US Bridges

I-22 over AL-129

Fair

Marion County, Alabama · 12.98 MI E of US-43 · Structure no. 018447

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
250 ft
3 main spans
Daily traffic
12,834
2020 count
Owner
State
State Highway Agency

About this bridge

I-22 over AL-129 is a prestressed concrete stringer/multi-beam or girder carrying I-22 over AL-129 in Marion County, Alabama. It was built in 1997, so it is 28 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 12,834 vehicles a day, roughly 30% of them trucks, projected to reach 15,000 by 2040. The structure is 250 ft (76.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-22
CrossesAL-129
Location12.98 MI E of US-43
RouteInterstate 22
CountyMarion County
StateAlabama
Coordinates33.99, -87.77742
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,834 (2020)
Projected traffic15,000 by 2040
Trucks30%
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 proposedNone recorded
Estimated improvement cost$2.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-22 over AL-129 built?

It was built in 1997, making it 28 years old in 2025.

What condition is I-22 over AL-129 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 April 2024.

How much traffic does I-22 over AL-129 carry?

About 12,834 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is I-22 over AL-129?

The structure is 250 ft (76.2 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns I-22 over AL-129?

It is owned by the State Highway Agency.