Kenneth_2003 said:
Serotonin said:
chico said:
Texas A&M helped put this together.
https://buyersaware.org/map/flood
I'm interested in how they did this. My parents have been in the same house since the early 90s and have never come close to flooding. They aren't close to a waterway or have street flooding or anything. Yet their house is red (as are houses around them). Seems like a modeling whiff there.
I just looked at my address as well. It puts me in a medium risk. I didn't live here during Harvey, but the neighborhood did not flood and we're on Cypress Creek. This subdivision is on a high bank with the low bank on the other side. I've mapped it out and the equivalent elevation on the south side of the creek is over !4/ mile south toward 1960. It's just an insane amount of water that would be required to raise the water levels another 3-4 feet.
I think they've relied too much on "close-ology" and then said well if your storm drain is plugged up.... That's just not how it works.
Not a flood expert or hydraulic engineer, but I wonder if they take the momentum of the water into account along with the height of the bank that you're near. The water does flow faster through bayous during floods so I could see it pressing higher on banks on the outside of corners.
During Harvey, there were areas near Buffalo Bayou (from 6 to maybe inside the beltway) that flooded far away from the bayou while houses closer did not due to the speed of the release from the reservoir.
I used to gripe about being in the 100 year since our house didn't come close to flooding since Allison, but we got 18" inside during Harvey.