US Bridges

I - 59 South over Norfolk Southern

Fair

St. Clair County, Alabama · I59 * Ags RR · Structure no. 014733

Built
1961
64 years old, rebuilt 1989
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
264 ft
3 main spans
Daily traffic
13,987
2024 count
Owner
State
State Highway Agency

About this bridge

I - 59 South over Norfolk Southern is a steel continuous stringer/multi-beam or girder carrying I - 59 South over Norfolk Southern in St. Clair County, Alabama. It was built in 1961 and reconstructed in 1989, so it is 64 years old, older 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 13,987 vehicles a day, roughly 26% of them trucks, projected to reach 27,284 by 2044. The structure is 264 ft (80.5 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI - 59 South
CrossesNorfolk Southern
LocationI59 * Ags RR
RouteInterstate 59
StateAlabama
Coordinates33.7252, -86.5042
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span100 ft (30.5 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,987 (2024)
Projected traffic27,284 by 2044
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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$3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 59 South over Norfolk Southern built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1989.

What condition is I - 59 South over Norfolk Southern 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 June 2024.

How much traffic does I - 59 South over Norfolk Southern carry?

About 13,987 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is I - 59 South over Norfolk Southern?

The structure is 264 ft (80.5 m) long with a longest span of 100 ft (30.5 m) and a deck 44 ft wide.

Who owns I - 59 South over Norfolk Southern?

It is owned by the State Highway Agency.