Structure 201212000212121 · Washington County, VT

Vt 0100b Alt over Mad River

Carries Vt 0100b Alt over Mad River, 0.6 Mi N Jct. Vt.100.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT100 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

100 ft end to end. 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 multi-beam bridge.

Built20206 years old
Length100.1 ft30.5 m
Daily traffic3,200counted 2018
Last inspectedSeptember 2023every 24 months

Location

StateVermont
CountyWashington
Location0.6 Mi N Jct. Vt.100
CarriesVt 0100b Alt
CrossesMad River
Coordinates44.24544, -72.76955

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length100.1 ft (30.5 m)
Max Span91.9 ft (28 m)
Deck Width33.1 ft (10.1 m)
Deck Area308.1 sq m
Main Spans1
Year Built2020

Traffic

Avg Daily Traffic3,200 (2018)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number201212000212121

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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