US Bridges

S-2-105 over Over I-20

Fair

Aiken County, South Carolina · 7.0 MI NW Aiken · Structure no. 000000000005198

Built
1968
57 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
264 ft
2 main spans
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

S-2-105 over Over I-20 is a steel stringer/multi-beam or girder carrying S-2-105 over Over I-20 in Aiken County, South Carolina. It was built in 1968, so it is 57 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 1,300 vehicles a day, roughly 2% of them trucks, projected to reach 1,729 by 2043. The structure is 264 ft (80.5 m) long and 38 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesS-2-105
CrossesOver I-20
Location7.0 MI NW Aiken
RouteState Highway 105
Coordinates33.62092, -81.82407
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length264 ft (80.5 m)
Longest span86 ft (26.2 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,729 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-2-105 over Over I-20 built?

It was built in 1968, making it 57 years old in 2025.

What condition is S-2-105 over Over I-20 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 February 2025.

How much traffic does S-2-105 over Over I-20 carry?

About 1,300 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-2-105 over Over I-20?

The structure is 264 ft (80.5 m) long with a longest span of 86 ft (26.2 m) and a deck 38 ft wide.

Who owns S-2-105 over Over I-20?

It is owned by the State Highway Agency.