US Bridges

Nfa A407 over Garrison Fork Creek

Fair

Coffee County, Tennessee · 1.1 MI from SR 2 · Structure no. 160A4070001

Built
1975
50 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A407 over Garrison Fork Creek is a concrete continuous culvert carrying Nfa A407 over Garrison Fork Creek in Coffee County, Tennessee. It was built in 1975, so it is 50 years old, older 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2040. The structure is 35 ft (10.8 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A407
CrossesGarrison Fork Creek
Location1.1 MI from SR 2
RouteCounty Highway 407
CountyCoffee County
StateTennessee
Coordinates35.63293, -86.23362
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating46.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length35 ft (10.8 m)
Longest span18 ft (5.4 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$188,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A407 over Garrison Fork Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A407 over Garrison Fork Creek 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 January 2024.

How much traffic does Nfa A407 over Garrison Fork Creek carry?

About 30 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A407 over Garrison Fork Creek?

The structure is 35 ft (10.8 m) long with a longest span of 18 ft (5.4 m) and a deck 12 ft wide.

Who owns Nfa A407 over Garrison Fork Creek?

It is owned by the County Highway Agency.