US Bridges

C-46-748 over Sc 122 & RR NS

Fair

York County, South Carolina · City of Rock Hill · Structure no. 000000000006412

Built
1973
52 years old, rebuilt 2020
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
253 ft
4 main spans
Daily traffic
7,300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

C-46-748 over Sc 122 & RR NS is a steel stringer/multi-beam or girder carrying C-46-748 over Sc 122 & RR NS in York County, South Carolina. It was built in 1973 and reconstructed in 2020, so it is 52 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 7,300 vehicles a day, roughly 2% of them trucks, projected to reach 9,709 by 2043. The structure is 253 ft (77.1 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesC-46-748
CrossesSc 122 & RR NS
LocationCity of Rock Hill
RouteCounty Highway 748
CountyYork County
StateSouth Carolina
Coordinates34.9294, -81.02288
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length253 ft (77.1 m)
Longest span92 ft (28 m)
Deck width73 ft (22.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2023)
Projected traffic9,709 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was C-46-748 over Sc 122 & RR NS built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2020.

What condition is C-46-748 over Sc 122 & RR NS 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 June 2024.

How much traffic does C-46-748 over Sc 122 & RR NS carry?

About 7,300 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is C-46-748 over Sc 122 & RR NS?

The structure is 253 ft (77.1 m) long with a longest span of 92 ft (28 m) and a deck 73 ft wide.

Who owns C-46-748 over Sc 122 & RR NS?

It is owned by the City or Municipal Highway Agency.