US Bridges

Nfa 953 (sa 5112) over Big Swan Creek

Fair

Lewis County, Tennessee · 2 M. E. Gordonsburg. · Structure no. 51S63160011

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
167 ft
5 main spans
Daily traffic
340
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 953 (sa 5112) over Big Swan Creek is a concrete tee beam carrying Nfa 953 (sa 5112) over Big Swan Creek in Lewis County, Tennessee. It was built in 1960, so it is 65 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.

It carries about 340 vehicles a day, roughly 3% of them trucks, projected to reach 522 by 2041. The structure is 167 ft (50.9 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 953 (sa 5112)
CrossesBig Swan Creek
Location2 M. E. Gordonsburg.
RouteCounty Highway 953
CountyLewis County
StateTennessee
Coordinates35.55493, -87.38073
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span53 ft (16.2 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2021)
Projected traffic522 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 953 (sa 5112) over Big Swan Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 953 (sa 5112) over Big Swan 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 May 2023.

How much traffic does Nfa 953 (sa 5112) over Big Swan Creek carry?

About 340 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 953 (sa 5112) over Big Swan Creek?

The structure is 167 ft (50.9 m) long with a longest span of 53 ft (16.2 m) and a deck 29 ft wide.

Who owns Nfa 953 (sa 5112) over Big Swan Creek?

It is owned by the County Highway Agency.