US Bridges

US 90 to I10 WB over I-10EB * WB * WB on Ramp

Fair

Mobile County, Alabama · East Tunnel Interchange · Structure no. 010854

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,156 ft
16 main spans
Daily traffic
4,851
2023 count
Owner
State
State Highway Agency

About this bridge

US 90 to I10 WB over I-10EB * WB * WB on Ramp is a prestressed concrete stringer/multi-beam or girder carrying US 90 to I10 WB over I-10EB * WB * WB on Ramp in Mobile County, Alabama. It was built in 1973, so it is 52 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 4,851 vehicles a day, roughly 9% of them trucks, projected to reach 7,277 by 2043. The structure is 1,156 ft (352.3 m) long and 25 ft wide.

CarriesUS 90 to I10 WB
CrossesI-10EB * WB * WB on Ramp
LocationEast Tunnel Interchange
RouteInterstate 10
StateAlabama
Coordinates30.69229, -88.02728
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57.8 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans16 (+17 approach)
Design loadHS 20
Structure length1,156 ft (352.3 m)
Longest span54 ft (16.5 m)
Deck width25 ft (7.7 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic4,851 (2023)
Projected traffic7,277 by 2043
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesWaterway
Detour if closed—
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$6.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 90 to I10 WB over I-10EB * WB * WB on Ramp built?

It was built in 1973, making it 52 years old in 2025.

What condition is US 90 to I10 WB over I-10EB * WB * WB on Ramp 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 US 90 to I10 WB over I-10EB * WB * WB on Ramp carry?

About 4,851 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 90 to I10 WB over I-10EB * WB * WB on Ramp?

The structure is 1,156 ft (352.3 m) long with a longest span of 54 ft (16.5 m) and a deck 25 ft wide.

Who owns US 90 to I10 WB over I-10EB * WB * WB on Ramp?

It is owned by the State Highway Agency.