Structure 4382 · New Haven County, CT

Sr721-no Main ST over Route 8

Carries Sr721-no Main ST over Route 8, .8m N Of RT 67 (ex 22 Rt8.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT251 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

251 ft end to end, longest span 126 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.

Built198145 years old
Length251.0 ft76.5 m
Daily traffic1,800counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateConnecticut
CountyNew Haven
Location.8m N Of RT 67 (ex 22 Rt8
CarriesSr721-no Main ST
CrossesRoute 8
Coordinates41.40638, -73.06932

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length251.0 ft (76.5 m)
Max Span126.0 ft (38.4 m)
Deck Width53.5 ft (16.3 m)
Deck Area1247.0 sq m
Main Spans2
Year Built1981

Traffic

Avg Daily Traffic1,800 (2021)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number04382

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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