US Bridges

I - 459 South over Ramps C*d

Fair

Jefferson County, Alabama · I 65 * I 459 Interchange · Structure no. 011746

Built
1977
48 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
708 ft
7 main spans
Daily traffic
51,820
2024 count
Owner
State
State Highway Agency

About this bridge

I - 459 South over Ramps C*d is a steel continuous stringer/multi-beam or girder carrying I - 459 South over Ramps C*d in Jefferson County, Alabama. It was built in 1977, so it is 48 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 51,820 vehicles a day, roughly 10% of them trucks, projected to reach 65,522 by 2044. The structure is 708 ft (215.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI - 459 South
CrossesRamps C*d
LocationI 65 * I 459 Interchange
RouteInterstate 459
CountyJefferson County
StateAlabama
Coordinates33.39336, -86.78574
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length708 ft (215.8 m)
Longest span136 ft (41.5 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deck23 ft (7 m)

Traffic and service

Average daily traffic51,820 (2024)
Projected traffic65,522 by 2044
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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$8.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 459 South over Ramps C*d built?

It was built in 1977, making it 48 years old in 2025.

What condition is I - 459 South over Ramps C*d 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 May 2024.

How much traffic does I - 459 South over Ramps C*d carry?

About 51,820 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I - 459 South over Ramps C*d?

The structure is 708 ft (215.8 m) long with a longest span of 136 ft (41.5 m) and a deck 55 ft wide.

Who owns I - 459 South over Ramps C*d?

It is owned by the State Highway Agency.