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County Road 21 over Swamp River

Dutchess County, New York · rated Good in the 2025 National Bridge Inventory

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

County Road 21 over Swamp River in Dutchess County, New York, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1988, making it 37 years old at the 2025 inventory.
It carries about 2,597 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 76 of the 333 inventoried bridges in Dutchess County rated good (22.8%); 54 (16.2%) 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


Structure	Prestressed concrete multiple box beam
Length	about 66 ft
Location	at Wingdale
NBI structure number	000000003343040
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Rte 84 over MNRR Beacon Line	2018	52,529	Good
Rte I84 over First Farm Road	1963	48,307	Fair
Rte 44 over Fallkill Creek	1977	43,091	Fair
Rte 44 over Fall Kill	1977	43,091	Good
Rte 44 over Rte 9	1965	38,047	Fair
Rte 9 over Academy Street	1965	37,651	Fair