US Bridges

I - 59 SB Ramp over Ramp B to 1st Ave No

Fair

Jefferson County, Alabama · I59 * 1 ST Ave N · Structure no. 011564

Built
1976
49 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
3 main spans
Daily traffic
6,918
2024 count
Owner
State
State Highway Agency

About this bridge

I - 59 SB Ramp over Ramp B to 1st Ave No is a steel stringer/multi-beam or girder carrying I - 59 SB Ramp over Ramp B to 1st Ave No 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 6,918 vehicles a day, roughly 10% of them trucks, projected to reach 8,559 by 2044. The structure is 137 ft (41.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI - 59 SB Ramp
CrossesRamp B to 1st Ave No
LocationI59 * 1 ST Ave N
RouteInterstate 59
CountyJefferson County
StateAlabama
Coordinates33.56869, -86.72219
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.
Substructure7 GoodSome minor problems.
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 rating83 US tons
Inventory rating49.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span63 ft (19.2 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,918 (2024)
Projected traffic8,559 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 59 SB Ramp over Ramp B to 1st Ave No built?

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

What condition is I - 59 SB Ramp over Ramp B to 1st Ave No 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 SB Ramp over Ramp B to 1st Ave No carry?

About 6,918 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I - 59 SB Ramp over Ramp B to 1st Ave No?

The structure is 137 ft (41.8 m) long with a longest span of 63 ft (19.2 m) and a deck 28 ft wide.

Who owns I - 59 SB Ramp over Ramp B to 1st Ave No?

It is owned by the State Highway Agency.