US Bridges

I59 over Branch

Fair

DeKalb County, Alabama · JCT I59 * SR35 · Structure no. 006440

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
48 ft
4 main spans
Daily traffic
22,322
2022 count
Owner
State
State Highway Agency

About this bridge

I59 over Branch is a concrete culvert carrying I59 over Branch in DeKalb County, Alabama. It was built in 1959, so it is 66 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 22,322 vehicles a day, roughly 28% of them trucks, projected to reach 31,251 by 2042. The structure is 48 ft (14.6 m) long.

CarriesI59
CrossesBranch
LocationJCT I59 * SR35
RouteInterstate 59
StateAlabama
Coordinates34.43794, -85.74875
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 inspectionApril 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 spans4
Design loadHS 20
Structure length48 ft (14.6 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 traffic22,322 (2022)
Projected traffic31,251 by 2042
Trucks28%
Lanes on structure4
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$4.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I59 over Branch built?

It was built in 1959, making it 66 years old in 2025.

What condition is I59 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 2024.

How much traffic does I59 over Branch carry?

About 22,322 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is I59 over Branch?

The structure is 48 ft (14.6 m) long with a longest span of 10 ft (3 m).

Who owns I59 over Branch?

It is owned by the State Highway Agency.