US Bridges

SR 188 over Coden Bayou

Good

Mobile County, Alabama · 4.5 MI W CO RD 59 · Structure no. 015973

Built
1994
31 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
194 ft
5 main spans
Daily traffic
3,709
2023 count
Owner
State
State Highway Agency

About this bridge

SR 188 over Coden Bayou is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 188 over Coden Bayou in Mobile County, Alabama. It was built in 1994, so it is 31 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 3,709 vehicles a day, roughly 6% of them trucks, projected to reach 5,564 by 2043. The structure is 194 ft (59.1 m) long and 72 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 188
CrossesCoden Bayou
Location4.5 MI W CO RD 59
RouteState Highway 188
StateAlabama
Coordinates30.38283, -88.23806
Functional classRural Major Collector

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.9 US tons
Inventory rating32.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span39 ft (11.9 m)
Deck width72 ft (22 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,709 (2023)
Projected traffic5,564 by 2043
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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$3.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 188 over Coden Bayou built?

It was built in 1994, making it 31 years old in 2025.

What condition is SR 188 over Coden Bayou 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 September 2024.

How much traffic does SR 188 over Coden Bayou carry?

About 3,709 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 188 over Coden Bayou?

The structure is 194 ft (59.1 m) long with a longest span of 39 ft (11.9 m) and a deck 72 ft wide.

Who owns SR 188 over Coden Bayou?

It is owned by the State Highway Agency.