US Bridges

AL9 Nbl over I85 Sbl

Fair

Montgomery County, Alabama · E.Bypass and I85 Interche · Structure no. 008260

Built
1964
61 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete Continuous
Length
192 ft
3 main spans
Daily traffic
28,770
2013 count
Owner
State
State Highway Agency

About this bridge

AL9 Nbl over I85 Sbl is a concrete continuous tee beam carrying AL9 Nbl over I85 Sbl in Montgomery County, Alabama. It was built in 1964, so it is 61 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 28,770 vehicles a day, roughly 3% of them trucks, projected to reach 39,209 by 2033. The structure is 192 ft (58.5 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAL9 Nbl
CrossesI85 Sbl
LocationE.Bypass and I85 Interche
RouteU.S. Route 80
CountyMontgomery County
StateAlabama
Coordinates32.36304, -86.21334
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.4 US tons
Inventory rating33.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span73 ft (22.3 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,770 (2013)
Projected traffic39,209 by 2033
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$2.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was AL9 Nbl over I85 Sbl built?

It was built in 1964, making it 61 years old in 2025.

What condition is AL9 Nbl over I85 Sbl 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 January 2024.

How much traffic does AL9 Nbl over I85 Sbl carry?

About 28,770 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is AL9 Nbl over I85 Sbl?

The structure is 192 ft (58.5 m) long with a longest span of 73 ft (22.3 m) and a deck 55 ft wide.

Who owns AL9 Nbl over I85 Sbl?

It is owned by the State Highway Agency.