To begin… the FM Diversion Public web map can be accessed from the FM Diversion Public Information site:

Please read the terms and conditions, and click OK to agree and continue to the map.

The main navigation tools are located in the upper left corner. You can zoom in and out using the plus button and minus button, or using the click wheel on your mouse. You can pan around the map by clicking and dragging.

You can always return to the full extent of the map by clicking on the home button.

You can zoom to your previous extent, or to the next extent by using the left and right arrows just below the home button.

If you are accessing the FM Diversion Public web map on a mobile device, the locator button can be used to zoom the map to exactly where you are on the earth.

You can navigate to a specific address by typing it into the Search Bar.

You can also navigate to a specific County parcel by its Parcel ID, Property Address search, or Project Identifier.  Click the down-arrow to the left of the search box and choose your search method, then enter the appropriate information. The map will zoom to the selected item.

To get your bearings and see your current map extent, click the Show Map Overview button in the upper right corner. This map will update as you pan and zoom around the map.

You can click the same button to hide the map extent.

Video 2 – Content and Basic Tools

This video will show you how access the content in FM Diversion Public web map and use some basic tools.

The Layer List located on the left sidebar can be used to turn map layers on and off. To see the layers, expand by clicking the arrow. The symbology for a particular layer can be seen by clicking the arrow again. To turn a layer on or off, use the check box.

  1. Open Layer List
  2. Expand FMDiversionPublicWebMap
  3. Scroll Down to Impacted Parcels Status, and Expand
  4. Turn Off/On
  5. Close Layer List

To view information regarding how the proposed diversion will affect properties and where the water would go before and after the project, you can use the layers that include “Flood Event” within their title.  Note that these are large data sets and will take considerable time to load.  They may perform better if zoomed in close on a smaller area.

  1. Open Layer List
  2. Expand FMDiversionPublicWebMap
  3. Scroll Down to 100-yr Flood Event-Existing Conditions and With Project
  4. Turn On/Off
  5. Close Layer List

To change the base map, you can access the Basemap Gallery, also on the left sidebar. There are a wide variety of options, from aerial imagery (pause) to a more basic background.

  1. Open Basemap Gallery
  2. Change to Imagery
  3. Change to Dark Grey
  4. Close Basemap Gallery

The Select tool on the left sidebar lets you select a parcel feature and use that selection in an attribute table.  Zoom in to view the parcel features, or use the search area to find a specific parcel.  Click the select button, and click on the map, or press and hold to draw a box around several parcels.  Next, click the arrow at the bottom of the screen to view data about the selected parcels in tabular form.  From here you can choose to view only the selected records (Options) or export to a .csv file.

  1. Zoom in on the map
  2. Select a few parcels
  3. Open the attribute table
  4. Open the options pull-down
  5. Clear Selection

The Measurement tool lets you quickly find area, distance, or location. It is located below the search box at the top left of the map.

  1. Open Measurement tool
  2. To find the area, you can first select the units and then click to create a polygon, and double click to close the polygon.
  3. Click area
  4. Select dropdown
  5. Create polygon
  6. Double click to close

For a distance, you once again select the units and then click to create a polyline, and double click the last point.

  1. Click distance
  2. Select dropdown
  3. Create line
  4. Double click to end

The Draw tool allows you to add graphics to the map.  You can add points, lines, shapes, and text, and choose a color or font.  The information you add with the Draw tool can then appear on a printed version of your map. You can clear the drawing when you’re finished, or it will disappear when you close the map.

  1. Click Draw tool
  2. Create a line
  3. Change its color
  4. Clear the drawing

Video 3 – Printing

The Print tool lets you export the current map view from the FM Diversion Public web map, and is located on the left sidebar.

  1. Open Print tool
  2. You can name the map, specify the layout, and the format.  The advanced dropdown lets you specify more options, such as map scale, metadata, size, and print quality. When you are ready, click on the Print Button. It might take a moment, but soon you’ll see your created print in the list. Click to open and save to a local directory.
  3. Select Layout dropdown
  4. Select Format Dropdown
  5. Open Advanced
  6. Close Advanced
  7. Click Print

It might take a moment, but soon you’ll see your Created Print in the list. Click to open and save to a local directory.

  1. Open
  2. Save
  3. Click back to main screen.

Video Tutorial: Fundamentals of Web based GIS