We went to a community meeting on the contingency planning in case the Howard Hanson Dam is breached. The Green snakes around for something like 64 miles on its way to the Duwamish. They have been rebuilding the levees in several places. They are also planning to place 3' sandbags on top of them for added protection.
I think they managed to get the message of "no need to panic" across. They kept stressing the distance of the dam upstream and the multiple levels of warnings that could/would be given. They didn't come right out and say that the time frame between breach and flood was 7-8 hours, but they stressed that they would have time to announce which routes and shelters would be open and most accessible at various stages.
Our house is located on the top of the hill on one side of the valley so we are in no danger, but we could be "inconvenienced".
The power substations and the water treatment plant are all down in the valley. If they get inundated we could feel the effects.
We are making sure that we have propane, and batteries.
And we picked up the instructions on how to block the sewer to avoid backwash. (That is a horrid idea.) YUCK!
The meeting was held in the ice hockey arena, we wore coats. Strangely there were a large number of people who obviously had not made the connection of ice hockey and c-o-l-d.
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