Written Question·Department for Transport·UIN 104956
Roads: Flood Control and Pollution
Tabled: 12 January 2026
Answered: 15 January 2026
Named DayQuestion
Sarah Dyke
Liberal Democrat — Glastonbury and Somerton
To ask the Secretary of State for Transport, what steps National Highways is taking to record the potential impact of historic drainage networks associated with major roads on (a) downstream flooding and (b) river pollution.
Answer
Simon LightwoodNational Highways’ (NH) standard practice is to report all flood events on the Strategic Road Network (SRN). This includes flood events within 200 metres of the SRN, or within 500 metres of a NH drainage asset. All such flood events are recorded in NH’s d...
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