US Bridges

I - 459 North over Derby Parkway

Fair

Jefferson County, Alabama · I459 at Derby Parkway · Structure no. 015964

Built
1994
31 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
215 ft
3 main spans
Daily traffic
28,675
2024 count
Owner
State
State Highway Agency

About this bridge

I - 459 North over Derby Parkway is a steel continuous stringer/multi-beam or girder carrying I - 459 North over Derby Parkway in Jefferson County, Alabama. It was built in 1994, so it is 31 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 28,675 vehicles a day, roughly 12% of them trucks, projected to reach 36,257 by 2044. The structure is 215 ft (65.5 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI - 459 North
CrossesDerby Parkway
LocationI459 at Derby Parkway
RouteInterstate 459
CountyJefferson County
StateAlabama
Coordinates33.5719, -86.63791
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 inspectionAugust 2024
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 rating90.4 US tons
Inventory rating54.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span101 ft (30.8 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,675 (2024)
Projected traffic36,257 by 2044
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 459 North over Derby Parkway built?

It was built in 1994, making it 31 years old in 2025.

What condition is I - 459 North over Derby Parkway 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 2024.

How much traffic does I - 459 North over Derby Parkway carry?

About 28,675 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is I - 459 North over Derby Parkway?

The structure is 215 ft (65.5 m) long with a longest span of 101 ft (30.8 m) and a deck 58 ft wide.

Who owns I - 459 North over Derby Parkway?

It is owned by the State Highway Agency.