US Bridges

Nfa 1116 (sa 2101) over Sink Creek

Fair

DeKalb County, Tennessee · 6 MI from SR56 · Structure no. 21011160001

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
494
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1116 (sa 2101) over Sink Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 1116 (sa 2101) over Sink Creek in DeKalb County, Tennessee. It was built in 1985, so it is 40 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 494 vehicles a day, projected to reach 728 by 2042. The structure is 119 ft (36.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 1116 (sa 2101)
CrossesSink Creek
Location6 MI from SR56
RouteCounty Highway 1116
CountyDeKalb County
StateTennessee
Coordinates35.87163, -85.84689
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length119 ft (36.2 m)
Longest span38 ft (11.7 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic494 (2021)
Projected traffic728 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nfa 1116 (sa 2101) over Sink Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa 1116 (sa 2101) over Sink 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 November 2023.

How much traffic does Nfa 1116 (sa 2101) over Sink Creek carry?

About 494 vehicles per day (2021 count).

How long is Nfa 1116 (sa 2101) over Sink Creek?

The structure is 119 ft (36.2 m) long with a longest span of 38 ft (11.7 m) and a deck 28 ft wide.

Who owns Nfa 1116 (sa 2101) over Sink Creek?

It is owned by the County Highway Agency.