US Bridges

Chattanooga ST over Mill Creek

GoodPosted for load

Whitfield County, Georgia · In North Dalton · Structure no. 000000031350510

Built
1977
48 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
1,010
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chattanooga ST over Mill Creek is a steel stringer/multi-beam or girder carrying Chattanooga ST over Mill Creek in Whitfield 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 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. Its operating status is: posted for load restriction.

It carries about 1,010 vehicles a day, roughly 1% of them trucks, projected to reach 2,652 by 2031. The structure is 70 ft (21.3 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChattanooga ST
CrossesMill Creek
LocationIn North Dalton
RouteCity Street 874
StateGeorgia
Coordinates34.78853, -84.97517
Functional classUrban Local

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 statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,010 (2024)
Projected traffic2,652 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$410,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Chattanooga ST over Mill Creek built?

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

What condition is Chattanooga ST 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 Chattanooga ST over Mill Creek carry?

About 1,010 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Chattanooga ST over Mill Creek?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns Chattanooga ST over Mill Creek?

It is owned by the City or Municipal Highway Agency.