US Bridges

Nfa A306 over Gulf Fork Big Creek

Good

Cocke County, Tennessee · 5 MI E of Hartford · Structure no. 150A3060001

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A306 over Gulf Fork Big Creek is a concrete continuous slab carrying Nfa A306 over Gulf Fork Big Creek in Cocke County, Tennessee. It was built in 2007, so it is 18 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 10 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2038. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A306
CrossesGulf Fork Big Creek
Location5 MI E of Hartford
RouteCounty Highway 306
Coordinates35.82772, -83.05385
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span18 ft (5.5 m)
Deck width35 ft (10.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2038
Trucks2%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A306 over Gulf Fork Big Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Nfa A306 over Gulf Fork Big 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 November 2024.

How much traffic does Nfa A306 over Gulf Fork Big Creek carry?

About 10 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A306 over Gulf Fork Big Creek?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.5 m) and a deck 35 ft wide.

Who owns Nfa A306 over Gulf Fork Big Creek?

It is owned by the County Highway Agency.