Page 27 - Newham SuDS DESIGN & EVALUATION GUIDE

6.0 Local SuDS requirements for Newham has a high rate of new development
Local SuDS requirements
and SuDS are a requirement for all major
The London Borough of Newham
development and many SuDS schemes have
now been implemented through the planning
process. In addition, Newham, through the

Landscape Character There are some notable areas of open space LLFA’s functions, implements its own SUDS
including West Ham Park, Beckton District schemes on public highways and other
The London Borough of Newham (LBN), Park and Thames Barrier Park, but the council owned land (See Fig.2) Local SuDS requirements
located on the north side of the River majority of the Borough is densely developed
Thames, encompasses an area of 3,600 with predominantly impermeable surface
hectares bound on three sides by tidal creating conditions for flash flooding and
watercourses. The River Lee and the River water ponding in low lying area.
Roding, both flowing south, form the western Legend THIS DRAWING MAY BE USED ONLY FOR
THE PURPOSE INTENDED
and the eastern boundary with the River NORTH Borough Administrative Boundary
Sewage Treatment Works Locations
Pumping Stations
WALTHAM FOREST REDBRIDGE Combined Sewer Overflow Locations
Thames to the south. Other Fig.3 Newham Bedrock Geology
Pumping Stations
Combined Sewer
The Royal Docks located in the south of the Surface Water Sewer
Other Sewers
Borough on historical River Thames riverside
marshes collectively form the largest Notes
1. Foul drainage network not displayed;
BARKING AND DAGENHAM 2. Drainage networks with a diameter less than 150mm not
displayed.
enclosed docks in the world and a major Thames Water. Any queries relating to connectivity should go
3. The pipe network shown on this drawing is as supplied by
directly to Thames Water.
London Borough of
feature of the Borough. The Thames Barrier Newham
Fig.2 One of the 11 SuDS beds delivered by
mediates tidal influence on the River Thames © Crown Copyright. All rights reserved. GLA (LA100032379) 2011
Surface Water Management Plan
Newham across the Stratford Gyratory
and the Lea; the Barking Creek Barrier Covers all data that has been supplied and distributed under
license for the Drain London project.
Digital geological data reproduced from British Geological Survey
(c) NERC Licence No 2011/053A
21 protects the River Roding. Locks regulates TOWER HAMLETS Scale at A3 Thames Water Sewer Network Approved by 22
Date
Drawn by
S.TURNBULL
1:30,000
07/04/2011
S.IP
water level within the Royal docks. Filepath: L:\Environment\zwet\CS046913_DrainLondon_Tier2\Group4\ARC\mxds\GP4_Newham_Fig9_TWSewerNetwork.mxd Consultants Local Geology
Capita Symonds
Level Seven,
52 Grosvenor Gardens,
Belgravia,
London
SW1W 0AU
Newham’s bedrock geology is mostly
The borough’s terrain generally slopes in a Drain London Programme Board Members
represented by London Clay (Thames Group)
southerly direction towards the River Thames GREENWICH 0.25 0.5 1 1.5 2 Kilometres FIGURE 8
0
and the Royal Docks. The borough is Fig.1 Newham Sewer Infrastructure: combined and Lambeth Group layers denoting spatially
(Brown); Stormwater (Blue)
dissected by artificial landforms variable permeability (very low to moderate).
corresponding to railways and other Newham has been assessed as having the In the southern aspect of the borough are
infrastructures (e.g. the Greenway - Norther lowest sewer capacity of all 33 London notable two contiguous formations of Thanet Fig.4 Newham Superficial Deposits Geology
Outfall Sewer). These features can act as Borough (Thames Water’s assessment). Sand and White Chalk associated with high
barriers to or conveyors of overland runoff Newham’s overall sewer infrastructure, as a to very high permeability. (Fig.3) Flood Risk Areas in the Borough
and determine conditions for localised whole is nearing capacity and projected to Superficial deposits are largely dominated by
flooding during rainstorms. There are extensive areas of made ground
be over capacity within next 20-30 years. river terrace deposits (characteristically free found across the borough, some identified on
Newham’s urban fabric comprises traditional More than half of Newham’s sewer draining) found in the central- northern map (Fig 5) others not on record.
Victorian terraces (north and east) with an infrastructure consists of a historical aspect of the borough. Alluvium (with a more
increasing mix of high density mixed-use combined sewer system denoting very low variable degree of permeability: low to Significant land contamination issues, from
development replacing disused or underused capacity which makes the borough medium) dominates along the borough’s historical industrial use, can be found across
industrial land in the south and west as well particularly prone to surface water flooding eastern and western boundaries and in the the borough. Water table denotes high
as a number of post-war housing estates. during rainstorms. southern aspect of the borough. (Fig. 4) degree of variability; in general it is likely to
London Borough of Newham SuDS D & E Guide © 2018 McCloy Consulting & Robert Bray Associates London Borough of Newham SuDS D & E Guide © 2018 McCloy Consulting & Robert Bray Associates