US Bridges

Hobbs Island RD over Flint River

FairPosted for load

Madison County, Alabama · 4 MI W JCT HWY 431 S · Structure no. 003888

Built
1950
75 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,018 ft
3 main spans
Daily traffic
3,500
2000 count
Owner
County
County Highway Agency

About this bridge

Hobbs Island RD over Flint River is a steel continuous stringer/multi-beam or girder carrying Hobbs Island RD over Flint River in Madison County, Alabama. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 3,500 vehicles a day, roughly 1% of them trucks, projected to reach 4,500 by 2041. The structure is 1,018 ft (310.3 m) long and 29 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesHobbs Island RD
CrossesFlint River
Location4 MI W JCT HWY 431 S
RouteCounty Highway 155
StateAlabama
Coordinates34.53972, -86.49186
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.3 US tons
Inventory rating22.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+24 approach)
Design loadH 15
Structure length1,018 ft (310.3 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2000)
Projected traffic4,500 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 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$6.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hobbs Island RD over Flint River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Hobbs Island RD over Flint River 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 September 2023.

How much traffic does Hobbs Island RD over Flint River carry?

About 3,500 vehicles per day (2000 count), of which roughly 1% are trucks.

How long is Hobbs Island RD over Flint River?

The structure is 1,018 ft (310.3 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Hobbs Island RD over Flint River?

It is owned by the County Highway Agency.