US Bridges

U.S.31 over I-65

Fair

Autauga County, Alabama · 6.0 MI N. of Prattville · Structure no. 008660

Built
1965
60 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
420 ft
5 main spans
Daily traffic
7,050
2013 count
Owner
State
State Highway Agency

About this bridge

U.S.31 over I-65 is a steel continuous stringer/multi-beam or girder carrying U.S.31 over I-65 in Autauga 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 5 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 7,050 vehicles a day, roughly 11% of them trucks, projected to reach 9,056 by 2033. The structure is 420 ft (128 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesU.S.31
CrossesI-65
Location6.0 MI N. of Prattville
RouteU.S. Route 31
CountyAutauga County
StateAlabama
Coordinates32.549, -86.45773
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.8 US tons
Inventory rating26.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length420 ft (128 m)
Longest span105 ft (32 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,050 (2013)
Projected traffic9,056 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S.31 over I-65 built?

It was built in 1965, making it 60 years old in 2025.

What condition is U.S.31 over I-65 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 July 2023.

How much traffic does U.S.31 over I-65 carry?

About 7,050 vehicles per day (2013 count), of which roughly 11% are trucks.

How long is U.S.31 over I-65?

The structure is 420 ft (128 m) long with a longest span of 105 ft (32 m) and a deck 31 ft wide.

Who owns U.S.31 over I-65?

It is owned by the State Highway Agency.