Structure 200089052N04112 · Chittenden County, VT

I 00089 Ml over I 89 Over TH No 14

Carries I 00089 Ml over I 89 Over TH No 14, 4.8 Mi S Exit 11.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT187 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

187 ft end to end, longest span 62 ft: about 3 semi-trucks nose to tail. 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.

Built196462 years old
Length187.0 ft57 m
Daily traffic28,200counted 2018
Last inspectedMay 2024every 24 months

Location

StateVermont
CountyChittenden
Location4.8 Mi S Exit 11
CarriesI 00089 Ml
CrossesI 89 Over TH No 14
Coordinates44.38553, -72.93521

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length187.0 ft (57 m)
Max Span62.0 ft (18.9 m)
Deck Width35.1 ft (10.7 m)
Deck Area609.9 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic28,200 (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 Number200089052N04112

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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