US Bridges

Nfa 1155 (sa 0409) over Sequatchie River

Fair

Bledsoe County, Tennessee · .2 MI East of SR 28 · Structure no. 04S42630001

Built
1986
39 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
177 ft
3 main spans
Daily traffic
693
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1155 (sa 0409) over Sequatchie River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 1155 (sa 0409) over Sequatchie River in Bledsoe 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 6 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 693 vehicles a day, roughly 3% of them trucks, projected to reach 1,104 by 2040. The structure is 177 ft (54.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1155 (sa 0409)
CrossesSequatchie River
Location.2 MI East of SR 28
RouteCounty Highway 1155
CountyBledsoe County
StateTennessee
Coordinates35.60563, -85.18599
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 inspectionJune 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length177 ft (54.1 m)
Longest span58 ft (17.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic693 (2021)
Projected traffic1,104 by 2040
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1155 (sa 0409) over Sequatchie River built?

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

What condition is Nfa 1155 (sa 0409) 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 June 2024.

How much traffic does Nfa 1155 (sa 0409) over Sequatchie River carry?

About 693 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1155 (sa 0409) over Sequatchie River?

The structure is 177 ft (54.1 m) long with a longest span of 58 ft (17.8 m) and a deck 28 ft wide.

Who owns Nfa 1155 (sa 0409) over Sequatchie River?

It is owned by the County Highway Agency.