Life-threatening emergencies on the river:
Call 999 and ask for the Coastguard
For near miss, safety observations and incident reporting click below
Clearance Heights identified in BOLD refer to the main navigational arch.
* Refers to headway above maintained water level.
** Refers to minimum clearance to bottom of cable car gondolas, when loaded and at the bottom of the catenary.
Arches are numbered from the north shore to south shore.
Further information on all the bridges can be found in the PLA "Mariners' Guide to Bridges on the Tidal Thames".
Headway boards are provided at Hammersmith. Click here for details.
Minimum Headway of NAVIGABLE ARCH in METRES above:
Minimum Headway of NAVIGABLE ARCH in METRES above: