US Bridges

Nfa 1792 (sa 6806) over Brush Creek

FairPosted for load

Perry County, Tennessee · 7.2 M. Ne. Linden. · Structure no. 68S63890003

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
84
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1792 (sa 6806) over Brush Creek is a prestressed concrete box beam or girders - multiple carrying Nfa 1792 (sa 6806) over Brush Creek in Perry 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. Its operating status is: posted for load restriction.

It carries about 84 vehicles a day, roughly 2% of them trucks, projected to reach 181 by 2042. The structure is 90 ft (27.4 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 1792 (sa 6806)
CrossesBrush Creek
Location7.2 M. Ne. Linden.
RouteCounty Highway 1792
Coordinates35.66848, -87.79307
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 statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84 (2021)
Projected traffic181 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$260,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1792 (sa 6806) over Brush Creek built?

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

What condition is Nfa 1792 (sa 6806) over Brush 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 1792 (sa 6806) over Brush Creek carry?

About 84 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Nfa 1792 (sa 6806) over Brush Creek?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Nfa 1792 (sa 6806) over Brush Creek?

It is owned by the County Highway Agency.