US Bridges

I-20/59 over Branch

Fair

Greene County, Alabama · 4.7 MI S of Knoxville · Structure no. 008551

Built
1965
60 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
50 ft
4 main spans
Daily traffic
26,430
2020 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 Greene County, Alabama. It was built in 1965, so it is 60 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 26,430 vehicles a day, roughly 39% of them trucks, projected to reach 28,258 by 2041. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesI-20/59
CrossesBranch
Location4.7 MI S of Knoxville
RouteInterstate 59
CountyGreene County
StateAlabama
Coordinates32.94173, -87.84962
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.8 US tons
Inventory rating56.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 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 traffic26,430 (2020)
Projected traffic28,258 by 2041
Trucks39%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-20/59 over Branch built?

It was built in 1965, making it 60 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 April 2023.

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

About 26,430 vehicles per day (2020 count), of which roughly 39% are trucks.

How long is I-20/59 over Branch?

The structure is 50 ft (15.2 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.