US Bridges

Nfa 2509 over Sinking Creek

FairPosted for load

Cocke County, Tennessee · 3.5 M SE of I40-US70 Jct. · Structure no. 15025090009

Built
1942
83 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
1,951
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2509 over Sinking Creek is a steel stringer/multi-beam or girder carrying Nfa 2509 over Sinking Creek in Cocke County, Tennessee. It was built in 1942, so it is 83 years old, older 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. Its operating status is: posted for load restriction.

It carries about 1,951 vehicles a day, roughly 1% of them trucks, projected to reach 3,712 by 2041. The structure is 27 ft (8.2 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa 2509
CrossesSinking Creek
Location3.5 M SE of I40-US70 Jct.
RouteCounty Highway 2509
CountyCocke County
StateTennessee
Coordinates35.92882, -83.26383
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span21 ft (6.3 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,951 (2021)
Projected traffic3,712 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$604,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2509 over Sinking Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is Nfa 2509 over Sinking 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 September 2024.

How much traffic does Nfa 2509 over Sinking Creek carry?

About 1,951 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 2509 over Sinking Creek?

The structure is 27 ft (8.2 m) long with a longest span of 21 ft (6.3 m) and a deck 20 ft wide.

Who owns Nfa 2509 over Sinking Creek?

It is owned by the County Highway Agency.