The original Kokugikan seen in the 1932 image was built in 1909. A new Kokugikan was built in Yokoami in 1985.
The Shuto Expressway C1 Inner Circular Route now runs above the bridge.
I visited the Imperial Palace on the day of general visitation celebrating the new year (一般参賀) on January 2nd. For this reason, I could not take a picture from the same angle.
The bridge was under maintenance.