US Bridges

I-75 Sbl over South Prong Creek

Good

Houston County, Georgia · 7 MI S of Perry · Structure no. 000000015300450

Built
1963
62 years old, rebuilt 1993
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
174,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 Sbl over South Prong Creek is a concrete culvert carrying I-75 Sbl over South Prong Creek in Houston County, Georgia. It was built in 1963 and reconstructed in 1993, so it is 62 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 174,000 vehicles a day, roughly 26% of them trucks, projected to reach 63,870 by 2032. The structure is 46 ft (14 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75 Sbl
CrossesSouth Prong Creek
Location7 MI S of Perry
RouteInterstate 75
StateGeorgia
Coordinates32.36538, -83.7686
Functional classRural 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic174,000 (2024)
Projected traffic63,870 by 2032
Trucks26%
Lanes on structure3
Traffic directionOne-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$343,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 Sbl over South Prong Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1993.

What condition is I-75 Sbl over South Prong Creek 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 July 2023.

How much traffic does I-75 Sbl over South Prong Creek carry?

About 174,000 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is I-75 Sbl over South Prong Creek?

The structure is 46 ft (14 m) long with a longest span of 14 ft (4.3 m).

Who owns I-75 Sbl over South Prong Creek?

It is owned by the State Highway Agency.