Re: [Talk-GB] Mapping Attenuation Ponds / Sustainable Drainage schemes

2017-05-07 Thread Jez Nicholson
The Council owned ponds/basins might be mapped in Environment Agency's
Flood Storage Areas, but Steve is more after private Sustainable Urban
Drainage Systems (SUDS). These may be difficult to spot, as they are often
landscaped ponds. AFAIK there isn't any register, but could possibly be
gleaned from planning permissions. I would welcome other info/thoughts.
This is part of what i do for my day job.

Regards,
   Jez

On Sun, 7 May 2017 17:35 Chris Hill,  wrote:

> [not cross posted]
>
> I have mapped some largish attenuation ponds as landuse=basin,
> basin=detention here http://www.openstreetmap.org/#map=16/53.7810/-0.4483
>
> These are specifically described by the council, who commissioned them, as
> flood alleviation. These are supposed to work by quickly filling during
> heavy rainfall and slowly emptying into the conventional drainage through a
> restricted outfall thus spreading out the rainfall and preventing flooding.
>
> --
> cheers
> Chris Hill (chillly)
>
>
> On 07/05/2017 17:22, Steve Brook wrote:
>
> Many new UK housing estates are required to be built with Attenuation
> Ponds / Sustainable Drainage schemes as part of their development. These
> are to control rain water runoff during storms and consist of a pond
> surrounded by an embankment with a controlled release structure to slow
> down drainage of the water to the river system.
>
>
>
> The relevant features might be
>
> · Low or normal water level of pond
>
> · High water level or top of embankment
>
> · Land use/vegetation between low/high water marks is water
> tolerant/marsh plants
>
> · Structures for water input and output – often brickwork and
> filter screens round a pipe.
>
>
>
> Has anyone any experience of mapping and tagging such a structure?
>
> Are there any examples of where this has been done?
>
>
>
> Steve
>
>
>
>
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Re: [Talk-GB] Mapping Attenuation Ponds / Sustainable Drainage schemes

2017-05-07 Thread Ed Loach
That seems to be what I settled on too, e.g. 
http://www.openstreetmap.org/way/189511931

 

Ed

 

From: Chris Hill [mailto:o...@raggedred.net] 
Sent: 07 May 2017 17:35
To: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] Mapping Attenuation Ponds / Sustainable Drainage schemes

 

[not cross posted]

I have mapped some largish attenuation ponds as landuse=basin, basin=detention 
here http://www.openstreetmap.org/#map=16/53.7810/-0.4483

These are specifically described by the council, who commissioned them, as 
flood alleviation. These are supposed to work by quickly filling during heavy 
rainfall and slowly emptying into the conventional drainage through a 
restricted outfall thus spreading out the rainfall and preventing flooding.

-- 
cheers
Chris Hill (chillly)

 

On 07/05/2017 17:22, Steve Brook wrote:

Many new UK housing estates are required to be built with Attenuation Ponds / 
Sustainable Drainage schemes as part of their development. These are to control 
rain water runoff during storms and consist of a pond surrounded by an 
embankment with a controlled release structure to slow down drainage of the 
water to the river system.  

 

The relevant features might be

*   Low or normal water level of pond
*   High water level or top of embankment
*   Land use/vegetation between low/high water marks is water 
tolerant/marsh plants
*   Structures for water input and output – often brickwork and filter 
screens round a pipe.

 

Has anyone any experience of mapping and tagging such a structure? 

Are there any examples of where this has been done?

 

Steve

 






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Re: [Talk-GB] Mapping Attenuation Ponds / Sustainable Drainage schemes

2017-05-07 Thread Chris Hill

[not cross posted]

I have mapped some largish attenuation ponds as landuse=basin, 
basin=detention here http://www.openstreetmap.org/#map=16/53.7810/-0.4483


These are specifically described by the council, who commissioned them, 
as flood alleviation. These are supposed to work by quickly filling 
during heavy rainfall and slowly emptying into the conventional drainage 
through a restricted outfall thus spreading out the rainfall and 
preventing flooding.


--
cheers
Chris Hill (chillly)


On 07/05/2017 17:22, Steve Brook wrote:


Many new UK housing estates are required to be built with Attenuation 
Ponds / Sustainable Drainage schemes as part of their development. 
These are to control rain water runoff during storms and consist of a 
pond surrounded by an embankment with a controlled release structure 
to slow down drainage of the water to the river system.


The relevant features might be

·Low or normal water level of pond

·High water level or top of embankment

·Land use/vegetation between low/high water marks is water 
tolerant/marsh plants


·Structures for water input and output – often brickwork and filter 
screens round a pipe.


Has anyone any experience of mapping and tagging such a structure?

Are there any examples of where this has been done?

Steve



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[Talk-GB] Mapping Attenuation Ponds / Sustainable Drainage schemes

2017-05-07 Thread Steve Brook
Many new UK housing estates are required to be built with Attenuation Ponds
/ Sustainable Drainage schemes as part of their development. These are to
control rain water runoff during storms and consist of a pond surrounded by
an embankment with a controlled release structure to slow down drainage of
the water to the river system.  

 

The relevant features might be

. Low or normal water level of pond

. High water level or top of embankment

. Land use/vegetation between low/high water marks is water
tolerant/marsh plants

. Structures for water input and output - often brickwork and filter
screens round a pipe.

 

Has anyone any experience of mapping and tagging such a structure? 

Are there any examples of where this has been done?

 

Steve

 

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