US Bridges

SR 188 over I-10

Fair

Mobile County, Alabama · 4.1 MI E Miss State Line · Structure no. 008448

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
283 ft
4 main spans
Daily traffic
10,994
2023 count
Owner
State
State Highway Agency

About this bridge

SR 188 over I-10 is a concrete continuous tee beam carrying SR 188 over I-10 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 10,994 vehicles a day, roughly 4% of them trucks, projected to reach 16,491 by 2043. The structure is 283 ft (86.3 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesSR 188
CrossesI-10
Location4.1 MI E Miss State Line
RouteState Highway 188
CountyMobile County
StateAlabama
Coordinates30.4967, -88.33543
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.6 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length283 ft (86.3 m)
Longest span78 ft (23.8 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,994 (2023)
Projected traffic16,491 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 188 over I-10 built?

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

What condition is SR 188 over I-10 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 SR 188 over I-10 carry?

About 10,994 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 188 over I-10?

The structure is 283 ft (86.3 m) long with a longest span of 78 ft (23.8 m) and a deck 29 ft wide.

Who owns SR 188 over I-10?

It is owned by the State Highway Agency.