US Bridges

US 45 over Three Mile Creek

Fair

Mobile County, Alabama · 0.8 MI N JCT US 98 · Structure no. 015433

Built
1991
34 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
246 ft
6 main spans
Daily traffic
11,229
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Three Mile Creek is a prestressed concrete box beam or girders - multiple carrying US 45 over Three Mile Creek in Mobile County, Alabama. It was built in 1991, so it is 34 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 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 11,229 vehicles a day, roughly 2% of them trucks, projected to reach 16,844 by 2043. The structure is 246 ft (75 m) long and 76 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesUS 45
CrossesThree Mile Creek
Location0.8 MI N JCT US 98
RouteU.S. Route 45
CountyMobile County
StateAlabama
Coordinates30.70047, -88.07719
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating70 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length246 ft (75 m)
Longest span41 ft (12.5 m)
Deck width76 ft (23.2 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,229 (2023)
Projected traffic16,844 by 2043
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
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 proposedNone recorded
Estimated improvement cost$4.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 45 over Three Mile Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is US 45 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 August 2024.

How much traffic does US 45 over Three Mile Creek carry?

About 11,229 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 45 over Three Mile Creek?

The structure is 246 ft (75 m) long with a longest span of 41 ft (12.5 m) and a deck 76 ft wide.

Who owns US 45 over Three Mile Creek?

It is owned by the State Highway Agency.