US Bridges

I-165 NB over Multiple Streets Streams

Fair

Mobile County, Alabama · Dn Twn Mob to Chickasaw · Structure no. 015508

Built
1994
31 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
24,513 ft
122 main spans
Daily traffic
21,946
2021 count
Owner
State
State Highway Agency

About this bridge

I-165 NB over Multiple Streets Streams is a prestressed concrete continuous stringer/multi-beam or girder carrying I-165 NB over Multiple Streets Streams 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 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 21,946 vehicles a day, roughly 9% of them trucks, projected to reach 32,919 by 2041. The structure is 24,513 ft (7,471.6 m) long and 59 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesI-165 NB
CrossesMultiple Streets Streams
LocationDn Twn Mob to Chickasaw
RouteInterstate 165
StateAlabama
Coordinates30.7522, -88.09215
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
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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans122 (+193 approach)
Design loadHS 20
Structure length24,513 ft (7,471.6 m)
Longest span196 ft (59.7 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,946 (2021)
Projected traffic32,919 by 2041
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed8.7 mi (14 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$326.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-165 NB over Multiple Streets Streams built?

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

What condition is I-165 NB over Multiple Streets Streams 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 2025.

How much traffic does I-165 NB over Multiple Streets Streams carry?

About 21,946 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I-165 NB over Multiple Streets Streams?

The structure is 24,513 ft (7,471.6 m) long with a longest span of 196 ft (59.7 m) and a deck 59 ft wide.

Who owns I-165 NB over Multiple Streets Streams?

It is owned by the State Highway Agency.