US Bridges

S-13-20 over Indian Creek

Fair

Chesterfield County, South Carolina · 3.5 MI SE Chesterfield · Structure no. 000000000001608

Built
1949
76 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
44 ft
4 main spans
Daily traffic
1,050
2023 count
Owner
State
State Highway Agency

About this bridge

S-13-20 over Indian Creek is a concrete culvert carrying S-13-20 over Indian Creek in Chesterfield County, South Carolina. It was built in 1949, so it is 76 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 1,050 vehicles a day, roughly 7% of them trucks, projected to reach 1,533 by 2043. The structure is 44 ft (13.4 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS-13-20
CrossesIndian Creek
Location3.5 MI SE Chesterfield
RouteState Highway 20
Coordinates34.70523, -80.04049
Functional classRural Major 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span11 ft (3.4 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2023)
Projected traffic1,533 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 S-13-20 over Indian Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is S-13-20 over Indian 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 December 2024.

How much traffic does S-13-20 over Indian Creek carry?

About 1,050 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-13-20 over Indian Creek?

The structure is 44 ft (13.4 m) long with a longest span of 11 ft (3.4 m) and a deck 37 ft wide.

Who owns S-13-20 over Indian Creek?

It is owned by the State Highway Agency.