Structure 3039 · New Haven County, CT

Interstate-91 SB over Interstate-95 Ramp 317

Carries Interstate-91 SB over Interstate-95 Ramp 317, 0.3 Mi N Of I-95.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT131 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

131 ft end to end. 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.

Built201313 years old
Length130.9 ft39.9 m
Daily traffic31,200counted 2020
Last inspectedApril 2023every 24 months

Location

StateConnecticut
CountyNew Haven
Location0.3 Mi N Of I-95
CarriesInterstate-91 SB
CrossesInterstate-95 Ramp 317
Coordinates41.30267, -72.91432

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length130.9 ft (39.9 m)
Max Span120.7 ft (36.8 m)
Deck Width74.8 ft (22.8 m)
Deck Area909.7 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic31,200 (2020)
Truck Traffic14%
Lanes On Bridge3
Lanes Under Bridge1

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number03039

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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