You must turn on the browser location services to get the route from your current location to the sign, and the distance (as the crow flies) from your current location to the sign.
After activating location services, refresh the page.
On the sign:
the emblem of London CITY OF LONDON BLACKFRIARS BRIDGE
The bridge passing over the Thames River was opened for traffic in 1869. The length of the bridge is 281 meters and the width is 32 meters. The bridge replaced a previous bridge built in 1769.
Another sign located in the center of the bridge also appears on the website Click for sign's details