Structure 25843 · Montgomery County, VA

S. Main St./460 over Rte. 460 By-pass

Carries S. Main St./460 over Rte. 460 By-pass, 460bus Over 460 By-pass.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT783 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

783 ft end to end, longest span 174 ft: about 2.2 football fields. Lengths and the semi-truck 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 multi-beam bridge.

Built200125 years old
Length783.1 ft238.7 m
Daily traffic22,896counted 2022
Last inspectedNovember 2023every 24 months

Location

StateVirginia
CountyMontgomery
Location460bus Over 460 By-pass
CarriesS. Main St./460
CrossesRte. 460 By-pass
Coordinates37.19387, -80.40298

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length783.1 ft (238.7 m)
Max Span173.9 ft (53 m)
Deck Width99.7 ft (30.4 m)
Deck Area7256.5 sq m
Main Spans7
Year Built2001

Traffic

Avg Daily Traffic22,896 (2022)
Truck Traffic1%
Lanes On Bridge5
Lanes Under Bridge12

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000025843

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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