US Bridges

Shell Belt Road S over Tidal Stream

Good

Mobile County, Alabama · 2.8 MI SW HWY 188 · Structure no. 017754

Built
1999
26 years old
Condition
Good
inspected April 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
283
2024 count
Owner
County
County Highway Agency

About this bridge

Shell Belt Road S over Tidal Stream is a concrete channel beam carrying Shell Belt Road S over Tidal Stream in Mobile County, Alabama. It was built in 1999, so it is 26 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 283 vehicles a day, roughly 1% of them trucks, projected to reach 421 by 2044. The structure is 34 ft (10.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesShell Belt Road S
CrossesTidal Stream
Location2.8 MI SW HWY 188
RouteCounty Highway 0
CountyMobile County
StateAlabama
Coordinates30.37963, -88.25185
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic283 (2024)
Projected traffic421 by 2044
Trucks1%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$361,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Shell Belt Road S over Tidal Stream built?

It was built in 1999, making it 26 years old in 2025.

What condition is Shell Belt Road S over Tidal Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Shell Belt Road S over Tidal Stream carry?

About 283 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Shell Belt Road S over Tidal Stream?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns Shell Belt Road S over Tidal Stream?

It is owned by the County Highway Agency.