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ADDITIONAL
INSTRUCTIONS |
Before connecting to the Floodplain Map website hosted by
Leonard Rice Engineers, make sure your
Internet browser is SVG-enabled.
Microsoft Internet Explorer™ users must install Adobe’s SVG plug-in. The latest version of Mozilla’s Firefox
browser does not require a plug-in.
Links to the Mozilla and Adobe websites are provided on the floodplain map instruction
webpage. Follow the respective
installation instructions provided by Mozilla and Adobe.
SVG is a relatively new
Internet open-source standard that stands for Scalable Vector Graphics. Navigating the Floodplain Map website efficiently
takes a little practice and patience.
Your experience will be more rewarding by following a few simple
suggestions:
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1.
Click on the Floodplain Map link. Wait for
the map controls to appear in the right half of your browser window and a
wide-area map on the left. The default
map will show the “District Boundary” layer along with a “Shaded Relief”
background. Wait a few seconds until
the map background is on your screen before going to the next step. 2.
Click on the “Find Address” button. It is best
to do this before selecting any other map layer or you may find yourself
requiring more patience. SVG shape
files can take quite a while to download and draw. The larger the area, the longer it takes. 3.
Enter your street address when prompted. You may use
either upper or lower case letters.
Punctuation is not necessary and abbreviations are acceptable.
4.
Enter your city name or the name of the city/town
corresponding to your mailing address. DO NOT enter your state or zip code.
5.
After the red star appears on the map, turn off the
“Shaded Relief” map and turn on the “Urban Area Images” layer by clicking on
the appropriate box. This will display an aerial photo
background provided by the USGS and Microsoft’s Terraserver. There is always a possibility that the
Terraserver website is temporarily unavailable. There is nothing we can do to fix this
problem if it occurs. Sorry—you will
just have to try later. The star
location is based on Yahoo Maps address
locator and is only approximate.
Verify that the red star is near the location you entered in steps 4
and 5. If not, click on the “Find Address”
button and try again. If you are still
unsuccessful, it is likely that Yahoo’s address locator cannot find your
address. As an alternative, try using
the “Map Navigator” tools to locate your property manually. With a little practice you may become very
proficient at this.
6.
After you find your property, turn on the
“Floodplain” layer by clicking on the box. A light blue
semi-transparent shaded image of the nearest 100-year floodplain(s) will appear
(see figure below). If nothing happens
after a few seconds and the box is clearly checked, use the “Map Navigator” to zoom out until the
nearest floodplain is displayed.
Remember that this floodplain map contains approximate delineations of
the floodplains in the
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If you require technical
support, contact the District (303-455-6277) during normal working hours
between 8:15 a.m. and 5:00 p.m.
EXAMPLE:
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NOTE: This is the
address for the Urban Drainage and Flood Control District. The red star is on the northwest building
of the Diamond Hill Office Complex near the intersection of |