#Flood plain zone full

The floodway of the Todd River in Australia’s Northern Territory, for instance, is an ephemeral stream, meaning its channel can be dry for months at a time.īeyond the floodway is the flood fringe. Floodways can sometimes be seasonal, meaning the channel is dry for part of the year. The first is the main channel of the river itself, called the floodway. It stretches from the banks of the river to the outer edges of the valley.Ī floodplain consists of two parts. Information from this web site may not be used for the purposes of any legal disputes.A floodplain (or floodplain) is a generally flat area of land next to a river or stream.The user will indemnify Horizons Regional Council against all claims, loss or damages arising in connection with use of this website or the information provided by it.The user will waive and release Horizons Regional Council from any claims arising from your use of this website or the information provided by it.The user should independently verify the accuracy of any information before taking any action in reliance upon it, i.e. any feature shown on a plan should be physically verified on site prior to any design, construction or other works taking place, property boundaries should be verified by a qualified surveyor.Horizons Regional Council accepts no liability for any error, omission, or inaccuracy of the information or from any use of or reliance on the information provided by this website.Horizons Regional Council does not give and expressly disclaims any warranty as to the accuracy or completeness of the information or its fitness for any purpose.All information should be considered as being illustrative and indicative only. Due care has been taken in providing the information on this website. Use of information from this website is entirely at the users own risk.

This website is a public service and may be used for personal and business purposes. Users are not permitted to copy or republish any substantial amount of the information from this website without the prior written consent of Horizons Regional Council.

This website and the information provided in it are the copyright of Horizons Regional Council.

Please take the time to read the Terms and Conditions as use of the website presumes acceptance by the end user. More detail than is presented here is available on request from Coordinator District Advice, Horizons Regional Council. The information presented here is a cartographic representation features shown may not be in their true location.

Consultation with Coordinator District Advice at Horizons Regional Council is required for advice at a property level for flood hazard.

#Flood plain zone full

Areas of ponding from stormwater and other overland flow sources are not included in the model output, and the modelled extent may not cover the full flooded area for a given event. The intended use for this information is as a planning tool and must not be used in isolation.

Important: The flood information provided only shows river flooding and does not show all the areas that might get wet during an extreme rainfall or flood event. In the areas that have had 1 in 200 year flood modelling completed, the flood extents have been added to the flood plain map. Please note that not all catchments have been modelled due to cost restraints. Horizons has completed flood modelling for some of the region’s catchments where key risks were identified. These models represent a snapshot in time. Subsequent changes to land forms on the flood plains (drains, berms, etc) will affect the utility of these models.

Those presented here have a probability of 0.5, meaning that in any given year there is a 1 in 200 chance that it may occur. This five year project saw significant investment in data acquisition for flood modelling to better provide information to the public and protect people and property.Ī series of flood models were developed where key risks were identified, with various annual return intervals (ARIs). The floods in 2004 were some of the largest in the Manawatū-Whanganui region in recent times. Post-flood analysis identified gaps in knowledge concerning flood risk. To address this, a flood mapping project to identify and quantify the extent of flood hazard was initiated.