US Bridges

FAP 402 (sr 40) over Burra-Burra Creek

Poor

Polk County, Tennessee · 1 Mile East of Ducktown · Structure no. 70SR0400030

Built
1940
85 years old, rebuilt 1967
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
225 ft
5 main spans
Daily traffic
4,700
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 402 (sr 40) over Burra-Burra Creek is a concrete tee beam carrying FAP 402 (sr 40) over Burra-Burra Creek in Polk County, Tennessee. It was built in 1940 and reconstructed in 1967, so it is 85 years old, older 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.

It carries about 4,700 vehicles a day, roughly 10% of them trucks, projected to reach 7,520 by 2042. The structure is 225 ft (68.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAP 402 (sr 40)
CrossesBurra-Burra Creek
Location1 Mile East of Ducktown
RouteU.S. Route 64
Coordinates35.0275, -84.37209
Functional classRural Principal Arterial - Other

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length225 ft (68.6 m)
Longest span53 ft (16.2 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2021)
Projected traffic7,520 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 402 (sr 40) over Burra-Burra Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1967.

What condition is FAP 402 (sr 40) over Burra-Burra 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 April 2024.

How much traffic does FAP 402 (sr 40) over Burra-Burra Creek carry?

About 4,700 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 402 (sr 40) over Burra-Burra Creek?

The structure is 225 ft (68.6 m) long with a longest span of 53 ft (16.2 m) and a deck 42 ft wide.

Who owns FAP 402 (sr 40) over Burra-Burra Creek?

It is owned by the State Highway Agency.