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 Creswick floods: Residents question creek tree planting 

Creswick floods: Residents question creek tree planting

07 Sep, 2010 12:26 AM
AS THE clean-up effort gathered pace in Creswick, residents began asking whether man-made conditions could have exacerbated the floods.

Some residents believe tree planting in the Creswick Creek may have impeded the water's flow and intensified the flood on the weekend.

The council will begin to investigate whether tree planting in the waterways is worsening the flood.

"Council is aware of community questions about the Creswick Creek following the floods and will be working with the relevant government authorities responsible for the management of our waterways to look at the issues," Hepburn mayor Janine Booth said.

But Creswick resident Barry Yates said locals had been concerned about tree planting in the creek for several years.

He said many residents believed trees planted in the creek had caught debris washed down in the floods, causing the creek to flow into the town.

"It's a reasonably general consensus with a lot of people that I've spoken to," he said.

Another Creswick resident, who declined to be named, said tree planting had narrowed the creek, disrupting its flow.

"There's no doubt that the narrowing of a waterway is going to create a problem," he said.

According to Hepburn Shire Council figures, 133 properties were affected by the flooding in Creswick, Clunes, Allendale and Kingston.

Community recovery centres had been set up in Creswick and Clunes, which will operate on alternate days until the end of the week.

Yesterday large skips were taken to Creswick and Clunes for residents to dump household items destroyed by the floods.

However, it was not known how many houses were rendered uninhabitable by the floodwaters.

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I submitted a post yesterday in regards to this topic but it was not published. My thoughts are with the residents and their families however, I cannot sit back and watch these people claim that the tree plantings are to blame for the flooding. When we alter catchments by covering them with housing, roads etc we cause the water to run into the creeks much quicker than if it landed on soil. We need to look at ways to slow the water getting into the creeks ather than clearing the vegetation on the banks that was planted to ease erosion, act as habitat for wildlife and to replace the willows that do change stream flows. We cannot continue to destroy the environment to suit ourselves as we have in the past. This was a large rain event that has caused flooding in many catchments, not just upstream of plantings along creeklines
Posted by sick of redneck ideas, 7/09/2010 9:21:28 AM, on The Ballarat Courier
I believe the current residents of Creswick are correct in thinking that the tree planting along the creek was a major contributor to the recent flood, in the past the Shire of Creswick used to clean out the Creek, and long term or former residents will remember the late Gill Taylor who was the Shire grader operator then, would go along the creek edges and clean out vegetation and silt build up, how long is it since the current shire did any of this. I wonder if the Clunes Creek properties around there bowling green area were flooded as much as Creswick? (Seeing in the past that they had their creek cleaned amongst great controversy?
Posted by Former Creswick Resident, 7/09/2010 10:07:02 AM, on The Ballarat Courier
After my comments in yesterdays paper they decided to do a story on it i see! Well you dont need to be a rhodes scholar to work out if there is something impeding the flow of the creek that it will help to bank it up. The trees should not have been planted so close to the creek bed, debris build up and along with the existing trees slow the flow and cause the water to build up. The problem lies in the direction given to councils from government who have a vested interest in promoting the "it will never rain again / warming climate crap" How about listening to local knowledge for a change?
Posted by mick, 7/09/2010 11:15:00 AM, on The Ballarat Courier
Well well, someone calling people rednecks if they dont agree with their views on the creek blockage. Yes mr redneck i agree that water runs off faster with solid surfaces usually, but in this case that had no bearing as the ground has been saturated and the rate the the rain was enough to provide run off in even dry conditions. Trees do not naturally grow in the bed of creeks, they grow around the outsides where they do not get washed away. Putting anything in the bed of a creek will slow it down, a ton of trees will do this. We all like to have trees growing, but they should be in the right spots further away from the watercourse.
Posted by nathan, 7/09/2010 12:38:57 PM, on The Ballarat Courier
Removal of vegetation from waterways in any catchment of any geomorphology creates erosion (which is prevalent around Creswick), sediment deposition and pool infilling. When the pools fill up - hello the flooding is back. Water Quantity = Area X Velocity (Q=AV). We cannot control catchment Area or the Quantity of rainfall. To reduce flooding requires 2 things. Slow down the water upstream of town where catchment clearing has led to increased runoff volume and velocity and slow down the water in town where the increased area of impervious surfaces has increased runoff volume and velocity. What does that mean? Answer: strategic restoration of the catchment and Water Sensitive Urban Design (e.g. compensating basins and diversions).
Posted by Q, 7/09/2010 1:15:03 PM, on The Ballarat Courier
nathan, if you look at natural watercourses they do have vegetation within the watercourse as well as along the margins. when the creek was replanting it was done strategically so that the plants within the creekline were those that naturally occur there such as bottlebrushes and tea tree. these fold under high water flows. if there are more solid trees within the creekline they are most likely willows which should be removed or natural regeneration which could be assessed as well. it is not advisable to completely clear streams or severe erosion can occur. it is not a matter of me calling people names because they disagree, but rather because their ideas are antiquated and narrow minded. the nccma has trained staff to look at these things rather than just speculating about what they think would help
Posted by sick of redneck ideas, 7/09/2010 4:59:36 PM, on The Ballarat Courier
what a lot of rubbish from the above poster, how about getting out of your "trained" ways and get some practical experience. Trees do not grow in the creek bed, yes they grow around it, but not in it. To me it looks like some wattles growing in the creek, they are quite tall and in large numbers, this is not natural in this area. Many have said for years this is a disaster waiting to happen for this exact reason, and look what happened? Im a farmer who has planted over 40000 trees on my property, never once in a watercourse. The catchment management authority are in a office building, not on the ground, once again a mistake made by so called useless experts.
Posted by mick, 8/09/2010 8:27:31 PM, on The Ballarat Courier

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