US Bridges

Carbondale Road over I-75

Good

Whitfield County, Georgia · 8.3 MI S of Dalton · Structure no. 000000031350960

Built
2018
7 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
214 ft
2 main spans
Daily traffic
9,300
2024 count
Owner
State
State Highway Agency

About this bridge

Carbondale Road over I-75 is a prestressed concrete stringer/multi-beam or girder carrying Carbondale Road over I-75 in Whitfield County, Georgia. It was built in 2018, so it is 7 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 9,300 vehicles a day, roughly 1% of them trucks, projected to reach 14,635 by 2035. The structure is 214 ft (65.2 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCarbondale Road
CrossesI-75
Location8.3 MI S of Dalton
RouteCounty Highway 691
StateGeorgia
Coordinates34.65344, -84.9839
Functional classRural Major Collector

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating54.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span107 ft (32.6 m)
Deck width75 ft (23 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2024)
Projected traffic14,635 by 2035
Trucks1%
Lanes on structure4
Traffic directionTwo-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$28.5 million (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Carbondale Road over I-75 built?

It was built in 2018, making it 7 years old in 2025.

What condition is Carbondale Road over I-75 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 June 2024.

How much traffic does Carbondale Road over I-75 carry?

About 9,300 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Carbondale Road over I-75?

The structure is 214 ft (65.2 m) long with a longest span of 107 ft (32.6 m) and a deck 75 ft wide.

Who owns Carbondale Road over I-75?

It is owned by the State Highway Agency.