US Bridges

Western Bypass over Black Warrior River

Fair

Tuscaloosa County, Alabama · Northport-Tuscaloosa · Structure no. 017328

Built
1998
27 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
961 ft
3 main spans
Daily traffic
8,104
2024 count
Owner
Private
Private (other than railroad)

About this bridge

Western Bypass over Black Warrior River is a prestressed concrete continuous stringer/multi-beam or girder carrying Western Bypass over Black Warrior River in Tuscaloosa County, Alabama. It was built in 1998, so it is 27 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 8,104 vehicles a day, roughly 4% of them trucks, projected to reach 12,156 by 2044. The structure is 961 ft (292.9 m) long and 63 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesWestern Bypass
CrossesBlack Warrior River
LocationNorthport-Tuscaloosa
StateAlabama
Coordinates33.19692, -87.62645
Functional classUrban Local

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating31.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 20
Structure length961 ft (292.9 m)
Longest span250 ft (76.2 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,104 (2024)
Projected traffic12,156 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollToll bridge
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$13.9 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Western Bypass over Black Warrior River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Western Bypass over Black Warrior River 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 October 2024.

How much traffic does Western Bypass over Black Warrior River carry?

About 8,104 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Western Bypass over Black Warrior River?

The structure is 961 ft (292.9 m) long with a longest span of 250 ft (76.2 m) and a deck 63 ft wide.

Who owns Western Bypass over Black Warrior River?

It is owned by the Private (other than railroad).