US Bridges

S-28-120 over Sandy Branch

Good

Kershaw County, South Carolina · 2 MI W of Elgin · Structure no. 000000000004836

Built
2015
10 years old
Condition
Good
inspected February 2025
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
300
2023 count
Owner
State
State Highway Agency

About this bridge

S-28-120 over Sandy Branch is a prestressed concrete slab carrying S-28-120 over Sandy Branch in Kershaw County, South Carolina. It was built in 2015, so it is 10 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 384 by 2043. The structure is 70 ft (21.3 m) long and 36 ft wide.

CarriesS-28-120
CrossesSandy Branch
Location2 MI W of Elgin
RouteState Highway 120
Coordinates34.17182, -80.83042
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic384 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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-28-120 over Sandy Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is S-28-120 over Sandy Branch 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 February 2025.

How much traffic does S-28-120 over Sandy Branch carry?

About 300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-28-120 over Sandy Branch?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns S-28-120 over Sandy Branch?

It is owned by the State Highway Agency.