Structure 1777 · New London County, CT

Interstate-95 Sout over Groton Reservoir

Carries Interstate-95 Sout over Groton Reservoir, 1.2 Mi N Of Route 112.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT723 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

723 ft end to end, longest span 80 ft: about 2.0 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 multi-beam bridge.

Built196462 years old
Length723.1 ft220.4 m
Daily traffic30,500counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateConnecticut
CountyNew London
Location1.2 Mi N Of Route 112
CarriesInterstate-95 Sout
CrossesGroton Reservoir
Coordinates41.36037, -72.04113

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length723.1 ft (220.4 m)
Max Span80.1 ft (24.4 m)
Deck Width55.4 ft (16.9 m)
Deck Area3724.8 sq m
Main Spans9
Year Built1964

Traffic

Avg Daily Traffic30,500 (2020)
Truck Traffic9%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number01777

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.

Nearby Bridges