Structure 1230 · New Haven County, CT

Austin Road over Interstate 84

Carries Austin Road over Interstate 84, I-84 EB Exit 25a.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT158 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

158 ft end to end, longest span 76 ft: about 2 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.

Built1961rebuilt 2006
Length158.1 ft48.2 m
Daily traffic11,900counted 2023
Last inspectedOctober 2024every 24 months

Location

StateConnecticut
CountyNew Haven
LocationI-84 EB Exit 25a
CarriesAustin Road
CrossesInterstate 84
Coordinates41.54057, -72.97519

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length158.1 ft (48.2 m)
Max Span75.8 ft (23.1 m)
Deck Width63.6 ft (19.4 m)
Deck Area935.1 sq m
Main Spans2
Year Built1961 (reconstructed 2006)

Traffic

Avg Daily Traffic11,900 (2023)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01230

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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