Structure 200089073N04182 · Chittenden County, VT

I 00089 Ml over I 89 Over Lafountain

Carries I 00089 Ml over I 89 Over Lafountain, 0.1 Mi N Exit 15.

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 FT127 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

127 ft end to end, longest span 57 ft. 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.

Built196264 years old
Length127.0 ft38.7 m
Daily traffic39,500counted 2018
Last inspectedJune 2024every 24 months

Location

StateVermont
CountyChittenden
Location0.1 Mi N Exit 15
CarriesI 00089 Ml
CrossesI 89 Over Lafountain
Coordinates44.49526, -73.17327

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length127.0 ft (38.7 m)
Max Span57.1 ft (17.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area507.0 sq m
Main Spans3
Year Built1962

Traffic

Avg Daily Traffic39,500 (2018)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number200089073N04182

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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