US Bridges

I-75 over Mill Creek

Good

Whitfield County, Georgia · In NW Dalton · Structure no. 000000031300450

Built
1964
61 years old, rebuilt 2016
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
245 ft
5 main spans
Daily traffic
88,100
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 over Mill Creek is a steel stringer/multi-beam or girder carrying I-75 over Mill Creek in Whitfield County, Georgia. It was built in 1964 and reconstructed in 2016, so it is 61 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 88,100 vehicles a day, roughly 1% of them trucks, projected to reach 121,665 by 2031. The structure is 245 ft (74.7 m) long and 209 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-75
CrossesMill Creek
LocationIn NW Dalton
RouteInterstate 75
StateGeorgia
Coordinates34.79619, -85.00231
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length245 ft (74.7 m)
Longest span49 ft (14.9 m)
Deck width209 ft (63.7 m)
Roadway width200 ft (61 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88,100 (2024)
Projected traffic121,665 by 2031
Trucks1%
Lanes on structure9
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$3.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 over Mill Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2016.

What condition is I-75 over Mill 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 June 2024.

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

About 88,100 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 over Mill Creek?

The structure is 245 ft (74.7 m) long with a longest span of 49 ft (14.9 m) and a deck 209 ft wide.

Who owns I-75 over Mill Creek?

It is owned by the State Highway Agency.