US Bridges

I - 20 West over I - 459 Ramps

Fair

Jefferson County, Alabama · I-20 / I-459 Int · Structure no. 013169

Built
1984
41 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
540 ft
4 main spans
Daily traffic
35,000
2025 count
Owner
State
State Highway Agency

About this bridge

I - 20 West over I - 459 Ramps is a steel continuous stringer/multi-beam or girder carrying I - 20 West over I - 459 Ramps in Jefferson County, Alabama. It was built in 1984, so it is 41 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 35,000 vehicles a day, roughly 21% of them trucks, projected to reach 42,286 by 2045. The structure is 540 ft (164.6 m) long and 58 ft wide.

Location

Open in Google Maps
CarriesI - 20 West
CrossesI - 459 Ramps
LocationI-20 / I-459 Int
RouteInterstate 20
CountyJefferson County
StateAlabama
Coordinates33.54474, -86.64402
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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.6 US tons
Inventory rating53.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length540 ft (164.6 m)
Longest span150 ft (45.7 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deck17 ft (5 m)

Traffic and service

Average daily traffic35,000 (2025)
Projected traffic42,286 by 2045
Trucks21%
Lanes on structure3
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$7.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 20 West over I - 459 Ramps built?

It was built in 1984, making it 41 years old in 2025.

What condition is I - 20 West over I - 459 Ramps 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 February 2025.

How much traffic does I - 20 West over I - 459 Ramps carry?

About 35,000 vehicles per day (2025 count), of which roughly 21% are trucks.

How long is I - 20 West over I - 459 Ramps?

The structure is 540 ft (164.6 m) long with a longest span of 150 ft (45.7 m) and a deck 58 ft wide.

Who owns I - 20 West over I - 459 Ramps?

It is owned by the State Highway Agency.