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SR636 Briggs St over I-95&sr623+641&i-95 310

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

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

SR636 Briggs St over I-95&sr623+641&i-95 310 in New London County, Connecticut, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1973, making it 52 years old at the 2025 inventory.
It carries about 3,400 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 298 of the 442 inventoried bridges in New London County rated fair (67.4%); 23 (5.2%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 365 ft
Location	0.39 Mi S of Route 32 Int
NBI structure number	02603
Condition class	Fair

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