Creek

Fair

Abbeville County, South Carolina · 10.8 MI N W of Abbeville · Structure no. 000000000000370

Built
1930
95 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 20 over Chickasaw Creek is a concrete culvert carrying Sc 20 over Chickasaw Creek in Abbeville County, South Carolina. It was built in 1930, so it is 95 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 1,900 vehicles a day, roughly 9% of them trucks, projected to reach 3,021 by 2043. The structure is 40 ft (12.2 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSc 20
CrossesChickasaw Creek
Location10.8 MI N W of Abbeville
RouteState Highway 20
CountyAbbeville County
StateSouth Carolina
Coordinates34.33528, -82.40271
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width49 ft (14.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic3,021 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Sc 20 over Chickasaw Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Sc 20 over Chickasaw 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 August 2023.

How much traffic does Sc 20 over Chickasaw Creek carry?

About 1,900 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Sc 20 over Chickasaw Creek?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m) and a deck 49 ft wide.

Who owns Sc 20 over Chickasaw Creek?

It is owned by the State Highway Agency.