Structure 4273 · Tolland County, CT

SR 533 (tunnel Rd) over Interstate-84

Carries SR 533 (tunnel Rd) over Interstate-84, 0.3 Mile South Of RTE 30.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT276 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

276 ft end to end, longest span 135 ft: about 4 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.

Built197848 years old
Length275.9 ft84.1 m
Daily traffic4,900counted 2023
Last inspectedJuly 2024every 24 months

Location

StateConnecticut
CountyTolland
Location0.3 Mile South Of RTE 30
CarriesSR 533 (tunnel Rd)
CrossesInterstate-84
Coordinates41.83238, -72.46666

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length275.9 ft (84.1 m)
Max Span134.8 ft (41.1 m)
Deck Width67.6 ft (20.6 m)
Deck Area1732.5 sq m
Main Spans2
Year Built1978

Traffic

Avg Daily Traffic4,900 (2023)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number04273

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.

Nearby Bridges