Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Road design guidance omits flood provision

DESIGN GUIDANCE for roads fails to account for their potential to cause floods, the Department for the Environment Food & Rural Affairs said last week.

DEFRA is reviewing the Design Manual for Roads & Bridges, used in the design of strategic roads. It wants designs to fall in line with a new 20 year flood and coastal risk management strategy.

'A Department for Transport policy document on the impact of climate change on the transport network published in January identifies the maintenance and design of urban roads as a key area that needs to be improved in order to deal with the impact of flooding, ' says a DEFRA consultation document published last week.

DEFRA'S Making Space for Water document also proposes that new design guidance for non-strategic roads is developed. It asks respondents to comment on whether this is necessary and who should produce and maintain the guidance.

DEFRA wants to ensure that all UK roads are designed to minimise the risk of flooding.

It also suggests that minor roads are to be used as flood channels, which will require design changes such as raising kerb heights (NCE 7 July).

These roads could then acts as flood conduits and be used to move water from flooded areas to natural watercourses.

Decisions on flooding urban roads would be made by an integrated drainage management team made up of the local council, the Environment Agency, sewerage undertakers and private landowners.

Disruption to local transport services would have to be tolerated if flooding roads can be justified.

INFOPLUS To download the consultation document go to www.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.