I haven't done many of these on houses that were elevated the house now has a 7' basement but the floor is gravel there are flood openings that the would have to put a little fill around to bring them less than 1' above the adjacent grade. I was going to use diagram 2A but since there is no floor other than gravel i don't know if it should be the lowest grade in the basement. I just have never encountered this situation where they didn't fill around the house.
mvanhank222, post: 417377, member: 8673 wrote: I haven't done many of these on houses that were elevated the house now has a 7' basement but the floor is gravel there are flood openings that the would have to put a little fill around to bring them less than 1' above the adjacent grade. I was going to use diagram 2A but since there is no floor other than gravel i don't know if it should be the lowest grade in the basement. I just have never encountered this situation where they didn't fill around the house.
Discuss it with your local FEMA Floodplain Administrator.
I used to do these on a regular basis on our lakes.
No more punishment for this guy, I am getting too old for that brand of crap.
Randy
mvanhank222, post: 417377, member: 8673 wrote: I haven't done many of these on houses that were elevated the house now has a 7' basement but the floor is gravel there are flood openings that the would have to put a little fill around to bring them less than 1' above the adjacent grade. I was going to use diagram 2A but since there is no floor other than gravel i don't know if it should be the lowest grade in the basement. I just have never encountered this situation where they didn't fill around the house.
The two red herring in the picture is the gravel floor and the location of the existing flood openings. First, you are certifying the flood opening area so that FEMA can determine if the foundation will stand up to pressure of flood waters. I don't think FEMA's or the USACE's solution would be to add fill in a flood plain. My neighbor's 125 year old house has a basement that is both dirt and concrete. Rather I think they would require additional flood openings. As for the floor type, concrete; gravel; or dirt does not make a crawl space a basement. Seven feet between floors meets the threshold between figure 2A and figure 9.
2A was what I thought as well. The twist is that the fill was supposed to be placed around 2011 to bring the basement floor up and the grade around the house so that the flood venting was compliant. The county worked with many home owners in the area to accomplish this exact thing but this one was never completed. The way they did this one is very atypical for this area.