Structure 1469B · Hartford County, CT

Interstate-91 SB over Csorr SR 598wb & Tr803

Carries Interstate-91 SB over Csorr SR 598wb & Tr803, Dutch Point Viaduct.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,800 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

1,800 ft end to end, longest span 152 ft: about 5.0 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.

Built1964rebuilt 2011
Length1800.2 ft548.7 m
Daily traffic50,700counted 2019
Last inspectedFebruary 2023every 24 months

Location

StateConnecticut
CountyHartford
LocationDutch Point Viaduct
CarriesInterstate-91 SB
CrossesCsorr SR 598wb & Tr803
Coordinates41.75952, -72.66523

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1800.2 ft (548.7 m)
Max Span151.9 ft (46.3 m)
Deck Width47.6 ft (14.5 m)
Deck Area7956.1 sq m
Main Spans6
Year Built1964 (reconstructed 2011)

Traffic

Avg Daily Traffic50,700 (2019)
Truck Traffic14%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number01469B

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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