US Bridges

Nfa D546 over SR 111

Fair

Sequatchie County, Tennessee · At Hamilton County Line · Structure no. 77SR1110011

Built
1993
32 years old
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
243 ft
2 main spans
Daily traffic
200
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa D546 over SR 111 is a concrete continuous box beam or girders - single or spread carrying Nfa D546 over SR 111 in Sequatchie County, Tennessee. It was built in 1993, so it is 32 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2042. The structure is 243 ft (74.1 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa D546
CrossesSR 111
LocationAt Hamilton County Line
RouteCounty Highway 546
CountySequatchie County
StateTennessee
Coordinates35.34479, -85.2327
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span126 ft (38.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic320 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa D546 over SR 111 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Nfa D546 over SR 111 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 November 2024.

How much traffic does Nfa D546 over SR 111 carry?

About 200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa D546 over SR 111?

The structure is 243 ft (74.1 m) long with a longest span of 126 ft (38.4 m) and a deck 32 ft wide.

Who owns Nfa D546 over SR 111?

It is owned by the State Highway Agency.