US Bridges

SR71 over Rocky Creek

Fair

Jackson County, Florida · 3.5MI. N of Calhoun Co. · Structure no. 530081

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
240 ft
8 main spans
Daily traffic
5,900
2022 count
Owner
State
State Highway Agency

About this bridge

SR71 over Rocky Creek is a prestressed concrete slab carrying SR71 over Rocky Creek in Jackson County, Florida. It was built in 1979, so it is 46 years old, older than the Florida average of 41.3 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 5,900 vehicles a day, roughly 10% of them trucks, projected to reach 10,236 by 2044. The structure is 240 ft (73.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR71
CrossesRocky Creek
Location3.5MI. N of Calhoun Co.
RouteState Highway 71
CountyJackson County
StateFlorida
Coordinates30.65735, -85.16242
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.2 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans8
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2022)
Projected traffic10,236 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR71 over Rocky Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is SR71 over Rocky 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 August 2023.

How much traffic does SR71 over Rocky Creek carry?

About 5,900 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR71 over Rocky Creek?

The structure is 240 ft (73.2 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns SR71 over Rocky Creek?

It is owned by the State Highway Agency.