US Bridges

Nfa 921 (sa 6802) over Branch

Fair

Perry County, Tennessee · 4 M. S. Linden. · Structure no. 68F02430005

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
1,051
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 921 (sa 6802) over Branch is a concrete continuous culvert carrying Nfa 921 (sa 6802) over Branch in Perry County, Tennessee. It was built in 1986, so it is 39 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 1,051 vehicles a day, roughly 3% of them trucks, projected to reach 1,213 by 2041. The structure is 22 ft (6.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 921 (sa 6802)
CrossesBranch
Location4 M. S. Linden.
RouteCounty Highway 921
CountyPerry County
StateTennessee
Coordinates35.56515, -87.84367
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,051 (2021)
Projected traffic1,213 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$179,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 921 (sa 6802) over Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa 921 (sa 6802) over Branch 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 921 (sa 6802) over Branch carry?

About 1,051 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 921 (sa 6802) over Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Nfa 921 (sa 6802) over Branch?

It is owned by the County Highway Agency.