SHELLY said:
There were others that collapsed after Ivan (yes they were built after 1985) and more after Dennis. That one "survived" both and collapsed later. Here's one they believe will be next:
Post 1985 Home on Pilings
What kind of damage do you think a Cat 3-4 would do to our area if it
wasn't 60 - 250 miles away? We've only been "kissed" by Opal and the others that followed.
I walked Navarre beach right after Hurricane Ivan and saw rebar twisted like spaghetti and pilings snapped like twigs. Those who believe there are products that can hold up to the fury of Mother Nature will be proven wrong. If she can't knock it down (doubtful)...she'll just take her beach and go elsewhere.
I'm a little confused as to what you and I are discussing - honestly....
Are you questioning (in general) whether a home built after 1985 will collapse if subjected to just erosion (which I think started our little dialog)?
OR are you questioning whether a home built after 1985 will collapse if subjected to erosion and storm surge and wave action as I suspect happened in Navarre?
OR are you questioning whether a home built after 1985 will collapse if subjected to erosion and storm surge and wave action AND cat 4 winds?
Let's summarize our little dialog:
1. ECHOECHO asked if I was going to pay for my neighbor's house if it were damaged due to increased erosion (again EROSION) caused by my retaining wall.
2. I responded by saying a house that was built after 1985 is built on pilings and "supposedly" is designed to survive erosion (again EROSION). I sight examples of homes that show this.
3. Then you showed some interesting and scary pictures of Navarre beach of collapsed houses built after 1985.
4. I then qualified those pictures by saying that the elevation at Navarre Beach is SIGNIFICANTLY LOWER than Blue Mountain Beach and that perhaps the house could have been subjected to storm surge and wave action as opposed to just erosion alone.
5. Then you say...
"There were others that collapsed after Ivan (yes they were built after 1985) and more after Dennis. What kind of damage do you think a Cat 3-4 would do to our area if it wasn't 60 - 250 miles away? We've only been "kissed" by Opal and the others that followed.
I walked Navarre beach right after Hurricane Ivan and saw rebar twisted like spaghetti and pilings snapped like twigs. Those who believe there are products that can hold up to the fury of Mother Nature will be proven wrong. If she can't knock it down (doubtful)...she'll just take her beach and go elsewhere."
Now, what does the above have to do with item # 2 listed above?
I don't deny the "fury of Mother Nature". I don't deny that Navarre got their teeth kicked out. I don't deny ANY of your statements made above.
What I sense from your post, is that maybe you believe our retaining wall will not survive a Cat 3 or 4 since retaining walls are still the subject of this thread.
Is this correct?
To answer your question, retaining wall or not, my home will be greatly damaged by a direct category 3 and probably totally destroyed by a category 4 hurricane. Either way, our wall, but NOT all walls will still be standing (in my very humble opinion...yes humble).
Bottom line, I will not lose my home to a puny category 2 hurricane now that we have a retaining wall. A cat 2 hurricane in our area will cause significantly more destruction because of continued erosion of our bluff than it would if it hit Navarre Beach where few, if any, homes are built on slab. MANY homes in our 20 mile stretch are built on slab because of our high elevation. There in lies the blessing (elevation) and curse (slab construction).
I respect mother nature... I really do. That's why OUR wall is over engineered by at least 50% worse case hydrostatic loads.
A lesson for retaining wall neophtyes... the walls that failed did so NOT because of battering waves or high winds or the east-west current. They failed because of the tremendous loads behind the wall that exist when the sand behind the wall becomes soaked and the sand in front is removed (no support from the front side). If the anchoring system is not designed properly to handle this worse case load, the wall doesn't stand a chance regardless of material used. I took several photos of walls that failed and documented the failed anchoring systems.
Shelly, I'm growing a bit weary of all this as I've tried to "educate" the naysayers about retaining walls. I promise you that I have been much closer to this situation than many others (as if you couldn't tell
)
But like religion and abortion, no one seems to win in debating the retaining wall issue, ESPECIALLY between gulf front owners and non-gulf front owners...plain and simple.
So here's "praying" ;-) for a reprieve from hurricanes this year and many more.
Does anyone have a problem with that?