[GreenYes Archives] -
[Thread Index] -
[Date Index]
[Date Prev] - [Date Next] - [Thread Prev] - [Thread Next]
As a former resident of "The Katrina Zone" with a lot of impacted family, I'll add a reminder about the complexity of proposed Corps flood control projects. A floodgate at the Rigolets, combined with new levees as in the 1970's proposal, could certainly have lessened the surge from Lake Pontchartrain. However, in that area, (Slidell) flooding from springtime rains is an annual event, and the critical measure there (before the new Katrina watermark) was whether you were higher than US Hwy 90, the construction of which created a de facto levee and prevented floodwaters from traveling out across (and nourishing) the eastern marshes. Springtime floods there stop rising when they overtop Hwy 90. Higher levees can just create a deeper bowl to bail out if you aren't very careful. I participated in successful opposition to such a project in 1989, because the Corps proposed to trap a large portion of the Honey Island Swamp behind a single gate. To provide protection and still allow nonflood water flow that's closer to natural, barriers must have lots of little gates, which means extra headaches and cost in the short term.... Jay Donnaway former swamp rat high and dry, safely in the shadow of Mt. St. Helens...... |
[GreenYes Archives] -
[Date Index] -
[Thread Index]
[Date Prev] - [Date Next] - [Thread Prev] - [Thread Next]