Dear colleagues,
The recent floods in most parts of Iran caused many financial problems and also many people died.
Unfortunately, the recent floods were quite brown in color, meaning that a large volume of soil was washed off from the watershedes of the country and deposited in reservoirs of dams.
What do you think are the best short-term and long-term measures to prevent flooding in the coming years?
Regards
Bijan Azad
You may need two kinds of solutions, catchment management and flood mitigation measures. The former should be mainly focused on prevention of soil erosion by tree planting of some other way. There are several alternatives for flood mitigation such as detention reservoirs, dykes and pumping stations, diversion structures, flood retardation areas etc. depending on the location. None structural measures such as flood forecasting and early warning also can be adopted to minimize the property damages and loss of lives.
You may need two kinds of solutions, catchment management and flood mitigation measures. The former should be mainly focused on prevention of soil erosion by tree planting of some other way. There are several alternatives for flood mitigation such as detention reservoirs, dykes and pumping stations, diversion structures, flood retardation areas etc. depending on the location. None structural measures such as flood forecasting and early warning also can be adopted to minimize the property damages and loss of lives.
preventing flooding in some cases is near impossible. A braided stream with high sediment sources and loading is apt to continue flooding. Channelization or building dams, converting barren lands to forests and grasslands can help. But if dams fill with sediment or fail, flooding can be increased. Identifying floodplains can be helpful in reducing development and property, life losses. Consulting a hydrologist or watershed management professional may be helpful.
I think the main problem of floods in arid and semi-arid regions is the lack of maps showing the areas most vulnerable to flooding, and if these maps are found, they are not taken into consideration.
the anarchic construction of the habitations at the edges of the wadis contributes significantly to the occurrence of the floods, in addition the effect of climate change through heavy rainfall in a short time.
Therefore, I think that the realization of flood risk maps is one of the best solutions for protection against floods, as well as the construction of protective structures like dams and check dams.
Construction of storage dams and regulatory dams based on the value of the highest flood wave that occurred over 100 years ago.
we can't prevent flood we just have to construct far away of rivers.
Well,
Prevention from flood disasters is required for future planning. Here Urbanization planning should be present.
Regards
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