US Bridges

US 43 over Three Mile Creek

Fair

Mobile County, Alabama · 2.6 MI N Bankhead Tunnel · Structure no. 016182

Built
1995
30 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
320 ft
4 main spans
Daily traffic
1,792
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

US 43 over Three Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying US 43 over Three Mile Creek in Mobile County, Alabama. It was built in 1995, so it is 30 years old, younger 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 1,792 vehicles a day, roughly 4% of them trucks, projected to reach 2,641 by 2044. The structure is 320 ft (97.5 m) long and 67 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesUS 43
CrossesThree Mile Creek
Location2.6 MI N Bankhead Tunnel
RouteCity Street 0
StateAlabama
Coordinates30.72377, -88.05877
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.2 US tons
Inventory rating51.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span80 ft (24.4 m)
Deck width67 ft (20.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,792 (2024)
Projected traffic2,641 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$5.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 43 over Three Mile Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 43 over Three Mile 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 February 2024.

How much traffic does US 43 over Three Mile Creek carry?

About 1,792 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is US 43 over Three Mile Creek?

The structure is 320 ft (97.5 m) long with a longest span of 80 ft (24.4 m) and a deck 67 ft wide.

Who owns US 43 over Three Mile Creek?

It is owned by the City or Municipal Highway Agency.