US Bridges

US 90 WB over Wragg Swamp Canal

Fair

Mobile County, Alabama · 0.5 MI W I-65 · Structure no. 006578

Built
1959
66 years old, rebuilt 2003
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
238 ft
6 main spans
Daily traffic
16,868
2023 count
Owner
State
State Highway Agency

About this bridge

US 90 WB over Wragg Swamp Canal is a concrete tee beam carrying US 90 WB over Wragg Swamp Canal in Mobile County, Alabama. It was built in 1959 and reconstructed in 2003, so it is 66 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 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 16,868 vehicles a day, roughly 2% of them trucks, projected to reach 25,302 by 2043. The structure is 238 ft (72.5 m) long and 52 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesUS 90 WB
CrossesWragg Swamp Canal
Location0.5 MI W I-65
RouteU.S. Route 90
CountyMobile County
StateAlabama
Coordinates30.65004, -88.12606
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.8 US tons
Inventory rating29.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span34 ft (10.4 m)
Deck width52 ft (15.8 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,868 (2023)
Projected traffic25,302 by 2043
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 90 WB over Wragg Swamp Canal built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2003.

What condition is US 90 WB over Wragg Swamp Canal 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 July 2024.

How much traffic does US 90 WB over Wragg Swamp Canal carry?

About 16,868 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 90 WB over Wragg Swamp Canal?

The structure is 238 ft (72.5 m) long with a longest span of 34 ft (10.4 m) and a deck 52 ft wide.

Who owns US 90 WB over Wragg Swamp Canal?

It is owned by the State Highway Agency.