Structure 17656 · Smyth County, VA

Railroad Drive over Ns Railway

Carries Railroad Drive over Ns Railway, .97 Fr R659 & .02 To R11.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT113 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

113 ft end to end, longest span 40 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a girder bridge.

Built193294 years old
Length112.9 ft34.4 m
Daily traffic949counted 2022
Last inspectedNovember 2024every 12 months

Location

StateVirginia
CountySmyth
Location.97 Fr R659 & .02 To R11
CarriesRailroad Drive
CrossesNs Railway
Coordinates36.81263, -81.57414

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length112.9 ft (34.4 m)
Max Span40.0 ft (12.2 m)
Deck Width16.7 ft (5.1 m)
Deck Area175.4 sq m
Main Spans3
Year Built1932

Traffic

Avg Daily Traffic949 (2022)
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000017656

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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