US Bridges

I-10 WB * Ramp 9 over Bayou Mccullough

Fair

Mobile County, Alabama · 0.1 MI W Navco Interch · Structure no. 008140

Built
1964
61 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
42,976
2022 count
Owner
State
State Highway Agency

About this bridge

I-10 WB * Ramp 9 over Bayou Mccullough is a concrete culvert carrying I-10 WB * Ramp 9 over Bayou Mccullough in Mobile County, Alabama. It was built in 1964, so it is 61 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 42,976 vehicles a day, roughly 12% of them trucks, projected to reach 64,464 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-10 WB * Ramp 9
CrossesBayou Mccullough
Location0.1 MI W Navco Interch
RouteInterstate 10
CountyMobile County
StateAlabama
Coordinates30.62702, -88.12103
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,976 (2022)
Projected traffic64,464 by 2042
Trucks12%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-10 WB * Ramp 9 over Bayou Mccullough built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-10 WB * Ramp 9 over Bayou Mccullough 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 February 2024.

How much traffic does I-10 WB * Ramp 9 over Bayou Mccullough carry?

About 42,976 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I-10 WB * Ramp 9 over Bayou Mccullough?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I-10 WB * Ramp 9 over Bayou Mccullough?

It is owned by the State Highway Agency.