US Bridges

I-520 EB over US 25 Con

Good

Aiken County, South Carolina · North Augusta · Structure no. 000000000009869

Built
2008
17 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
10,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-520 EB over US 25 Con is a prestressed concrete stringer/multi-beam or girder carrying I-520 EB over US 25 Con in Aiken County, South Carolina. It was built in 2008, so it is 17 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 17% of them trucks, projected to reach 12,300 by 2043. The structure is 95 ft (29 m) long and 59 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesI-520 EB
CrossesUS 25 Con
LocationNorth Augusta
RouteInterstate 520
Coordinates33.55133, -81.92853
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.7 US tons
Inventory rating59.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length95 ft (29 m)
Longest span95 ft (29 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2023)
Projected traffic12,300 by 2043
Trucks17%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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-520 EB over US 25 Con built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-520 EB over US 25 Con 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 January 2024.

How much traffic does I-520 EB over US 25 Con carry?

About 10,000 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is I-520 EB over US 25 Con?

The structure is 95 ft (29 m) long with a longest span of 95 ft (29 m) and a deck 59 ft wide.

Who owns I-520 EB over US 25 Con?

It is owned by the State Highway Agency.