US Bridges

I-520 over US 25 Ramp (R-8007)

Good

Aiken County, South Carolina · North Augusta · Structure no. 000000000009919

Built
2009
16 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
1,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-520 over US 25 Ramp (R-8007) is a prestressed concrete stringer/multi-beam or girder carrying I-520 over US 25 Ramp (R-8007) in Aiken County, South Carolina. It was built in 2009, so it is 16 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 1,550 vehicles a day, roughly 8% of them trucks, projected to reach 3,845 by 2042. The structure is 110 ft (33.4 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesI-520
CrossesUS 25 Ramp (R-8007)
LocationNorth Augusta
RouteInterstate 520
Coordinates33.56598, -81.93004
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 alignment6: Equal to present minimum criteria
Operating rating92.5 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length110 ft (33.4 m)
Longest span110 ft (33.4 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,550 (2023)
Projected traffic3,845 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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-520 over US 25 Ramp (R-8007) built?

It was built in 2009, making it 16 years old in 2025.

What condition is I-520 over US 25 Ramp (R-8007) 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 over US 25 Ramp (R-8007) carry?

About 1,550 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-520 over US 25 Ramp (R-8007)?

The structure is 110 ft (33.4 m) long with a longest span of 110 ft (33.4 m) and a deck 39 ft wide.

Who owns I-520 over US 25 Ramp (R-8007)?

It is owned by the State Highway Agency.