US Bridges

S-42-123 over Grays Creek

Good

Spartanburg County, South Carolina · 6.6 MI W Spartanburg · Structure no. 000000000007740

Built
1983
42 years old
Condition
Good
inspected September 2023
Type
Channel Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
4,800
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-123 over Grays Creek is a prestressed concrete channel beam carrying S-42-123 over Grays Creek in Spartanburg County, South Carolina. It was built in 1983, so it is 42 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 4,800 vehicles a day, roughly 3% of them trucks, projected to reach 7,200 by 2043. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-42-123
CrossesGrays Creek
Location6.6 MI W Spartanburg
RouteState Highway 123
Coordinates34.97026, -82.04423
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadH 15
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic7,200 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-42-123 over Grays Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is S-42-123 over Grays 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 September 2023.

How much traffic does S-42-123 over Grays Creek carry?

About 4,800 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-42-123 over Grays Creek?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns S-42-123 over Grays Creek?

It is owned by the State Highway Agency.