US Bridges

Nfa A318 over Jug Creek

Good

Wilson County, Tennessee · 1.9 MI East of SR266 · Structure no. 950A3180005

Built
1970
55 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
52 ft
4 main spans
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A318 over Jug Creek is a concrete continuous culvert carrying Nfa A318 over Jug Creek in Wilson County, Tennessee. It was built in 1970, so it is 55 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 2040. The structure is 52 ft (15.8 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa A318
CrossesJug Creek
Location1.9 MI East of SR266
RouteCounty Highway 0A318
Coordinates36.02878, -86.20838
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length52 ft (15.8 m)
Longest span12 ft (3.7 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2040
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$314,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A318 over Jug Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A318 over Jug 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 June 2024.

How much traffic does Nfa A318 over Jug Creek carry?

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

How long is Nfa A318 over Jug Creek?

The structure is 52 ft (15.8 m) long with a longest span of 12 ft (3.7 m) and a deck 16 ft wide.

Who owns Nfa A318 over Jug Creek?

It is owned by the County Highway Agency.