US Bridges

I-75 (nbl) over CR 397 Allatoona Road

Good

Bartow County, Georgia · 1.1 MI SE of Emerson · Structure no. 000000001500810

Built
1976
49 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
281 ft
4 main spans
Daily traffic
97,700
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 (nbl) over CR 397 Allatoona Road is a steel stringer/multi-beam or girder carrying I-75 (nbl) over CR 397 Allatoona Road in Bartow County, Georgia. It was built in 1976, so it is 49 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 97,700 vehicles a day, roughly 1% of them trucks, projected to reach 132,885 by 2031. The structure is 281 ft (85.6 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 (nbl)
CrossesCR 397 Allatoona Road
Location1.1 MI SE of Emerson
RouteInterstate 75
CountyBartow County
StateGeorgia
Coordinates34.11861, -84.73923
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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length281 ft (85.6 m)
Longest span76 ft (23.2 m)
Deck width62 ft (19 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97,700 (2024)
Projected traffic132,885 by 2031
Trucks1%
Lanes on structure3
Traffic directionOne-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$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 (nbl) over CR 397 Allatoona Road built?

It was built in 1976, making it 49 years old in 2025.

What condition is I-75 (nbl) over CR 397 Allatoona Road 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 2024.

How much traffic does I-75 (nbl) over CR 397 Allatoona Road carry?

About 97,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 (nbl) over CR 397 Allatoona Road?

The structure is 281 ft (85.6 m) long with a longest span of 76 ft (23.2 m) and a deck 62 ft wide.

Who owns I-75 (nbl) over CR 397 Allatoona Road?

It is owned by the State Highway Agency.