US Bridges

I-520 over Rocky Creek Trib

Good

Richmond County, Georgia · 7.7 MI N of Hephzibah · Structure no. 000000024500650

Built
1981
44 years old, rebuilt 2003
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
64 ft
7 main spans
Daily traffic
46,500
2024 count
Owner
State
State Highway Agency

About this bridge

I-520 over Rocky Creek Trib is a concrete culvert carrying I-520 over Rocky Creek Trib in Richmond County, Georgia. It was built in 1981 and reconstructed in 2003, so it is 44 years old, younger 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 46,500 vehicles a day, roughly 1% of them trucks, projected to reach 54,630 by 2032. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-520
CrossesRocky Creek Trib
Location7.7 MI N of Hephzibah
RouteInterstate 520
StateGeorgia
Coordinates33.40389, -82.01849
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadHS 20 + Mod
Structure length64 ft (19.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,500 (2024)
Projected traffic54,630 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$580,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-520 over Rocky Creek Trib built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2003.

What condition is I-520 over Rocky Creek Trib 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 Rocky Creek Trib carry?

About 46,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-520 over Rocky Creek Trib?

The structure is 64 ft (19.5 m) long with a longest span of 8 ft (2.4 m).

Who owns I-520 over Rocky Creek Trib?

It is owned by the State Highway Agency.