I'd say the build time for this location is off.
StreetView shows the Warren pictured here in two previous images, in 2012 and 2015. It goes from a very rusted color in the 2012 image to the current metallic color in the 2015 image.
That, in turn, can be explained by a 2013 repair job, which the NBI gives for this location. http://bridgereports.com/1387040
Further, they also give a 1991 build year, which would explain the Warren showing up in both the StreetView images and in the picture on here.
The only way a 2018-19 build checks out is if the Warren was replaced after that picture was taken.
I came across this postcard of a bridge on Cauterskill Road.
It might the predecessor of the current bridge.