US Bridges

Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv

FairPosted for load

Sullivan County, Tennessee · W of SR34-ENTERPRISE RD · Structure no. 82026560001

Built
1953
72 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
659 ft
8 main spans
Daily traffic
786
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv is a steel continuous stringer/multi-beam or girder carrying Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv in Sullivan County, Tennessee. It was built in 1953, so it is 72 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 786 vehicles a day, roughly 4% of them trucks, projected to reach 1,629 by 2042. The structure is 659 ft (201 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa 2656 (sa 8216)
CrossesBoon Lk So Fk Holston Rv
LocationW of SR34-ENTERPRISE RD
RouteCounty Highway 2656
Coordinates36.4739, -82.3168
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating17.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8 (+2 approach)
Design loadH 15
Structure length659 ft (201 m)
Longest span76 ft (23.2 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic786 (2021)
Projected traffic1,629 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv built?

It was built in 1953, making it 72 years old in 2025.

What condition is Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv carry?

About 786 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv?

The structure is 659 ft (201 m) long with a longest span of 76 ft (23.2 m) and a deck 22 ft wide.

Who owns Nfa 2656 (sa 8216) over Boon Lk So Fk Holston Rv?

It is owned by the County Highway Agency.