US Bridges

I-85 over S Jackson ST

Poor

Montgomery County, Alabama · 1.5 MI N of I65 · Structure no. 014469

Built
1969
56 years old, rebuilt 1988
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
169 ft
3 main spans
Daily traffic
104,310
2013 count
Owner
State
State Highway Agency

About this bridge

I-85 over S Jackson ST is a concrete continuous tee beam carrying I-85 over S Jackson ST in Montgomery County, Alabama. It was built in 1969 and reconstructed in 1988, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 104,310 vehicles a day, roughly 10% of them trucks, projected to reach 137,476 by 2033. The structure is 169 ft (51.5 m) long and 159 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-85
CrossesS Jackson ST
Location1.5 MI N of I65
RouteInterstate 85
CountyMontgomery County
StateAlabama
Coordinates32.36799, -86.29626
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.4 US tons
Inventory rating33.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span64 ft (19.5 m)
Deck width159 ft (48.6 m)
Roadway width153 ft (46.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic104,310 (2013)
Projected traffic137,476 by 2033
Trucks10%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$7.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 over S Jackson ST built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1988.

What condition is I-85 over S Jackson ST in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does I-85 over S Jackson ST carry?

About 104,310 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is I-85 over S Jackson ST?

The structure is 169 ft (51.5 m) long with a longest span of 64 ft (19.5 m) and a deck 159 ft wide.

Who owns I-85 over S Jackson ST?

It is owned by the State Highway Agency.