US Bridges

Nfa A051 over Spivey Creek

PoorPosted for load

Unicoi County, Tennessee · S. of SR 36 · Structure no. 860A0510001

Built
2019
6 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A051 over Spivey Creek is a prestressed concrete stringer/multi-beam or girder carrying Nfa A051 over Spivey Creek in Unicoi County, Tennessee. It was built in 2019, so it is 6 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, roughly 5% of them trucks, projected to reach 128 by 2042. The structure is 31 ft (9.5 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A051
CrossesSpivey Creek
LocationS. of SR 36
RouteCounty Highway 51
Coordinates36.03865, -82.48734
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length31 ft (9.5 m)
Longest span28 ft (8.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic128 by 2042
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A051 over Spivey Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Nfa A051 over Spivey Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Nfa A051 over Spivey Creek carry?

About 80 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A051 over Spivey Creek?

The structure is 31 ft (9.5 m) long with a longest span of 28 ft (8.6 m) and a deck 18 ft wide.

Who owns Nfa A051 over Spivey Creek?

It is owned by the County Highway Agency.