US Bridges

Sc 9 over Grassy Run Creek

Fair

Chester County, South Carolina · 2MI E of Chester · Structure no. 000000000000486

Built
1931
94 years old, rebuilt 2001
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
10,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 over Grassy Run Creek is a concrete culvert carrying Sc 9 over Grassy Run Creek in Chester County, South Carolina. It was built in 1931 and reconstructed in 2001, so it is 94 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 10,700 vehicles a day, roughly 16% of them trucks, projected to reach 16,692 by 2043. The structure is 32 ft (9.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSc 9
CrossesGrassy Run Creek
Location2MI E of Chester
RouteState Highway 9
CountyChester County
StateSouth Carolina
Coordinates34.71079, -81.17853
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length32 ft (9.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,700 (2023)
Projected traffic16,692 by 2043
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 9 over Grassy Run Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2001.

What condition is Sc 9 over Grassy Run 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 September 2023.

How much traffic does Sc 9 over Grassy Run Creek carry?

About 10,700 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Sc 9 over Grassy Run Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m).

Who owns Sc 9 over Grassy Run Creek?

It is owned by the State Highway Agency.