US Bridges

Sbl Route 0081 over RTE 647_DOW Hollow Rd.

Fair

Roanoke County, Virginia · 1.82 Mont Co; 5.01 Rt 112 · Structure no. 000000000014922

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
194 ft
4 main spans
Daily traffic
26,097
2022 count
Owner
State
State Highway Agency

About this bridge

Sbl Route 0081 over RTE 647_DOW Hollow Rd. is a steel stringer/multi-beam or girder carrying Sbl Route 0081 over RTE 647_DOW Hollow Rd. in Roanoke County, Virginia. It was built in 1970, so it is 55 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 26,097 vehicles a day, roughly 1% of them trucks, projected to reach 27,629 by 2042. The structure is 194 ft (59.2 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesSbl Route 0081
CrossesRTE 647_DOW Hollow Rd.
Location1.82 Mont Co; 5.01 Rt 112
RouteInterstate 81
CountyRoanoke County
StateVirginia
Coordinates37.25616, -80.1763
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length194 ft (59.2 m)
Longest span53 ft (16.3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,097 (2022)
Projected traffic27,629 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sbl Route 0081 over RTE 647_DOW Hollow Rd. built?

It was built in 1970, making it 55 years old in 2025.

What condition is Sbl Route 0081 over RTE 647_DOW Hollow Rd. 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 August 2023.

How much traffic does Sbl Route 0081 over RTE 647_DOW Hollow Rd. carry?

About 26,097 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Sbl Route 0081 over RTE 647_DOW Hollow Rd.?

The structure is 194 ft (59.2 m) long with a longest span of 53 ft (16.3 m) and a deck 42 ft wide.

Who owns Sbl Route 0081 over RTE 647_DOW Hollow Rd.?

It is owned by the State Highway Agency.