US Bridges

I - 459 South Ramp over Stream

Fair

Jefferson County, Alabama · Ramp to I - 59 No · Structure no. 011921

Built
1978
47 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
4,700
2024 count
Owner
State
State Highway Agency

About this bridge

I - 459 South Ramp over Stream is a concrete culvert carrying I - 459 South Ramp over Stream in Jefferson County, Alabama. It was built in 1978, so it is 47 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 4,700 vehicles a day, roughly 22% of them trucks, projected to reach 5,942 by 2044. The structure is 25 ft (7.6 m) long.

Location

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CarriesI - 459 South Ramp
CrossesStream
LocationRamp to I - 59 No
RouteInterstate 459
CountyJefferson County
StateAlabama
Coordinates33.3436, -87.02439
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2024)
Projected traffic5,942 by 2044
Trucks22%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I - 459 South Ramp over Stream built?

It was built in 1978, making it 47 years old in 2025.

What condition is I - 459 South Ramp over Stream 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 January 2024.

How much traffic does I - 459 South Ramp over Stream carry?

About 4,700 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is I - 459 South Ramp over Stream?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m).

Who owns I - 459 South Ramp over Stream?

It is owned by the State Highway Agency.