US Bridges

I85 Nbl over Al 8

Fair

Montgomery County, Alabama · Mitylene Interchange · Structure no. 009007

Built
1966
59 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
172 ft
4 main spans
Daily traffic
19,245
2013 count
Owner
State
State Highway Agency

About this bridge

I85 Nbl over Al 8 is a steel stringer/multi-beam or girder carrying I85 Nbl over Al 8 in Montgomery County, Alabama. It was built in 1966, so it is 59 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 19,245 vehicles a day, roughly 20% of them trucks, projected to reach 25,364 by 2033. The structure is 172 ft (52.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI85 Nbl
CrossesAl 8
LocationMitylene Interchange
RouteInterstate 85
CountyMontgomery County
StateAlabama
Coordinates32.36833, -86.13833
Functional classUrban Principal Arterial - Interstate

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span43 ft (13.1 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,245 (2013)
Projected traffic25,364 by 2033
Trucks20%
Lanes on structure2
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 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$1.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I85 Nbl over Al 8 built?

It was built in 1966, making it 59 years old in 2025.

What condition is I85 Nbl over Al 8 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 April 2023.

How much traffic does I85 Nbl over Al 8 carry?

About 19,245 vehicles per day (2013 count), of which roughly 20% are trucks.

How long is I85 Nbl over Al 8?

The structure is 172 ft (52.4 m) long with a longest span of 43 ft (13.1 m) and a deck 41 ft wide.

Who owns I85 Nbl over Al 8?

It is owned by the State Highway Agency.