Structure 1174 · New Haven County, CT

Interstate 84 WB over Route 63

Carries Interstate 84 WB over Route 63, 1 Mi S Of Int 63 & 64.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT198 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

198 ft end to end, longest span 100 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
Length198.2 ft60.4 m
Daily traffic31,500counted 2021
Last inspectedJanuary 2023every 24 months

Location

StateConnecticut
CountyNew Haven
Location1 Mi S Of Int 63 & 64
CarriesInterstate 84 WB
CrossesRoute 63
Coordinates41.53606, -73.08695

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length198.2 ft (60.4 m)
Max Span100.1 ft (30.5 m)
Deck Width43.6 ft (13.3 m)
Deck Area803.3 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic31,500 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge4

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 Number01174

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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