US Bridges

S-1-121 over CSX RR

Fair

Abbeville County, South Carolina · 4.8MI NE Calhoun Falls · Structure no. 000000000006032

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
50
2023 count
Owner
State
State Highway Agency

About this bridge

S-1-121 over CSX RR is a prestressed concrete stringer/multi-beam or girder carrying S-1-121 over CSX RR in Abbeville County, South Carolina. It was built in 1972, so it is 53 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 50 vehicles a day, projected to reach 64 by 2043. The structure is 156 ft (47.5 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesS-1-121
CrossesCSX RR
Location4.8MI NE Calhoun Falls
RouteState Highway 121
CountyAbbeville County
StateSouth Carolina
Coordinates34.11765, -82.52136
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length156 ft (47.5 m)
Longest span52 ft (15.8 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic64 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 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-1-121 over CSX RR built?

It was built in 1972, making it 53 years old in 2025.

What condition is S-1-121 over CSX RR 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 October 2024.

How much traffic does S-1-121 over CSX RR carry?

About 50 vehicles per day (2023 count).

How long is S-1-121 over CSX RR?

The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.8 m) and a deck 31 ft wide.

Who owns S-1-121 over CSX RR?

It is owned by the State Highway Agency.