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Floodplains also serve important functions in protecting the physical, biological,
and chemical integrity of water. Water that runs off quickly over the surface, as
over a barren floodplain, is capable of carrying large amounts of sediment and
debris to the main water body (creeks, rivers, ocean, etc.) A vegetated floodplain,
however, slows the surface runoff, causing it to drop most of its sediment
originating on the land drops out, as well as, some of that scoured from the
channel bank and bed. This filtering process may add rich nutrients to the
floodplain soils. Another example of water quality maintenance is the beneficial
shading effect of riparian (streambank), which helps to avoid temperature stress
on the natural system.
If you have any questions or need additional information regarding repetitive flood loss
or floodplain management, please contact me at 757-926-8264 or by email at
tranhn@nnva.gov.
Sincerely,
Hai Tran, PE
City Floodplain Manager
Enclosure: Do you Know your Flood Risk? factsheet
City of Newport News, 2400 Washington Avenue, Newport News, VA, 23607
Phone: (757) 933-2311 Fax: (757) 926-8300
Website: www.nnva.govJump to an indexed page (75 of 75)