US Bridges

Lower Birmingham over Mill Creek

Good

Cherokee County, Georgia · 6 MI E of Holly Springs · Structure no. 000000005750290

Built
1990
35 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
6,290
2024 count
Owner
County
County Highway Agency

About this bridge

Lower Birmingham over Mill Creek is a steel stringer/multi-beam or girder carrying Lower Birmingham over Mill Creek in Cherokee County, Georgia. It was built in 1990, so it is 35 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 6,290 vehicles a day, roughly 1% of them trucks, projected to reach 900 by 2031. The structure is 55 ft (16.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLower Birmingham
CrossesMill Creek
Location6 MI E of Holly Springs
RouteCounty Highway 301
StateGeorgia
Coordinates34.16981, -84.3987
Functional classRural 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.9 US tons
Inventory rating23.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length55 ft (16.8 m)
Longest span55 ft (16.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,290 (2024)
Projected traffic900 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$322,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Birmingham over Mill Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Lower Birmingham 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 April 2024.

How much traffic does Lower Birmingham over Mill Creek carry?

About 6,290 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Lower Birmingham over Mill Creek?

The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 27 ft wide.

Who owns Lower Birmingham over Mill Creek?

It is owned by the County Highway Agency.