US Bridges

Nfa 2164 (sa 7703) over Sequatchie River

FairPosted for load

Sequatchie County, Tennessee · 2 MI South of SR28 · Structure no. 77021640001

Built
1983
42 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
246 ft
3 main spans
Daily traffic
384
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2164 (sa 7703) over Sequatchie River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 2164 (sa 7703) over Sequatchie River in Sequatchie County, Tennessee. It was built in 1983, so it is 42 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 6 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 384 vehicles a day, roughly 3% of them trucks, projected to reach 493 by 2042. The structure is 246 ft (75 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa 2164 (sa 7703)
CrossesSequatchie River
Location2 MI South of SR28
RouteCounty Highway 2164
CountySequatchie County
StateTennessee
Coordinates35.30023, -85.41666
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating14.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length246 ft (75 m)
Longest span82 ft (25 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic384 (2021)
Projected traffic493 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2164 (sa 7703) over Sequatchie River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Nfa 2164 (sa 7703) over Sequatchie River 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 December 2024.

How much traffic does Nfa 2164 (sa 7703) over Sequatchie River carry?

About 384 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2164 (sa 7703) over Sequatchie River?

The structure is 246 ft (75 m) long with a longest span of 82 ft (25 m) and a deck 30 ft wide.

Who owns Nfa 2164 (sa 7703) over Sequatchie River?

It is owned by the County Highway Agency.