US Bridges

S-2-45 over I-20

Fair

Aiken County, South Carolina · 2.0 MI NE N Augusta · Structure no. 000000000004695

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
290 ft
4 main spans
Daily traffic
8,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-2-45 over I-20 is a steel stringer/multi-beam or girder carrying S-2-45 over I-20 in Aiken County, South Carolina. It was built in 1966, so it is 59 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 5 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 8,700 vehicles a day, roughly 4% of them trucks, projected to reach 8,961 by 2043. The structure is 290 ft (88.4 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS-2-45
CrossesI-20
Location2.0 MI NE N Augusta
RouteState Highway 45
CountyAiken County
StateSouth Carolina
Coordinates33.54889, -81.95786
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length290 ft (88.4 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2023)
Projected traffic8,961 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$804,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-2-45 over I-20 built?

It was built in 1966, making it 59 years old in 2025.

What condition is S-2-45 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 January 2025.

How much traffic does S-2-45 over I-20 carry?

About 8,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S-2-45 over I-20?

The structure is 290 ft (88.4 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns S-2-45 over I-20?

It is owned by the State Highway Agency.