US Bridges

I - 20/59 over Branch

Fair

Jefferson County, Alabama · Ave I * 35 TH ST Ex 119 B · Structure no. 008970

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
81,340
2022 count
Owner
State
State Highway Agency

About this bridge

I - 20/59 over Branch is a concrete culvert carrying I - 20/59 over Branch in Jefferson County, Alabama. It was built in 1966, so it is 59 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 81,340 vehicles a day, roughly 11% of them trucks, projected to reach 100,635 by 2042. The structure is 25 ft (7.6 m) long.

CarriesI - 20/59
CrossesBranch
LocationAve I * 35 TH ST Ex 119 B
RouteInterstate 20
StateAlabama
Coordinates33.49814, -86.90108
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum 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 span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81,340 (2022)
Projected traffic100,635 by 2042
Trucks11%
Lanes on structure6
Traffic directionTwo-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$6.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I - 20/59 over Branch built?

It was built in 1966, making it 59 years old in 2025.

What condition is I - 20/59 over Branch 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 March 2023.

How much traffic does I - 20/59 over Branch carry?

About 81,340 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is I - 20/59 over Branch?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns I - 20/59 over Branch?

It is owned by the State Highway Agency.