US Bridges

Nfa A605 over Spivey Creek

GoodPosted for load

Unicoi County, Tennessee · 3 MI S of Ernestville · Structure no. 860A4270001

Built
2007
18 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A605 over Spivey Creek is a steel stringer/multi-beam or girder carrying Nfa A605 over Spivey Creek in Unicoi 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 16 by 2042. The structure is 26 ft (7.9 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A605
CrossesSpivey Creek
Location3 MI S of Ernestville
RouteCounty Highway 605
Coordinates36.04318, -82.4972
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2042
Trucks1%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$181,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A605 over Spivey Creek built?

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

What condition is Nfa A605 over Spivey 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 July 2024.

How much traffic does Nfa A605 over Spivey Creek carry?

About 10 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A605 over Spivey Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns Nfa A605 over Spivey Creek?

It is owned by the County Highway Agency.