US Bridges

I-75 over Flat Creek

Good

Houston County, Georgia · 3 MI SW of Perry · Structure no. 000000015300460

Built
1963
62 years old, rebuilt 2007
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete
Length
128 ft
4 main spans
Daily traffic
57,600
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 over Flat Creek is a concrete tee beam carrying I-75 over Flat Creek in Houston County, Georgia. It was built in 1963 and reconstructed in 2007, 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 57,600 vehicles a day, roughly 26% of them trucks, projected to reach 63,870 by 2032. The structure is 128 ft (39 m) long and 139 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75
CrossesFlat Creek
Location3 MI SW of Perry
RouteInterstate 75
StateGeorgia
Coordinates32.41883, -83.76102
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length128 ft (39 m)
Longest span32 ft (9.8 m)
Deck width139 ft (42.5 m)
Roadway width134 ft (40.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,600 (2024)
Projected traffic63,870 by 2032
Trucks26%
Lanes on structure6
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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 over Flat Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2007.

What condition is I-75 over Flat 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 August 2023.

How much traffic does I-75 over Flat Creek carry?

About 57,600 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is I-75 over Flat Creek?

The structure is 128 ft (39 m) long with a longest span of 32 ft (9.8 m) and a deck 139 ft wide.

Who owns I-75 over Flat Creek?

It is owned by the State Highway Agency.