US Bridges

Dunbar Road over Roaring Fork Creek

Good

Wise County, Virginia · 3.2M TO23B&3.81MTOENDRTE. · Structure no. 000000000027323

Built
2002
23 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
54 ft
2 main spans
Daily traffic
167
2022 count
Owner
State
State Highway Agency

About this bridge

Dunbar Road over Roaring Fork Creek is a concrete slab carrying Dunbar Road over Roaring Fork Creek in Wise County, Virginia. It was built in 2002, so it is 23 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 167 vehicles a day, roughly 3% of them trucks, projected to reach 186 by 2042. The structure is 54 ft (16.5 m) long and 30 ft wide. If it were closed, the detour would be 123 mi (198 km).

CarriesDunbar Road
CrossesRoaring Fork Creek
Location3.2M TO23B&3.81MTOENDRTE.
RouteCounty Highway 603
Coordinates36.95637, -82.73154
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating98 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length54 ft (16.5 m)
Longest span27 ft (8.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic167 (2022)
Projected traffic186 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 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 Dunbar Road over Roaring Fork Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Dunbar Road over Roaring Fork Creek 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 October 2024.

How much traffic does Dunbar Road over Roaring Fork Creek carry?

About 167 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Dunbar Road over Roaring Fork Creek?

The structure is 54 ft (16.5 m) long with a longest span of 27 ft (8.2 m) and a deck 30 ft wide.

Who owns Dunbar Road over Roaring Fork Creek?

It is owned by the State Highway Agency.