US Bridges

POORMOUNTAINRD/612 over Roanoke River

Fair

Roanoke County, Virginia · 0.01-RTE639; 1.00-RTE646 · Structure no. 000000000014989

Built
1962
63 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
205 ft
3 main spans
Daily traffic
990
2022 count
Owner
State
State Highway Agency

About this bridge

POORMOUNTAINRD/612 over Roanoke River is a steel stringer/multi-beam or girder carrying POORMOUNTAINRD/612 over Roanoke River in Roanoke County, Virginia. It was built in 1962, so it is 63 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 990 vehicles a day, roughly 1% of them trucks, projected to reach 1,104 by 2042. The structure is 205 ft (62.5 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPOORMOUNTAINRD/612
CrossesRoanoke River
Location0.01-RTE639; 1.00-RTE646
RouteCounty Highway 612
CountyRoanoke County
StateVirginia
Coordinates37.25528, -80.13754
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length205 ft (62.5 m)
Longest span69 ft (21 m)
Deck width32 ft (9.9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2022)
Projected traffic1,104 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$746.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was POORMOUNTAINRD/612 over Roanoke River built?

It was built in 1962, making it 63 years old in 2025.

What condition is POORMOUNTAINRD/612 over 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 May 2024.

How much traffic does POORMOUNTAINRD/612 over Roanoke River carry?

About 990 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is POORMOUNTAINRD/612 over Roanoke River?

The structure is 205 ft (62.5 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns POORMOUNTAINRD/612 over Roanoke River?

It is owned by the State Highway Agency.