Page 1 of 2 Sharyn Westlake From: [email protected]Sent: Friday, 28 September 2012 10:18 a.m. To: Sharyn Westlake Cc: Susan Borrer; [email protected]; Jan Van Der Vliet Subject: Te Moana Floodway Information You have received 3 files. Use the secure links below to download. Hello Sharyn, Apologies for the delay in providing this information and we acknowledge that it may be too late to be accounted for in GW's evidence. Further to our meeting on 29 August, please follow the link provided to download the below documents (the mapping is a 17MB file): 1. Water level and flow long sections down the Waimeha Stream (not down the floodway where the majority of the breach flow passes) for the pre/post overflow scenario. 2. Flood mapping & difference plots. To clarify the title, breach flow is equivalent to Q200yr in the VVaikanae with the stopbank breaching at Chillingworth, and with a Q100yr storm in the Waimeha catchment. Please note that s ubsequent to the modelling, the stopbank has also been lengthened at the upstream end towards Te Moana Road to cut off the small flow bypassing the end of the stop bank that can be seen on the maps. The maps also do not include the mitigation proposed to address the increases at Puriri Road (bottom left on the difference map) and to Jonathan Smith's property (top right on the difference maps) as the maps were produced prior to addressing these issues. Regards lain Smith M2PP Stormwater Design Level 2, 17-21 Whitmore Street, PO Box 8044, Wellington 6143 Ph: 04 473 7551 Mobile: 027 296 3310 Email: [email protected]Download Files Available until: 28 October 2012 Dc w ' re: QCCC_' — a +1.-- w_L 66.65 KB, Fingerprint: b363ea5053c48177543179cd7002c2ac Download File: QCCI )verflow Longsection.pdf 4/10/2012
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Page 1 of 2
Sharyn Westlake
From: [email protected] Sent: Friday, 28 September 2012 10:18 a.m. To: Sharyn Westlake Cc: Susan Borrer; [email protected] ; Jan Van Der Vliet Subject: Te Moana Floodway Information
You have received 3 files. Use the secure links below to download.
Hello Sharyn,
Apologies for the delay in providing this information and we acknowledge that it may be too late to be accounted for in GW's evidence.
Further to our meeting on 29 August, please follow the link provided to download the below documents (the mapping is a 17MB file):
1.Water level and flow long sections down the Waimeha Stream (not down the floodway where the majority of the breach flow passes) for the pre/post overflow scenario.
2. Flood mapping & difference plots. To clarify the title, breach flow is equivalent to Q200yr in the VVaikanae with the stopbank breaching at Chillingworth, and with a Q100yr storm in the Waimeha catchment.
Please note that s ubsequent to the modelling, the stopbank has also been lengthened at the upstream end towards Te Moana Road to cut off the small flow bypassing the end of the stop bank that can be seen on the maps.
The maps also do not include the mitigation proposed to address the increases at Puriri Road (bottom left on the difference map) and to Jonathan Smith's property (top right on the difference maps) as the maps were produced prior to addressing these issues.
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