Structure 1731 · New Haven County, CT

SR 845 (chase Park over Interstate 84 & Ramp 053

Carries SR 845 (chase Park over Interstate 84 & Ramp 053, Chase Prkwy At I-84 Ex 18.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
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 FT230 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

230 ft end to end, longest span 112 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.

Built196561 years old
Length230.0 ft70.1 m
Daily traffic15,200counted 2021
Last inspectedApril 2024every 24 months

Location

StateConnecticut
CountyNew Haven
LocationChase Prkwy At I-84 Ex 18
CarriesSR 845 (chase Park
CrossesInterstate 84 & Ramp 053
Coordinates41.54808, -73.06762

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length230.0 ft (70.1 m)
Max Span111.9 ft (34.1 m)
Deck Width57.7 ft (17.6 m)
Deck Area1233.8 sq m
Main Spans2
Year Built1965

Traffic

Avg Daily Traffic15,200 (2021)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01731

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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