US Bridges

US 98 WB over Three Mile Creek

Fair

Mobile County, Alabama · 0.1 MI W I-65 · Structure no. 011820

Built
1978
47 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
170 ft
5 main spans
Daily traffic
18,275
2023 count
Owner
State
State Highway Agency

About this bridge

US 98 WB over Three Mile Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 98 WB over Three Mile Creek in Mobile County, Alabama. It was built in 1978, so it is 47 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 18,275 vehicles a day, roughly 5% of them trucks, projected to reach 27,412 by 2043. The structure is 170 ft (51.8 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 98 WB
CrossesThree Mile Creek
Location0.1 MI W I-65
RouteU.S. Route 98
StateAlabama
Coordinates30.70813, -88.12393
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.8 US tons
Inventory rating51.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span34 ft (10.4 m)
Deck width50 ft (15.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,275 (2023)
Projected traffic27,412 by 2043
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 98 WB over Three Mile Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 98 WB 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 98 WB over Three Mile Creek carry?

About 18,275 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 98 WB over Three Mile Creek?

The structure is 170 ft (51.8 m) long with a longest span of 34 ft (10.4 m) and a deck 50 ft wide.

Who owns US 98 WB over Three Mile Creek?

It is owned by the State Highway Agency.