Flooding on cycle superhighway 2

MQT on 2015-09-16
Session date: 
September 16, 2015
Question By: 
Darren Johnson
City Hall Greens
Asked Of: 
The Mayor


Constituents have reported significant flooding on the newly-built sections of CS2. Will you ask TfL to investigate whether adequate drainage has been provided and, if not, to ensure that effective drainage is incorporated?


Answer for Flooding on cycle superhighway 2

Answer for Flooding on cycle superhighway 2

Answered By: 
The Mayor

The new Cycle Superhighways will provide an unrivalled cycling network for London and any design or performance issues will be closely monitored by TfL. London experienced unusually high rainfall in late August, with over 40mm of rain within three hours reported in some areas on both 24 and 26 August at a time when we would normally expect to see between 50mm and 60mm in an entire month. TfL is aware that this led to flooding and ponding in some areas across the London road network, including sections of Cycle Superhighway route 2. 

Where drainage issues occur following the opening of a section of Cycle Superhighway TfL will make changes if required.  Specifically on CS2, TfL will be installing additional gullies at the end of September in the areas which suffered from ponding.  At the conclusion of each build, TfL will undertake a full route review to ensure that designs are fit for purpose and that standards have been met.  If these reveal any faults or deficiencies then these will be rectified.