US Bridges

Ramp N31N65 over Al - 3 (us 31)

Fair

Jefferson County, Alabama · No. I-22/I-65 Int. · Structure no. 019048

Built
2016
9 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
528 ft
3 main spans
Daily traffic
500
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp N31N65 over Al - 3 (us 31) is a steel continuous stringer/multi-beam or girder carrying Ramp N31N65 over Al - 3 (us 31) in Jefferson County, Alabama. It was built in 2016, so it is 9 years old, younger 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 750 by 2044. The structure is 528 ft (160.9 m) long and 43 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesRamp N31N65
CrossesAl - 3 (us 31)
LocationNo. I-22/I-65 Int.
RouteInterstate 65
CountyJefferson County
StateAlabama
Coordinates33.5873, -86.80478
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length528 ft (160.9 m)
Longest span213 ft (64.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2024)
Projected traffic750 by 2044
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp N31N65 over Al - 3 (us 31) built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ramp N31N65 over Al - 3 (us 31) 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 2024.

How much traffic does Ramp N31N65 over Al - 3 (us 31) carry?

About 500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Ramp N31N65 over Al - 3 (us 31)?

The structure is 528 ft (160.9 m) long with a longest span of 213 ft (64.8 m) and a deck 43 ft wide.

Who owns Ramp N31N65 over Al - 3 (us 31)?

It is owned by the State Highway Agency.