Structure 5641 · Hartford County, CT

Interstate-91 over Route 220

Carries Interstate-91 over Route 220, At Exit 48.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
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 FT127 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

127 ft end to end, longest span 65 ft. 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.

Built1960rebuilt 1987
Length127.0 ft38.7 m
Daily traffic70,000counted 2022
Last inspectedJuly 2024every 24 months

Location

StateConnecticut
CountyHartford
LocationAt Exit 48
CarriesInterstate-91
CrossesRoute 220
Coordinates41.99776, -72.58581

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length127.0 ft (38.7 m)
Max Span65.0 ft (19.8 m)
Deck Width116.8 ft (35.6 m)
Deck Area1377.7 sq m
Main Spans3
Year Built1960 (reconstructed 1987)

Traffic

Avg Daily Traffic70,000 (2022)
Truck Traffic14%
Lanes On Bridge6
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number05641

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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