US Bridges

CO Rt 47 over St. Florian Branch

Fair

Lauderdale County, Alabama · 0.2 MI N Int CO at 30 · Structure no. 000112

Built
1917
108 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,710
1989 count
Owner
County
County Highway Agency

About this bridge

CO Rt 47 over St. Florian Branch is a concrete culvert carrying CO Rt 47 over St. Florian Branch in Lauderdale County, Alabama. It was built in 1917, so it is 108 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 6 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 1,710 vehicles a day, roughly 10% of them trucks, projected to reach 3,420 by 2031. The structure is 33 ft (10.1 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCO Rt 47
CrossesSt. Florian Branch
Location0.2 MI N Int CO at 30
RouteCounty Highway 47
StateAlabama
Coordinates34.91223, -87.58832
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.6 US tons
Inventory rating41.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,710 (1989)
Projected traffic3,420 by 2031
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$352,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Rt 47 over St. Florian Branch built?

It was built in 1917, making it 108 years old in 2025.

What condition is CO Rt 47 over St. Florian Branch 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 2024.

How much traffic does CO Rt 47 over St. Florian Branch carry?

About 1,710 vehicles per day (1989 count), of which roughly 10% are trucks.

How long is CO Rt 47 over St. Florian Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns CO Rt 47 over St. Florian Branch?

It is owned by the County Highway Agency.