US Bridges

Sunset River Rd. over N Fork Holston River

Good

Smyth County, Virginia · .3 FR R622 & 2.9 to R761 · Structure no. 000000000026043

Built
1999
26 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
1 main span
Daily traffic
78
2022 count
Owner
State
State Highway Agency

About this bridge

Sunset River Rd. over N Fork Holston River is a steel stringer/multi-beam or girder carrying Sunset River Rd. over N Fork Holston River in Smyth County, Virginia. It was built in 1999, so it is 26 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 78 vehicles a day, projected to reach 87 by 2045. The structure is 102 ft (31.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSunset River Rd.
CrossesN Fork Holston River
Location.3 FR R622 & 2.9 to R761
RouteCounty Highway 620
Coordinates36.94101, -81.44913
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length102 ft (31.1 m)
Longest span98 ft (29.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2022)
Projected traffic87 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Sunset River Rd. over N Fork Holston River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Sunset River Rd. over N Fork Holston River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Sunset River Rd. over N Fork Holston River carry?

About 78 vehicles per day (2022 count).

How long is Sunset River Rd. over N Fork Holston River?

The structure is 102 ft (31.1 m) long with a longest span of 98 ft (29.9 m) and a deck 24 ft wide.

Who owns Sunset River Rd. over N Fork Holston River?

It is owned by the State Highway Agency.