US Bridges

I65 Nbl/Sbl over Al.River Relief NO.4

Fair

Montgomery County, Alabama · 1.9 Mi.N.Of Al.River · Structure no. 010698

Built
1972
53 years old, rebuilt 1999
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
578 ft
17 main spans
Daily traffic
40,620
2013 count
Owner
State
State Highway Agency

About this bridge

I65 Nbl/Sbl over Al.River Relief NO.4 is a concrete tee beam carrying I65 Nbl/Sbl over Al.River Relief NO.4 in Montgomery County, Alabama. It was built in 1972 and reconstructed in 1999, so it is 53 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 40,620 vehicles a day, roughly 14% of them trucks, projected to reach 51,462 by 2033. The structure is 578 ft (176.2 m) long and 126 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI65 Nbl/Sbl
CrossesAl.River Relief NO.4
Location1.9 Mi.N.Of Al.River
RouteInterstate 65
CountyMontgomery County
StateAlabama
Coordinates32.40208, -86.33787
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.1 US tons
Inventory rating25.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length578 ft (176.2 m)
Longest span34 ft (10.4 m)
Deck width126 ft (38.3 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,620 (2013)
Projected traffic51,462 by 2033
Trucks14%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for 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 proposedNone recorded
Estimated improvement cost$17.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I65 Nbl/Sbl over Al.River Relief NO.4 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1999.

What condition is I65 Nbl/Sbl over Al.River Relief NO.4 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 August 2023.

How much traffic does I65 Nbl/Sbl over Al.River Relief NO.4 carry?

About 40,620 vehicles per day (2013 count), of which roughly 14% are trucks.

How long is I65 Nbl/Sbl over Al.River Relief NO.4?

The structure is 578 ft (176.2 m) long with a longest span of 34 ft (10.4 m) and a deck 126 ft wide.

Who owns I65 Nbl/Sbl over Al.River Relief NO.4?

It is owned by the State Highway Agency.