US Bridges

SR 71 over Flat Rock Creek

Good

Jackson County, Alabama · 0.1MINJCT.SR117*SR71 · Structure no. 018090

Built
2003
22 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
2,056
2022 count
Owner
State
State Highway Agency

About this bridge

SR 71 over Flat Rock Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 71 over Flat Rock Creek in Jackson County, Alabama. It was built in 2003, so it is 22 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,056 vehicles a day, roughly 4% of them trucks, projected to reach 2,878 by 2042. The structure is 135 ft (41.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 71
CrossesFlat Rock Creek
Location0.1MINJCT.SR117*SR71
RouteState Highway 71
CountyJackson County
StateAlabama
Coordinates34.76786, -85.70311
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.8 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,056 (2022)
Projected traffic2,878 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 proposedNone recorded
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 71 over Flat Rock Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is SR 71 over Flat Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does SR 71 over Flat Rock Creek carry?

About 2,056 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SR 71 over Flat Rock Creek?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 43 ft wide.

Who owns SR 71 over Flat Rock Creek?

It is owned by the State Highway Agency.