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Introduction to DDMS Surveying

DDMS is Highways England’s National Highways’ technical information about the location and condition of all drainage infrastructure on their network.

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The work is usually tendered by the HE Areas, also sometimes known as the Managing Agents and information for the current managing agent for any area can be found online.  There are 13 Areas across England, numbered from 1 to 14 (there is no Area 11) and the areas are now grouped into regions under National Highways.

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Map of the old Highways England Areas and new National Highways Regions.

Herein, we will refer to ‘The Area’ or similar as any of these operational areas.

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