US Bridges

Thomas Mill Road over Six Mile Creek

Good

Bibb County, Alabama · 3 Miles N of Antioch · Structure no. 018977

Built
2004
21 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
195 ft
1 main span
Daily traffic
50
2004 count
Owner
County
County Highway Agency

About this bridge

Thomas Mill Road over Six Mile Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Thomas Mill Road over Six Mile Creek in Bibb County, Alabama. It was built in 2004, so it is 21 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 55 by 2030. The structure is 195 ft (59.4 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesThomas Mill Road
CrossesSix Mile Creek
Location3 Miles N of Antioch
RouteCounty Highway 6
StateAlabama
Coordinates32.97238, -86.95864
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating79.6 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span115 ft (35.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2004)
Projected traffic55 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Thomas Mill Road over Six Mile Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Thomas Mill Road over Six Mile 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 December 2024.

How much traffic does Thomas Mill Road over Six Mile Creek carry?

About 50 vehicles per day (2004 count).

How long is Thomas Mill Road over Six Mile Creek?

The structure is 195 ft (59.4 m) long with a longest span of 115 ft (35.1 m) and a deck 30 ft wide.

Who owns Thomas Mill Road over Six Mile Creek?

It is owned by the County Highway Agency.