Structure 3081 · Middlesex County, CT

Interstate-91 NB over North Road

Carries Interstate-91 NB over North Road, .57 Mi North Of Route 372.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT130 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

130 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.

Built1965rebuilt 1994
Length129.9 ft39.6 m
Daily traffic58,900counted 2019
Last inspectedJanuary 2023every 24 months

Location

StateConnecticut
CountyMiddlesex
Location.57 Mi North Of Route 372
CarriesInterstate-91 NB
CrossesNorth Road
Coordinates41.61134, -72.69911

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length129.9 ft (39.6 m)
Max Span57.1 ft (17.4 m)
Deck Width55.4 ft (16.9 m)
Deck Area669.2 sq m
Main Spans3
Year Built1965 (reconstructed 1994)

Traffic

Avg Daily Traffic58,900 (2019)
Truck Traffic9%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number03081

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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