US Bridges

I - 59 North over 4 TH Ave So

Fair

Jefferson County, Alabama · I 59 * 4 TH Ave So · Structure no. 011336

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
210 ft
3 main spans
Daily traffic
34,590
2023 count
Owner
State
State Highway Agency

About this bridge

I - 59 North over 4 TH Ave So is a steel stringer/multi-beam or girder carrying I - 59 North over 4 TH Ave So 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 34,590 vehicles a day, roughly 10% of them trucks, projected to reach 42,795 by 2043. The structure is 210 ft (64 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI - 59 North
Crosses4 TH Ave So
LocationI 59 * 4 TH Ave So
RouteInterstate 59
CountyJefferson County
StateAlabama
Coordinates33.58139, -86.7075
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.8 US tons
Inventory rating35.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span111 ft (33.8 m)
Deck width42 ft (12.8 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,590 (2023)
Projected traffic42,795 by 2043
Trucks10%
Lanes on structure2
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$2.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 59 North over 4 TH Ave So built?

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

What condition is I - 59 North over 4 TH Ave So 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 December 2023.

How much traffic does I - 59 North over 4 TH Ave So carry?

About 34,590 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I - 59 North over 4 TH Ave So?

The structure is 210 ft (64 m) long with a longest span of 111 ft (33.8 m) and a deck 42 ft wide.

Who owns I - 59 North over 4 TH Ave So?

It is owned by the State Highway Agency.