Structure 200 · New Haven County, CT

Interstate-95 over Granite Road

Carries Interstate-95 over Granite Road, 2.6 Mi S Of Route 77.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

50 ft end to end. Lengths and the car 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.

Built1958rebuilt 1995
Length49.9 ft15.2 m
Daily traffic59,500counted 2020
Last inspectedOctober 2023every 24 months

Location

StateConnecticut
CountyNew Haven
Location2.6 Mi S Of Route 77
CarriesInterstate-95
CrossesGranite Road
Coordinates41.29722, -72.73704

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length49.9 ft (15.2 m)
Max Span44.9 ft (13.7 m)
Deck Width103.7 ft (31.6 m)
Deck Area480.3 sq m
Main Spans1
Year Built1958 (reconstructed 1995)

Traffic

Avg Daily Traffic59,500 (2020)
Truck Traffic10%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number00200

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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