Like RWF7437 said, you really should contact a structural engineer or the manufacturer of the box culvert. I have run into problems in the past where I wanted to tap into a curvert and it turned out that the culvert was reinforced 12 inches o.c. and there was no way to get a lateral into the...
I frequently download the "Firmettes" and then insert them into AutoCAD as a raster images. I have no problem with TIF files. In fact, I know that AutoCAD has supported the TIF format since release 13 (perhaps earlier).
Also, you may want to ask around for scanned FIRMs. We have a...
Thank you for the help, perhaps I can elaborate a little more into the problem. This 20-acre development is the start of a great deal of development in the area, so BFE's have not yet been established. In fact, it is my responsiblity to establish them.
Local regulations state that the...
I am working on a 20-acre site that lies within a FEMA designated zone "A". Only 63-cfs enters the site and is conveyed safely through a small portion of the site back to its natural channel. My problem is that the whole site lies within the flood zone but only 2 of the 6 buildings...