US Bridges

I-520 over SR 4 (us 1)

Good

Richmond County, Georgia · 7.8 MI N of Hephzibah · Structure no. 000000024500610

Built
1973
52 years old, rebuilt 2014
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
191 ft
4 main spans
Daily traffic
82,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-520 over SR 4 (us 1) is a steel stringer/multi-beam or girder carrying I-520 over SR 4 (us 1) in Richmond County, Georgia. It was built in 1973 and reconstructed in 2014, so it is 52 years old, older than the Georgia average of 47.5 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 82,000 vehicles a day, roughly 7% of them trucks, projected to reach 117,250 by 2034. The structure is 191 ft (58.2 m) long and 143 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-520
CrossesSR 4 (us 1)
Location7.8 MI N of Hephzibah
RouteInterstate 520
CountyRichmond County
StateGeorgia
Coordinates33.42353, -82.05899
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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating26.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length191 ft (58.2 m)
Longest span57 ft (17.4 m)
Deck width143 ft (43.7 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82,000 (2024)
Projected traffic117,250 by 2034
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
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$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-520 over SR 4 (us 1) built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2014.

What condition is I-520 over SR 4 (us 1) 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 October 2023.

How much traffic does I-520 over SR 4 (us 1) carry?

About 82,000 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I-520 over SR 4 (us 1)?

The structure is 191 ft (58.2 m) long with a longest span of 57 ft (17.4 m) and a deck 143 ft wide.

Who owns I-520 over SR 4 (us 1)?

It is owned by the State Highway Agency.