US Bridges

Al 139 over Six Mile Creek

Fair

Bibb County, Alabama · 4.0 MI N of Randolph · Structure no. 006385

Built
1958
67 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete
Length
306 ft
9 main spans
Daily traffic
1,420
2017 count
Owner
State
State Highway Agency

About this bridge

Al 139 over Six Mile Creek is a concrete tee beam carrying Al 139 over Six Mile Creek in Bibb County, Alabama. It was built in 1958, so it is 67 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,420 vehicles a day, roughly 20% of them trucks, projected to reach 1,970 by 2039. The structure is 306 ft (93.3 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesAl 139
CrossesSix Mile Creek
Location4.0 MI N of Randolph
RouteState Highway 139
StateAlabama
Coordinates32.95725, -86.91208
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.2 US tons
Inventory rating30.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length306 ft (93.3 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,420 (2017)
Projected traffic1,970 by 2039
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

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$2.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al 139 over Six Mile Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Al 139 over Six Mile Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does Al 139 over Six Mile Creek carry?

About 1,420 vehicles per day (2017 count), of which roughly 20% are trucks.

How long is Al 139 over Six Mile Creek?

The structure is 306 ft (93.3 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns Al 139 over Six Mile Creek?

It is owned by the State Highway Agency.