US Bridges

FAP 56 over Sink Creek

Good

DeKalb County, Tennessee · 5.7 Mi.S.Of Smithville · Structure no. 21SR0560001

Built
2022
3 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
180 ft
2 main spans
Daily traffic
4,395
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 56 over Sink Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 56 over Sink Creek in DeKalb County, Tennessee. It was built in 2022, so it is 3 years old, younger than the Tennessee average of 47.4 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 4,395 vehicles a day, roughly 10% of them trucks, projected to reach 7,032 by 2042. The structure is 180 ft (54.9 m) long and 49 ft wide. If it were closed, the detour would be 51 mi (82 km).

Location

Open in Google Maps
CarriesFAP 56
CrossesSink Creek
Location5.7 Mi.S.Of Smithville
RouteState Highway 56
CountyDeKalb County
StateTennessee
Coordinates35.85833, -85.79784
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length180 ft (54.9 m)
Longest span90 ft (27.4 m)
Deck width49 ft (15 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,395 (2021)
Projected traffic7,032 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 56 over Sink Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is FAP 56 over Sink 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 November 2023.

How much traffic does FAP 56 over Sink Creek carry?

About 4,395 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 56 over Sink Creek?

The structure is 180 ft (54.9 m) long with a longest span of 90 ft (27.4 m) and a deck 49 ft wide.

Who owns FAP 56 over Sink Creek?

It is owned by the State Highway Agency.