US Bridges

I - 59 North over 75th ST No

Fair

Jefferson County, Alabama · I59 * 75th ST No · Structure no. 011558

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
138 ft
3 main spans
Daily traffic
33,120
2023 count
Owner
State
State Highway Agency

About this bridge

I - 59 North over 75th ST No is a steel continuous stringer/multi-beam or girder carrying I - 59 North over 75th ST No in Jefferson County, Alabama. It was built in 1976, so it is 49 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 33,120 vehicles a day, roughly 9% of them trucks, projected to reach 40,976 by 2043. The structure is 138 ft (42.1 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI - 59 North
Crosses75th ST No
LocationI59 * 75th ST No
RouteInterstate 59
CountyJefferson County
StateAlabama
Coordinates33.56167, -86.735
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 inspectionOctober 2023
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 rating60.4 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length138 ft (42.1 m)
Longest span56 ft (17.1 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,120 (2023)
Projected traffic40,976 by 2043
Trucks9%
Lanes on structure4
Traffic directionTwo-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$2.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 59 North over 75th ST No built?

It was built in 1976, making it 49 years old in 2025.

What condition is I - 59 North over 75th ST No 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 October 2023.

How much traffic does I - 59 North over 75th ST No carry?

About 33,120 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I - 59 North over 75th ST No?

The structure is 138 ft (42.1 m) long with a longest span of 56 ft (17.1 m) and a deck 66 ft wide.

Who owns I - 59 North over 75th ST No?

It is owned by the State Highway Agency.