US Bridges

I-65 SB over Gunnison Creek

Fair

Mobile County, Alabama · 0.4 MI N E US 43 · Structure no. 010202

Built
1970
55 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
443 ft
7 main spans
Daily traffic
12,123
2022 count
Owner
State
State Highway Agency

About this bridge

I-65 SB over Gunnison Creek is a steel stringer/multi-beam or girder carrying I-65 SB over Gunnison Creek in Mobile County, Alabama. It was built in 1970, so it is 55 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 12,123 vehicles a day, roughly 30% of them trucks, projected to reach 18,184 by 2042. The structure is 443 ft (134.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-65 SB
CrossesGunnison Creek
Location0.4 MI N E US 43
RouteInterstate 65
CountyMobile County
StateAlabama
Coordinates30.88012, -88.03992
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
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.7 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length443 ft (134.9 m)
Longest span80 ft (24.4 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,123 (2022)
Projected traffic18,184 by 2042
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost$4.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-65 SB over Gunnison Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-65 SB over Gunnison Creek 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 June 2024.

How much traffic does I-65 SB over Gunnison Creek carry?

About 12,123 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is I-65 SB over Gunnison Creek?

The structure is 443 ft (134.9 m) long with a longest span of 80 ft (24.4 m) and a deck 43 ft wide.

Who owns I-65 SB over Gunnison Creek?

It is owned by the State Highway Agency.