US Bridges

Center ST over I - 20/59

Fair

Jefferson County, Alabama · I 59 * Center ST · Structure no. 009869

Built
1969
56 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
334 ft
5 main spans
Daily traffic
4,000
2024 count
Owner
State
State Highway Agency

About this bridge

Center ST over I - 20/59 is a concrete continuous tee beam carrying Center ST over I - 20/59 in Jefferson County, Alabama. It was built in 1969, so it is 56 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 9,500 by 2044. The structure is 334 ft (101.8 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCenter ST
CrossesI - 20/59
LocationI 59 * Center ST
RouteCity Street 0
StateAlabama
Coordinates33.5208, -86.8361
Functional classUrban Local

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.5 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length334 ft (101.8 m)
Longest span82 ft (25 m)
Deck width50 ft (15.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2024)
Projected traffic9,500 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$4.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Center ST over I - 20/59 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Center ST over I - 20/59 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 Center ST over I - 20/59 carry?

About 4,000 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Center ST over I - 20/59?

The structure is 334 ft (101.8 m) long with a longest span of 82 ft (25 m) and a deck 50 ft wide.

Who owns Center ST over I - 20/59?

It is owned by the State Highway Agency.