Structure 3662 · New London County, CT

Bridge ST #1 over Amtrak

Carries Bridge ST #1 over Amtrak, 0.3 Mi W Of US Route 1.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT184 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

184 ft end to end, longest span 98 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.

Built1936rebuilt 1996
Length184.1 ft56.1 m
Daily traffic2,200counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateConnecticut
CountyNew London
Location0.3 Mi W Of US Route 1
CarriesBridge ST #1
CrossesAmtrak
Coordinates41.36038, -72.07193

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length184.1 ft (56.1 m)
Max Span98.1 ft (29.9 m)
Deck Width43.6 ft (13.3 m)
Deck Area746.1 sq m
Main Spans3
Year Built1936 (reconstructed 1996)

Traffic

Avg Daily Traffic2,200 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerUnknown
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number03662

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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