US Bridges

I - 20/59 West over CSX R.R.

Fair

Jefferson County, Alabama · I 59 * CSX RR · Structure no. 012105

Built
1979
46 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
710 ft
1 main span
Daily traffic
23,555
2024 count
Owner
State
State Highway Agency

About this bridge

I - 20/59 West over CSX R.R. is a steel stringer/multi-beam or girder carrying I - 20/59 West over CSX R.R. in Jefferson County, Alabama. It was built in 1979, so it is 46 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 23,555 vehicles a day, roughly 17% of them trucks, projected to reach 29,142 by 2044. The structure is 710 ft (216.4 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI - 20/59 West
CrossesCSX R.R.
LocationI 59 * CSX RR
RouteInterstate 20
CountyJefferson County
StateAlabama
Coordinates33.4124, -86.9683
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+8 approach)
Design loadHS 20
Structure length710 ft (216.4 m)
Longest span98 ft (29.9 m)
Deck width55 ft (16.9 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,555 (2024)
Projected traffic29,142 by 2044
Trucks17%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.7 mi (6 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$9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 20/59 West over CSX R.R. built?

It was built in 1979, making it 46 years old in 2025.

What condition is I - 20/59 West over CSX R.R. 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 May 2024.

How much traffic does I - 20/59 West over CSX R.R. carry?

About 23,555 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is I - 20/59 West over CSX R.R.?

The structure is 710 ft (216.4 m) long with a longest span of 98 ft (29.9 m) and a deck 55 ft wide.

Who owns I - 20/59 West over CSX R.R.?

It is owned by the State Highway Agency.