US Bridges

Nbl Rte. 460 over S. Fork Roanoke River

Fair

Montgomery County, Virginia · 1.94-RKE Co; 10.97-81 · Structure no. 000000000012120

Built
1950
75 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
261 ft
5 main spans
Daily traffic
4,894
2022 count
Owner
State
State Highway Agency

About this bridge

Nbl Rte. 460 over S. Fork Roanoke River is a steel continuous stringer/multi-beam or girder carrying Nbl Rte. 460 over S. Fork Roanoke River in Montgomery County, Virginia. It was built in 1950, so it is 75 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 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 4,894 vehicles a day, projected to reach 5,458 by 2042. The structure is 261 ft (79.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNbl Rte. 460
CrossesS. Fork Roanoke River
Location1.94-RKE Co; 10.97-81
RouteU.S. Route 11
CountyMontgomery County
StateVirginia
Coordinates37.22072, -80.22677
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
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 evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length261 ft (79.5 m)
Longest span71 ft (21.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,894 (2022)
Projected traffic5,458 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Nbl Rte. 460 over S. Fork Roanoke River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Nbl Rte. 460 over S. Fork Roanoke 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 Nbl Rte. 460 over S. Fork Roanoke River carry?

About 4,894 vehicles per day (2022 count).

How long is Nbl Rte. 460 over S. Fork Roanoke River?

The structure is 261 ft (79.5 m) long with a longest span of 71 ft (21.5 m) and a deck 32 ft wide.

Who owns Nbl Rte. 460 over S. Fork Roanoke River?

It is owned by the State Highway Agency.