Structure 327 · New Haven County, CT

US Route 1 over Housatonic River

Carries US Route 1 over Housatonic River, At Stratford Town Line.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT877 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

877 ft end to end: about 2.4 football fields. 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 bascule bridge (drawn closed).

Built1921rebuilt 2006
Length877.0 ft267.3 m
Daily traffic16,500counted 2022
Last inspectedOctober 2022every 24 months

Location

StateConnecticut
CountyNew Haven
LocationAt Stratford Town Line
CarriesUS Route 1
CrossesHousatonic River
Coordinates41.20029, -73.11049

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length877.0 ft (267.3 m)
Max Span183.1 ft (55.8 m)
Deck Width62.0 ft (18.9 m)
Deck Area5052.0 sq m
Main Spans1
Year Built1921 (reconstructed 2006)

Traffic

Avg Daily Traffic16,500 (2022)
Truck Traffic6%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number00327

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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