US Bridges

Nfa A186 over Ferrell Branch

Good

Coffee County, Tennessee · 2.5 MI South of SR 2 · Structure no. 160A1860001

Built
1950
75 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A186 over Ferrell Branch is a concrete culvert carrying Nfa A186 over Ferrell Branch in Coffee County, Tennessee. It was built in 1950, so it is 75 years old, older 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 70 vehicles a day, roughly 2% of them trucks, projected to reach 112 by 2042. The structure is 22 ft (6.6 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 A186
CrossesFerrell Branch
Location2.5 MI South of SR 2
RouteCounty Highway 186
CountyCoffee County
StateTennessee
Coordinates35.60268, -86.1711
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating43.5 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.6 m)
Longest span16 ft (4.9 m)
Deck width24 ft (7.2 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2042
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$98,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A186 over Ferrell Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nfa A186 over Ferrell 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 March 2024.

How much traffic does Nfa A186 over Ferrell Branch carry?

About 70 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A186 over Ferrell Branch?

The structure is 22 ft (6.6 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns Nfa A186 over Ferrell Branch?

It is owned by the County Highway Agency.