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Route 83 & 74 over Hockanum River

Tolland County, Connecticut · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Route 83 & 74 over Hockanum River in Tolland County, Connecticut, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1993, making it 32 years old at the 2025 inventory.
It carries about 12,600 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 74 of the 207 inventoried bridges in Tolland County rated good (35.7%); 17 (8.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	7	Good condition


Structure	Continuous concrete culvert
Length	about 27 ft
Location	300 West of West Street
NBI structure number	06294
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Connecticut department of transportation.

Bridge	Built	Vehicles/day	Condition
Interstate-84 over Cider Mill Road	1954	71,600	Fair
Interstate-84 over Skungamaug River	1954	64,200	Fair
Interstate-84 over Willimantic River	1953	58,100	Fair
Interstate-84 over New England Central RR	1953	58,100	Fair
I-84 EB & Ramp 061 over Hockanum River	1981	54,800	Fair
Interstate-84 over Roaring Brook	1940	54,200	Fair