Key Bridge was being built between Georgetown and Rosslyn. Construction started in 1917 and completed in 1923.
Below is a shot from Georgetown looking towards the Washington Monument, which you can see in the distance.
The Construction of Key Bridge Connecting Georgetown and Rosslyn
Didn’t they tear down Francis Scott Key’s Georgetown house to make way for Key Bridge?
The photo was taken from the C&O canal bridge. You can see a part of a timber in the bottom of the frame.