US Bridges

I - 20/59 W Ramp over 50th ST North

Fair

Jefferson County, Alabama · I 59 * 50 TH ST · Structure no. 011081

Built
1974
51 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
134 ft
3 main spans
Daily traffic
14,040
2023 count
Owner
State
State Highway Agency

About this bridge

I - 20/59 W Ramp over 50th ST North is a steel stringer/multi-beam or girder carrying I - 20/59 W Ramp over 50th ST North in Jefferson County, Alabama. It was built in 1974, so it is 51 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 14,040 vehicles a day, roughly 11% of them trucks, projected to reach 17,370 by 2043. The structure is 134 ft (40.8 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI - 20/59 W Ramp
Crosses50th ST North
LocationI 59 * 50 TH ST
RouteInterstate 20
CountyJefferson County
StateAlabama
Coordinates33.54556, -86.76167
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating97 US tons
Inventory rating58.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span69 ft (21 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,040 (2023)
Projected traffic17,370 by 2043
Trucks11%
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$989,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 20/59 W Ramp over 50th ST North built?

It was built in 1974, making it 51 years old in 2025.

What condition is I - 20/59 W Ramp over 50th ST North 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 November 2023.

How much traffic does I - 20/59 W Ramp over 50th ST North carry?

About 14,040 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I - 20/59 W Ramp over 50th ST North?

The structure is 134 ft (40.8 m) long with a longest span of 69 ft (21 m) and a deck 27 ft wide.

Who owns I - 20/59 W Ramp over 50th ST North?

It is owned by the State Highway Agency.