Structure 774B · New Haven County, CT

Route 15 SB over Wintergreen AVE & Brook

Carries Route 15 SB over Wintergreen AVE & Brook, 0.7 Mi N Of Route 69.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 6/9

70 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 rigid-frame bridge.

Built194977 years old
Length69.9 ft21.3 m
Daily traffic39,960counted 2023
Last inspectedMay 2023every 24 months

Location

StateConnecticut
CountyNew Haven
Location0.7 Mi N Of Route 69
CarriesRoute 15 SB
CrossesWintergreen AVE & Brook
Coordinates41.34707, -72.96805

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length69.9 ft (21.3 m)
Max Span69.9 ft (21.3 m)
Deck Width39.0 ft (11.9 m)
Deck Area253.5 sq m
Main Spans1
Year Built1949

Traffic

Avg Daily Traffic39,960 (2023)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00774B

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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