US Bridges

_I20W to 25th Stn over _US31 RR 28th Stn

Good

Jefferson County, Alabama · _I20 · Structure no. 021220

Built
2019
6 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,515 ft
13 main spans
Daily traffic
15,477
2023 count
Owner
State
State Highway Agency

About this bridge

_I20W to 25th Stn over _US31 RR 28th Stn is a prestressed concrete stringer/multi-beam or girder carrying _I20W to 25th Stn over _US31 RR 28th Stn 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,477 vehicles a day, roughly 8% of them trucks, projected to reach 19,148 by 2043. The structure is 1,515 ft (461.8 m) long and 28 ft wide.

Location

Open in Google Maps
Carries_I20W to 25th Stn
Crosses_US31 RR 28th Stn
Location_I20
RouteInterstate 20
CountyJefferson County
StateAlabama
Coordinates33.52908, -86.80574
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13
Design loadHL 93
Structure length1,515 ft (461.8 m)
Longest span165 ft (50.3 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15,477 (2023)
Projected traffic19,148 by 2043
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
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 proposedNone recorded
Estimated improvement cost$9.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was _I20W to 25th Stn over _US31 RR 28th Stn built?

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

What condition is _I20W to 25th Stn over _US31 RR 28th Stn 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 March 2023.

How much traffic does _I20W to 25th Stn over _US31 RR 28th Stn carry?

About 15,477 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is _I20W to 25th Stn over _US31 RR 28th Stn?

The structure is 1,515 ft (461.8 m) long with a longest span of 165 ft (50.3 m) and a deck 28 ft wide.

Who owns _I20W to 25th Stn over _US31 RR 28th Stn?

It is owned by the State Highway Agency.