CORRECTION: the bridge that littleriverphil shared is NOT the same location as in my postcard.
The railroad bridge is still there and in use by Pan Am (ex-Boston & Maine) and Amtrak. The abutments of the trolley and road bridges can still be seen. A little searching around will confirm whether or not those 2 were washed away during one of the 3 large storms of the late 1930s. I am pretty sure at least one was.