US Bridges

Long Hollow Road over N Fork Holston River

Fair

Smyth County, Virginia · 0.2 FR 797; 0.1 to 756 · Structure no. 000000000017596

Built
1961
64 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
332
2022 count
Owner
State
State Highway Agency

About this bridge

Long Hollow Road over N Fork Holston River is a prestressed concrete box beam or girders - multiple carrying Long Hollow Road over N Fork Holston River in Smyth County, Virginia. It was built in 1961, so it is 64 years old, older 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 5 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 332 vehicles a day, roughly 2% of them trucks, projected to reach 380 by 2045. The structure is 197 ft (60 m) long and 29 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesLong Hollow Road
CrossesN Fork Holston River
Location0.2 FR 797; 0.1 to 756
RouteCounty Highway 630
Coordinates36.92472, -81.62633
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating61 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 15
Structure length197 ft (60 m)
Longest span66 ft (20.1 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic332 (2022)
Projected traffic380 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Long Hollow Road over N Fork Holston River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Long Hollow Road over N Fork 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 October 2023.

How much traffic does Long Hollow Road over N Fork Holston River carry?

About 332 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Long Hollow Road over N Fork Holston River?

The structure is 197 ft (60 m) long with a longest span of 66 ft (20.1 m) and a deck 29 ft wide.

Who owns Long Hollow Road over N Fork Holston River?

It is owned by the State Highway Agency.