US Bridges

Shell Belt RD over Bayou Coteau

Fair

Mobile County, Alabama · 0.7 MI S Al 188 · Structure no. 018597

Built
2003
22 years old
Condition
Fair
inspected August 2023
Type
Channel Beam
Concrete
Length
74 ft
2 main spans
Daily traffic
2,318
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Shell Belt RD over Bayou Coteau is a concrete channel beam carrying Shell Belt RD over Bayou Coteau in Mobile County, Alabama. It was built in 2003, so it is 22 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 2,318 vehicles a day, roughly 5% of them trucks, projected to reach 3,130 by 2043. The structure is 74 ft (22.6 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesShell Belt RD
CrossesBayou Coteau
Location0.7 MI S Al 188
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.39853, -88.25724
Functional classRural 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.6 US tons
Inventory rating60.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,318 (2023)
Projected traffic3,130 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$695,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Shell Belt RD over Bayou Coteau built?

It was built in 2003, making it 22 years old in 2025.

What condition is Shell Belt RD over Bayou Coteau 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 2023.

How much traffic does Shell Belt RD over Bayou Coteau carry?

About 2,318 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Shell Belt RD over Bayou Coteau?

The structure is 74 ft (22.6 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Shell Belt RD over Bayou Coteau?

It is owned by the City or Municipal Highway Agency.