US Bridges

Ramp D over I59*

Fair

Jefferson County, Alabama · I59 * I459 Interchange · Structure no. 011345

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
357 ft
3 main spans
Daily traffic
5,879
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp D over I59* is a steel continuous stringer/multi-beam or girder carrying Ramp D over I59* in Jefferson County, Alabama. It was built in 1975, so it is 50 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 5,879 vehicles a day, roughly 14% of them trucks, projected to reach 7,273 by 2044. The structure is 357 ft (108.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp D
CrossesI59*
LocationI59 * I459 Interchange
RouteInterstate 59
CountyJefferson County
StateAlabama
Coordinates33.59778, -86.65417
Functional classRural 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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.6 US tons
Inventory rating23.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHS 20
Structure length357 ft (108.8 m)
Longest span123 ft (37.5 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic5,879 (2024)
Projected traffic7,273 by 2044
Trucks14%
Lanes on structure2
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$3.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp D over I59* built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ramp D over I59* 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 Ramp D over I59* carry?

About 5,879 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Ramp D over I59*?

The structure is 357 ft (108.8 m) long with a longest span of 123 ft (37.5 m) and a deck 42 ft wide.

Who owns Ramp D over I59*?

It is owned by the State Highway Agency.