This should say Brewery Bridge 33 (not 23). It is on the Calder & Hebble Navigation.
This may cause confusion and delay an emergency response if an incident is reported as Bridge 23. The CRT helpline and staff may not be able to find the location, or go to the wrong bridge 23, or direct the emergency services to the wrong place.
It is between bridges 31 and 34, and it is shown as Brewery Bridge 33 on the CRT online map at https://canalrivertrust.org.uk/enjoy-the-waterways/canal-and-river-network