US Bridges

I-75 (nbl) over CR645-CR397-ALLATOONA Lk

Fair

Bartow County, Georgia · 3.6 MI SE of Emerson · Structure no. 000000001500770

Built
1977
48 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,429 ft
12 main spans
Daily traffic
102,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 (nbl) over CR645-CR397-ALLATOONA Lk is a steel continuous stringer/multi-beam or girder carrying I-75 (nbl) over CR645-CR397-ALLATOONA Lk in Bartow County, Georgia. It was built in 1977, so it is 48 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 102,000 vehicles a day, roughly 1% of them trucks, projected to reach 125,460 by 2031. The structure is 1,429 ft (435.6 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)
CrossesCR645-CR397-ALLATOONA Lk
Location3.6 MI SE of Emerson
RouteInterstate 75
CountyBartow County
StateGeorgia
Coordinates34.08841, -84.7129
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20 + Mod
Structure length1,429 ft (435.6 m)
Longest span190 ft (57.9 m)
Deck width62 ft (19 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102,000 (2024)
Projected traffic125,460 by 2031
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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$10.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 (nbl) over CR645-CR397-ALLATOONA Lk built?

It was built in 1977, making it 48 years old in 2025.

What condition is I-75 (nbl) over CR645-CR397-ALLATOONA Lk in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does I-75 (nbl) over CR645-CR397-ALLATOONA Lk carry?

About 102,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 (nbl) over CR645-CR397-ALLATOONA Lk?

The structure is 1,429 ft (435.6 m) long with a longest span of 190 ft (57.9 m) and a deck 62 ft wide.

Who owns I-75 (nbl) over CR645-CR397-ALLATOONA Lk?

It is owned by the State Highway Agency.