Structure 2602 · New London County, CT

SR 908 Colman ST over I-95 SR 623 & N SR 624

Carries SR 908 Colman ST over I-95 SR 623 & N SR 624, 0.6 Mi N Of Route 85.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT338 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

338 ft end to end, longest span 88 ft: about 5 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.

Built197353 years old
Length337.6 ft102.9 m
Daily traffic10,300counted 2020
Last inspectedApril 2023every 24 months

Location

StateConnecticut
CountyNew London
Location0.6 Mi N Of Route 85
CarriesSR 908 Colman ST
CrossesI-95 SR 623 & N SR 624
Coordinates41.36874, -72.11576

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length337.6 ft (102.9 m)
Max Span87.9 ft (26.8 m)
Deck Width65.3 ft (19.9 m)
Deck Area2047.7 sq m
Main Spans4
Year Built1973

Traffic

Avg Daily Traffic10,300 (2020)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge12

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 Number02602

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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