US Bridges

Nfa A184 over Dug Branch

Good

Cannon County, Tennessee · 5MI North of Coffee Co. · Structure no. 080A1840001

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
120
2025 count
Owner
County
County Highway Agency

About this bridge

Nfa A184 over Dug Branch is a prestressed concrete box beam or girders - single or spread carrying Nfa A184 over Dug Branch in Cannon County, Tennessee. It was built in 2024, so it is 1 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 120 vehicles a day, roughly 3% of them trucks, projected to reach 192 by 2045. The structure is 47 ft (14.4 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa A184
CrossesDug Branch
Location5MI North of Coffee Co.
RouteCounty Highway 184
CountyCannon County
StateTennessee
Coordinates35.72702, -86.18455
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length47 ft (14.4 m)
Longest span47 ft (14.4 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2025)
Projected traffic192 by 2045
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$137,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A184 over Dug Branch built?

It was built in 2024, making it 1 years old in 2025.

What condition is Nfa A184 over Dug Branch 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 October 2024.

How much traffic does Nfa A184 over Dug Branch carry?

About 120 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Nfa A184 over Dug Branch?

The structure is 47 ft (14.4 m) long with a longest span of 47 ft (14.4 m) and a deck 24 ft wide.

Who owns Nfa A184 over Dug Branch?

It is owned by the County Highway Agency.