US Bridges

S-23-279 over Mountain Creek

Good

Greenville County, South Carolina · 4.7MI W Greer · Structure no. 000000000003886

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
3 main spans
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

S-23-279 over Mountain Creek is a prestressed concrete stringer/multi-beam or girder carrying S-23-279 over Mountain Creek in Greenville County, South Carolina. It was built in 2005, so it is 20 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 10,500 vehicles a day, roughly 3% of them trucks, projected to reach 16,065 by 2043. The structure is 140 ft (42.7 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-23-279
CrossesMountain Creek
Location4.7MI W Greer
RouteState Highway 279
Coordinates34.9239, -82.30916
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.6 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length140 ft (42.7 m)
Longest span50 ft (15.2 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic16,065 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 S-23-279 over Mountain Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is S-23-279 over Mountain 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 May 2023.

How much traffic does S-23-279 over Mountain Creek carry?

About 10,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-23-279 over Mountain Creek?

The structure is 140 ft (42.7 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.

Who owns S-23-279 over Mountain Creek?

It is owned by the State Highway Agency.