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Congress Street #2 over Mill River

Fairfield County, Connecticut · rated Poor in the 2025 National Bridge Inventory

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

Congress Street #2 over Mill River in Fairfield County, Connecticut, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1935, making it 90 years old at the 2025 inventory.
It carries about 6,505 vehicles a day (traffic count year 2023).
Its listed owner is a town or township highway agency.
It is one of 33 of the 862 inventoried bridges in Fairfield County rated poor (3.8%); 33 (3.8%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 35 ft
Location	0.5 Mi W of Route 59
NBI structure number	04196
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Interstate-95 over Kings Hwy-goodwives Rv	1952	154,700	Fair
Interstate-95 over Bostwick Ave	2006	154,600	Fair
Interstate-95 over Bport Harbor Rt 130 Mnrr	1959	153,100	Fair
Interstate-95 over Norwalk Rv Hendricks Ave	1957	147,500	Fair
Interstate-95 over Route 136	1952	143,900	Fair
Interstate-95 over Metro North RR & Station	1958	143,300	Fair