US Bridges

I-20 EB over S.C. 19

Fair

Aiken County, South Carolina · 6 MI N of Aiken · Structure no. 000000000005190

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
4 main spans
Daily traffic
18,700
2023 count
Owner
State
State Highway Agency

About this bridge

I-20 EB over S.C. 19 is a prestressed concrete stringer/multi-beam or girder carrying I-20 EB over S.C. 19 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 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 18,700 vehicles a day, roughly 23% of them trucks, projected to reach 20,009 by 2043. The structure is 212 ft (64.6 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-20 EB
CrossesS.C. 19
Location6 MI N of Aiken
RouteInterstate 20
CountyAiken County
StateSouth Carolina
Coordinates33.63913, -81.74048
Functional classRural Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span53 ft (16.2 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,700 (2023)
Projected traffic20,009 by 2043
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-20 EB over S.C. 19 built?

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

What condition is I-20 EB over S.C. 19 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 2024.

How much traffic does I-20 EB over S.C. 19 carry?

About 18,700 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-20 EB over S.C. 19?

The structure is 212 ft (64.6 m) long with a longest span of 53 ft (16.2 m) and a deck 41 ft wide.

Who owns I-20 EB over S.C. 19?

It is owned by the State Highway Agency.