US Bridges

Sc 9 over Rocky Creek

Good

Chester County, South Carolina · 3.7MI E of Chester · Structure no. 000000000009649

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
170 ft
3 main spans
Daily traffic
5,350
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 over Rocky Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Sc 9 over Rocky Creek in Chester County, South Carolina. It was built in 2001, so it is 24 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,350 vehicles a day, roughly 16% of them trucks, projected to reach 9,309 by 2043. The structure is 170 ft (51.8 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSc 9
CrossesRocky Creek
Location3.7MI E of Chester
RouteState Highway 9
Coordinates34.72189, -81.15163
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span70 ft (21.3 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,350 (2023)
Projected traffic9,309 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sc 9 over Rocky Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Sc 9 over Rocky Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Sc 9 over Rocky Creek carry?

About 5,350 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Sc 9 over Rocky Creek?

The structure is 170 ft (51.8 m) long with a longest span of 70 ft (21.3 m) and a deck 47 ft wide.

Who owns Sc 9 over Rocky Creek?

It is owned by the State Highway Agency.