US Bridges

Gov. Plant Road over N F Holston River

Fair

Smyth County, Virginia · .30 to R91 & at Endmaint · Structure no. 000000000022611

Built
1978
47 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
161 ft
3 main spans
Daily traffic
75
1991 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Gov. Plant Road over N F Holston River is a prestressed concrete box beam or girders - multiple carrying Gov. Plant Road over N F Holston River in Smyth County, Virginia. It was built in 1978, so it is 47 years old, younger than the Virginia average of 50.7 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.

It carries about 75 vehicles a day, projected to reach 113 by 2042. The structure is 161 ft (49.1 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesGov. Plant Road
CrossesN F Holston River
Location.30 to R91 & at Endmaint
RouteCity Street 0
CountySmyth County
StateVirginia
Coordinates36.89153, -81.75827
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80 US tons
Inventory rating60 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length161 ft (49.1 m)
Longest span54 ft (16.5 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (1991)
Projected traffic113 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$292.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Gov. Plant Road over N F Holston River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Gov. Plant Road over N F Holston River 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 December 2024.

How much traffic does Gov. Plant Road over N F Holston River carry?

About 75 vehicles per day (1991 count).

How long is Gov. Plant Road over N F Holston River?

The structure is 161 ft (49.1 m) long with a longest span of 54 ft (16.5 m) and a deck 27 ft wide.

Who owns Gov. Plant Road over N F Holston River?

It is owned by the Town or Township Highway Agency.