US Bridges

I-59/I-20 EB over 15th ST N to US 31

Good

Jefferson County, Alabama · Central Business District · Structure no. 021226

Built
2019
6 years old
Condition
Good
inspected April 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
6,564 ft
42 main spans
Daily traffic
67,372
2021 count
Owner
State
State Highway Agency

About this bridge

I-59/I-20 EB over 15th ST N to US 31 is a prestressed concrete continuous segmental box girder carrying I-59/I-20 EB over 15th ST N to US 31 in Jefferson County, Alabama. It was built in 2019, so it is 6 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 67,372 vehicles a day, roughly 10% of them trucks, projected to reach 101,598 by 2041. The structure is 6,564 ft (2,000.7 m) long and 71 ft wide.

Location

Open in Google Maps
CarriesI-59/I-20 EB
Crosses15th ST N to US 31
LocationCentral Business District
RouteInterstate 20
CountyJefferson County
StateAlabama
Coordinates33.51998, -86.81926
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckOther
Main spans42
Design loadHL 93
Structure length6,564 ft (2,000.7 m)
Longest span165 ft (50.3 m)
Deck width71 ft (21.5 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deck27 ft (8.4 m)

Traffic and service

Average daily traffic67,372 (2021)
Projected traffic101,598 by 2041
Trucks10%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$105.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-59/I-20 EB over 15th ST N to US 31 built?

It was built in 2019, making it 6 years old in 2025.

What condition is I-59/I-20 EB over 15th ST N to US 31 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does I-59/I-20 EB over 15th ST N to US 31 carry?

About 67,372 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is I-59/I-20 EB over 15th ST N to US 31?

The structure is 6,564 ft (2,000.7 m) long with a longest span of 165 ft (50.3 m) and a deck 71 ft wide.

Who owns I-59/I-20 EB over 15th ST N to US 31?

It is owned by the State Highway Agency.