US Bridges

SR20 over Sutton Creek

Fair

Calhoun County, Florida · 0.1MI West of SR71 · Structure no. 470046

Built
1952
73 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
11,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR20 over Sutton Creek is a concrete culvert carrying SR20 over Sutton Creek in Calhoun County, Florida. It was built in 1952, so it is 73 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 11,500 vehicles a day, roughly 18% of them trucks, projected to reach 19,952 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesSR20
CrossesSutton Creek
Location0.1MI West of SR71
RouteState Highway 20
CountyCalhoun County
StateFlorida
Coordinates30.44331, -85.04681
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2022)
Projected traffic19,952 by 2044
Trucks18%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemYes

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 SR20 over Sutton Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR20 over Sutton 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 April 2023.

How much traffic does SR20 over Sutton Creek carry?

About 11,500 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is SR20 over Sutton Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SR20 over Sutton Creek?

It is owned by the State Highway Agency.