Structure 200091071S03012 · Caledonia County, VT

I 00091 Ml over I 91 Over Barnet SH

Carries I 00091 Ml over I 91 Over Barnet SH, I 91 Exit 18.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT120 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

120 ft end to end. 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.

Built197650 years old
Length120.1 ft36.6 m
Daily traffic5,800counted 2018
Last inspectedMay 2024every 24 months

Location

StateVermont
CountyCaledonia
LocationI 91 Exit 18
CarriesI 00091 Ml
CrossesI 91 Over Barnet SH
Coordinates44.29875, -72.05714

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span116.1 ft (35.4 m)
Deck Width42.0 ft (12.8 m)
Deck Area468.5 sq m
Main Spans1
Year Built1976

Traffic

Avg Daily Traffic5,800 (2018)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number200091071S03012

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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