US Bridges

I65 Nbl/Sbl over Alabama River and RR

Fair

Montgomery County, Alabama · 0.8 Mi.S.Of AL.152 · Structure no. 010880

Built
1973
52 years old
Condition
Fair
inspected March 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
2,454 ft
3 main spans
Daily traffic
38,750
2013 count
Owner
State
State Highway Agency

About this bridge

I65 Nbl/Sbl over Alabama River and RR is a steel continuous girder and floorbeam system carrying I65 Nbl/Sbl over Alabama River and RR in Montgomery County, Alabama. It was built in 1973, so it is 52 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 5 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 38,750 vehicles a day, roughly 12% of them trucks, projected to reach 49,093 by 2033. The structure is 2,454 ft (748 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI65 Nbl/Sbl
CrossesAlabama River and RR
Location0.8 Mi.S.Of AL.152
RouteInterstate 65
StateAlabama
Coordinates32.37772, -86.32205
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.2 US tons
Inventory rating30.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+19 approach)
Design loadHS 20
Structure length2,454 ft (748 m)
Longest span260 ft (79.2 m)
Deck width45 ft (13.6 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,750 (2013)
Projected traffic49,093 by 2033
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$24.8 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I65 Nbl/Sbl over Alabama River and RR built?

It was built in 1973, making it 52 years old in 2025.

What condition is I65 Nbl/Sbl over Alabama River and RR 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 March 2024.

How much traffic does I65 Nbl/Sbl over Alabama River and RR carry?

About 38,750 vehicles per day (2013 count), of which roughly 12% are trucks.

How long is I65 Nbl/Sbl over Alabama River and RR?

The structure is 2,454 ft (748 m) long with a longest span of 260 ft (79.2 m) and a deck 45 ft wide.

Who owns I65 Nbl/Sbl over Alabama River and RR?

It is owned by the State Highway Agency.