This will probably be my last Flood of '08-related post, and hopefully I will return to regularly scheduled blogging.
Flood costs Davenport an estimated $735k -QCTimes
If Davenport were to build a permanent flood wall, I have read it would cost at least $60 million. Even though I think that was from a years-old estimate, and would thereby be too low, I'll use it anyway.
The last major flood was in 2003, 5 years ago. The 2008 flood made the top 10 floods of all time list, which goes back to at least 1868. Judging by that, we only have a flood like this or worse every 14 years or so. However, for the sake of this math I will say that we get a major flood every 3 years.
So we could spend $60,000,000 on a floodwall. Or we could spend $750,000 every three years to build a quick temporary levee and hose off some streets. $60M divided by every 3 years, divided by $750,000 would equal out to it taking 240 years for to "break even" on a floodwall. Somehow I doubt that floodwalls even last 240 years, especially without some annual maintenance. Spending money on maintaining a flood wall just means that it would take even longer to break even. If you change the numbers to a more realistic every-5-years major flood, and $65 million dollar floodwall, it would take 433 years to "pay off" the wall.
This is one situation where I'm definitely an againster. I'm against an expensive floodwall that pushes that water onto someone else, and I'm against spending 240 years worth of flood-fighting money to do it.
Here was LeClaire Park 12 days ago:
And here it is this morning: