Structure 3191A · New Haven County, CT

Interstate-84 EB over I-84WB Rte8 Naugatuck Rv

Carries Interstate-84 EB over I-84WB Rte8 Naugatuck Rv, I-84 Exit 20.

Overall conditionPoor

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,766 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 4/9

3,766 ft end to end, longest span 150 ft: about 10 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 girder bridge.

Built196759 years old
Length3766.1 ft1147.9 m
Daily traffic63,000counted 2021
Last inspectedSeptember 2022every 24 months

Location

StateConnecticut
CountyNew Haven
LocationI-84 Exit 20
CarriesInterstate-84 EB
CrossesI-84WB Rte8 Naugatuck Rv
Coordinates41.55176, -73.04805

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length3766.1 ft (1147.9 m)
Max Span149.9 ft (45.7 m)
Deck Width35.4 ft (10.8 m)
Deck Area12397.3 sq m
Main Spans14
Year Built1967

Traffic

Avg Daily Traffic63,000 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number03191A

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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