US Bridges

I - 59 North over Ramp B to 1st Ave N

Fair

Jefferson County, Alabama · I59 * 1st Ave No · Structure no. 011566

Built
1976
49 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
3 main spans
Daily traffic
34,590
2024 count
Owner
State
State Highway Agency

About this bridge

I - 59 North over Ramp B to 1st Ave N is a steel stringer/multi-beam or girder carrying I - 59 North over Ramp B to 1st Ave N in Jefferson County, Alabama. It was built in 1976, so it is 49 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 34,590 vehicles a day, roughly 10% of them trucks, projected to reach 42,795 by 2044. The structure is 177 ft (54.1 m) long and 54 ft wide.

Location

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CarriesI - 59 North
CrossesRamp B to 1st Ave N
LocationI59 * 1st Ave No
RouteInterstate 59
CountyJefferson County
StateAlabama
Coordinates33.568, -86.7229
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 inspectionMarch 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 alignment7: Better than present minimum criteria
Operating rating81.4 US tons
Inventory rating48.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length177 ft (54.1 m)
Longest span83 ft (25.3 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,590 (2024)
Projected traffic42,795 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 59 North over Ramp B to 1st Ave N built?

It was built in 1976, making it 49 years old in 2025.

What condition is I - 59 North over Ramp B to 1st Ave N 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 I - 59 North over Ramp B to 1st Ave N carry?

About 34,590 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I - 59 North over Ramp B to 1st Ave N?

The structure is 177 ft (54.1 m) long with a longest span of 83 ft (25.3 m) and a deck 54 ft wide.

Who owns I - 59 North over Ramp B to 1st Ave N?

It is owned by the State Highway Agency.