US Bridges

I65 over Mortar Creek

Fair

Autauga County, Alabama · 8.5 MI N of US 31 · Structure no. 006778

Built
1960
65 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
90 ft
5 main spans
Daily traffic
34,190
2013 count
Owner
State
State Highway Agency

About this bridge

I65 over Mortar Creek is a concrete continuous culvert carrying I65 over Mortar Creek in Autauga County, Alabama. It was built in 1960, so it is 65 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 34,190 vehicles a day, roughly 23% of them trucks, projected to reach 43,316 by 2033. The structure is 90 ft (27.4 m) long. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesI65
CrossesMortar Creek
Location8.5 MI N of US 31
RouteInterstate 65
CountyAutauga County
StateAlabama
Coordinates32.66359, -86.50322
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadH 20
Structure length90 ft (27.4 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 traffic34,190 (2013)
Projected traffic43,316 by 2033
Trucks23%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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$4.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I65 over Mortar Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is I65 over Mortar Creek 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 December 2023.

How much traffic does I65 over Mortar Creek carry?

About 34,190 vehicles per day (2013 count), of which roughly 23% are trucks.

How long is I65 over Mortar Creek?

The structure is 90 ft (27.4 m) long with a longest span of 12 ft (3.7 m).

Who owns I65 over Mortar Creek?

It is owned by the State Highway Agency.