US Bridges

SR71 over Sutton Creek

Good

Calhoun County, Florida · 0.4 Miles S. of SR20 · Structure no. 470951

Built
1993
32 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
3,100
2022 count
Owner
State
State Highway Agency

About this bridge

SR71 over Sutton Creek is a concrete culvert carrying SR71 over Sutton Creek in Calhoun County, Florida. It was built in 1993, so it is 32 years old, younger than the Florida average of 41.3 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 3,100 vehicles a day, roughly 16% of them trucks, projected to reach 5,378 by 2044. The structure is 32 ft (9.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR71
CrossesSutton Creek
Location0.4 Miles S. of SR20
RouteState Highway 71
StateFlorida
Coordinates30.43706, -85.04781
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length32 ft (9.9 m)
Longest span16 ft (4.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2022)
Projected traffic5,378 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Sutton Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR71 over Sutton 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 March 2024.

How much traffic does SR71 over Sutton Creek carry?

About 3,100 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is SR71 over Sutton Creek?

The structure is 32 ft (9.9 m) long with a longest span of 16 ft (4.8 m).

Who owns SR71 over Sutton Creek?

It is owned by the State Highway Agency.