US Bridges

Nfa A080 over Sequatchie River

Good

Bledsoe County, Tennessee · 1.5 MI from SR28 · Structure no. 040A0800001

Built
1988
37 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
160
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A080 over Sequatchie River is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A080 over Sequatchie River in Bledsoe County, Tennessee. It was built in 1988, so it is 37 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 160 vehicles a day, roughly 2% of them trucks, projected to reach 256 by 2040. The structure is 116 ft (35.4 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa A080
CrossesSequatchie River
Location1.5 MI from SR28
RouteCounty Highway 80
Coordinates35.69203, -85.08329
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.4 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span46 ft (14 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2020)
Projected traffic256 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$782,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A080 over Sequatchie River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa A080 over Sequatchie River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Nfa A080 over Sequatchie River carry?

About 160 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A080 over Sequatchie River?

The structure is 116 ft (35.4 m) long with a longest span of 46 ft (14 m) and a deck 24 ft wide.

Who owns Nfa A080 over Sequatchie River?

It is owned by the County Highway Agency.