US Bridges

Nfa A416 over Conasauga Creek

Good

Monroe County, Tennessee · S of SR315-SR39 JCT · Structure no. 620A4160001

Built
1995
30 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A416 over Conasauga Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A416 over Conasauga Creek in Monroe County, Tennessee. It was built in 1995, so it is 30 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 40 vehicles a day, roughly 2% of them trucks, projected to reach 64 by 2040. The structure is 54 ft (16.6 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A416
CrossesConasauga Creek
LocationS of SR315-SR39 JCT
RouteCounty Highway 416
Coordinates35.31157, -84.3603
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating31.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.6 m)
Longest span50 ft (15.1 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 by 2040
Trucks2%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A416 over Conasauga Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Nfa A416 over Conasauga Creek 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 A416 over Conasauga Creek carry?

About 40 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A416 over Conasauga Creek?

The structure is 54 ft (16.6 m) long with a longest span of 50 ft (15.1 m) and a deck 24 ft wide.

Who owns Nfa A416 over Conasauga Creek?

It is owned by the County Highway Agency.