I'm reposting a climate change blog item from June 8, 2008 with origins from 2003, along with some current photos of Lake Michigan storm damage along the Milwaukee lakefront over the last few weeks.
My point is to show that experts' suggestions that municipalities upgrade their infrastructure to meet a changing climate have gone largely ignored.
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My point is to show that experts' suggestions that municipalities upgrade their infrastructure to meet a changing climate have gone largely ignored.
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SUNDAY, JUNE 8, 2008
"Given the amount of damage which has occurred along Wisconsin's Great
ReplyDeleteLakes shoreline over the past 25 years, it is clear that many traditional
approaches, particularly structurally-oriented ones, have not proved effective.
Along many reaches, if shore protection devices last more than fifteen years
or through one high water period, they are considered a success.
Generally, there appears to have been an over dependence upon
structural solutions combined with a lack of understanding of erosion
processes. Shore erosion is not a hazard which is simply eliminated with
the expenditure of large sums of money on shore protection. Careful site
analysis and design must precede the placement of all structural devices-
and even then "success" is measured in terms of a few decades.
"Without proper engineering and maintenance, structural failure can be expected at
an even earlier point. Virtually all emergency structures and many low-
cost structures (those under $100 per linear foot) do not last beyond ten
years.
Existing nonstructural solutions have not proved any more effective.
While all coastal counties and many coastal communities have adopted minmum
setback standards (75 feet from the ordinary high water mark), this single
measure does not insure adequate protection. Recession rates and slope
failure hazards are simply too great along many reaches.
Also, since erosion hazard disclosure is not officially required in Wisconsin, decisions
on coastal lands continue to be made without adequate advance information.
If traditional structural and nonstructural methods continue to be employed
on an individual-needs basis in Wisconsin, damage losses can be expected to
rise in the future."
https://www.govinfo.gov/content/pkg/CZIC-tc224-w6-s6-1979/html/CZIC-tc224-w6-s6-1979.htm