US Bridges

C-23-2221 over Rock Creek

Good

Greenville County, South Carolina · 6.7 MI NE Mauldin · Structure no. 000000000009196

Built
1997
28 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

C-23-2221 over Rock Creek is a prestressed concrete slab carrying C-23-2221 over Rock Creek in Greenville County, South Carolina. It was built in 1997, so it is 28 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2043. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesC-23-2221
CrossesRock Creek
Location6.7 MI NE Mauldin
RouteCounty Highway 2221
Coordinates34.8421, -82.217
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic192 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 C-23-2221 over Rock Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is C-23-2221 over Rock 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 July 2024.

How much traffic does C-23-2221 over Rock Creek carry?

About 150 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-23-2221 over Rock Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns C-23-2221 over Rock Creek?

It is owned by the County Highway Agency.