I'm trying to map the national bridge inventory, but the coordinates are stored in this 9-digit code for longitude (and 8-digits for latitude) EXAMPLE: Longitude is 81°5.8' Code is 081054800 Pag Use the Menu button to toggle the USNG coordinates grid on/off. While the map is open you can now display data from *any* public-facing (i.e. no login required) ArcGIS server along with a USNG grid on top of that data. To get started, click the basemap button (next to the 'Menu' button) then under the 'Overlay' heading, click "Add GIS overlays". Convert between Latitude/Longitude & UTM coordinates / MGRS grid references. The Universal Transverse Mercator coordinate system is a global system of grid-based mapping references.. UTM is in fact a set of 60 separate 'transverse Mercator' projections, 1 covering 60 longitudinal zones each 6° wide. It covers latitudes spanning 80°S to 84°N (the poles are covered by the separate 'UPS To determine the six-digit coordinate, look at the 100-meter mark on the bottom scale, which is nearest the vertical grid line. This mark is the third digit of the number 115. The 100-meter mark on the vertical scale nearest to Point A gives you the sixth digit of the number 813. Putting these together, you have 115813. There are a few ways to show the coordinate grids on Google Earth. The easiest way to show the coordinate grids in Google Earth is to select " Grids " from the " Tools " options. Then you will have full zoomable coordinates grid cover (Pic 1 - 3). Pic. 1 - 3 The WGS-84 coordinate grids provided by Google Earth with details depending 3 Figure 071-COM-1002 2. Grid Square 1181 Divided a. Allocate the grid square into a 10 by 10 grid. b. Read right (from the lower left corner) to the imaginary gird line nearest the identified point. Note: In the example the North-South imaginary line nearest the point is halfway or 5 lines out of a total of 10 lines. Therefore the first half of your grid coordinate is 115. .

8 digit grid coordinate example