US Bridges

I85 Sbl over Branch

Good

Macon County, Alabama · 4.46 Mi. N AL.186 · Structure no. 008604

Built
1965
60 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
15,690
2013 count
Owner
State
State Highway Agency

About this bridge

I85 Sbl over Branch is a concrete continuous culvert carrying I85 Sbl over Branch in Macon County, Alabama. It was built in 1965, so it is 60 years old, older 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 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 15,690 vehicles a day, roughly 27% of them trucks, projected to reach 20,679 by 2033. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI85 Sbl
CrossesBranch
Location4.46 Mi. N AL.186
RouteInterstate 85
StateAlabama
Coordinates32.52337, -85.57222
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,690 (2013)
Projected traffic20,679 by 2033
Trucks27%
Lanes on structure2
Traffic directionOne-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$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I85 Sbl over Branch built?

It was built in 1965, making it 60 years old in 2025.

What condition is I85 Sbl over Branch 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 2023.

How much traffic does I85 Sbl over Branch carry?

About 15,690 vehicles per day (2013 count), of which roughly 27% are trucks.

How long is I85 Sbl over Branch?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns I85 Sbl over Branch?

It is owned by the State Highway Agency.