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I-95 NB Ramp 277 over Stony Brook

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

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

I-95 NB Ramp 277 over Stony Brook in New London 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 1964, making it 61 years old at the 2025 inventory.
It carries about 4,900 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 121 of the 442 inventoried bridges in New London County rated good (27.4%); 23 (5.2%) 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 30 ft
Location	I-95 NB Exit No. 91
NBI structure number	01799
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Interstate-95 over Latimers Brook	1958	72,700	Fair
Interstate-95 over Lyme Street	1948	69,600	Fair
Interstate-395 over Leffingwell Road	1958	63,200	Fair
Interstate-395 over Trading Cove Brook	1958	63,200	Fair
Interstate-95 over North Bride Brook Road	1958	61,700	Fair
Interstate-95 over Route 161	1958	59,100	Poor