POBOnline
  Home
  Advertise
  Subscribe
  RPLS.com Community
  eNews Subscription
  eNews Archive
  Subscription Customer Service
  Online Updates
  Latest News
  Calendar of Events
  Call for Papers
  Webinars
  On the Money Podcasts
  Fun + Games
  New Products
  Association Headlines
  Current Issue
  Cover Story
  Features
  Columns
  Resources
  Archives
  Career Center
  Classified Ads
  Classified Listings
  Digital Edition Archives
  Distance Education
  Geo Locator Buyers Guide
  Industry Links
  Product Showcase
  Market Research
  POB Store
  POB Info
  Special Collections
  GIAA Mailbag/Tool Tips
  GPS Observer Series
  Site Prep
  Surveying GIS
  Surveyor + the Law
Search in: EditorialProductsCompanies

Popular RPLS.com Posts

Recent discussion topics from POB's global community of geospatial professionals - RPLS.com
RPLS.com

When FEMA Maps Defy Physics

August 28, 2010

ARTICLE TOOLS
EmailEmailPrintPrintReprintsReprintsshareShare



Posted by SURV1969 

I have a client whose property is 16 feet above his neighbor's property (which is out of the flood zone A), to the east and about 18 feet above his neighbor's property to the west...  He is about 20 feet higher than the end of his road, which happens to be near the head of the stream and out of the A zone. The flood depth upstream from his house is 6 feet deep, while the flood depth downstream from his house is 8 feet deep.   Depth at his house is about 18 feet deep.  His house is on the highest ground (natural) around. There is no BFE and the maps are so screwed up that the "simple" methods of determining a BFE is not allowed. In Ohio hydrology is engineering and I'm not an engineer. It seems like some dugged-out hippie-type draft dodger during the 70'd (when the maps were made), "zigged", when he (she) should've "zagged", as such that instead of following the correct contour, the line was drawn to go about 14 feet up the hill. As I understand it, without a BFE, there's little that can be done . . . or is this really so?

To read the rest of this thread, go to www.rpls.com/forums/viewtopic/42/1116416


|PrintEmail
  Comments (0)Post a Comment
 

No HTML or BBCode in comments please.
 


Did you enjoy this article? Click here to subscribe to the magazine.














BNP Media
© 2010 BNP Media. All rights reserved. | Privacy Policy