US Bridges

Horn Mountain RD over Dismal River

Fair

Buchanan County, Virginia · 2.5 FR R633 & .1 to R638 · Structure no. 000000000003888

Built
1949
76 years old, rebuilt 2008
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
3 main spans
Daily traffic
210
2015 count
Owner
State
State Highway Agency

About this bridge

Horn Mountain RD over Dismal River is a steel stringer/multi-beam or girder carrying Horn Mountain RD over Dismal River in Buchanan County, Virginia. It was built in 1949 and reconstructed in 2008, so it is 76 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 210 vehicles a day, projected to reach 242 by 2042. The structure is 99 ft (30.2 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHorn Mountain RD
CrossesDismal River
Location2.5 FR R633 & .1 to R638
RouteCounty Highway 628
Coordinates37.24196, -81.90488
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadHS 20 + Mod
Structure length99 ft (30.2 m)
Longest span33 ft (10.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2015)
Projected traffic242 by 2042
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Horn Mountain RD over Dismal River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2008.

What condition is Horn Mountain RD over Dismal 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 September 2024.

How much traffic does Horn Mountain RD over Dismal River carry?

About 210 vehicles per day (2015 count).

How long is Horn Mountain RD over Dismal River?

The structure is 99 ft (30.2 m) long with a longest span of 33 ft (10.1 m) and a deck 24 ft wide.

Who owns Horn Mountain RD over Dismal River?

It is owned by the State Highway Agency.