There was a time when hundreds of bridges were built over a time period of a few years during the late 1960s when the highway system was constructed. But nowadays bridge construction has slowed, with mostly replacement bridges built, maybe with the exception of Exit 3 of Northway. This map shows bridges built across New York in the past five years.

This map shows NYS DOT-inspected bridges in Southern Albany and details about the status of the bridge, age, etc.

Data Source: NYSDOT, Bridges. https://gis.dot.ny.gov/hostingny/rest/services/NYSDOT_Structures/MapServer/