Historic American Buildings Survey (HABS) – Part 2

In the last post, we looked at a little bit of background about the Historic American Buildings Survey (HABS) and some of the guidelines for taking measurements for a HABS quality map in a historic structure. In Part 2 here, we will look at the guidelines for how the final drawings should be completed and look at an example from the Missoula Historic Underground Project.

When producing the final drawing of a HABS map, it is best to first use graphing paper. For the Missoula Historic Underground Project, we typically used 8 squares per inch. If the drawing will be submitted to the Library of Congress for adding to the collections, pre-printed sheets of HABS standard mylar are available from the HABS office upon request. The drawing can then be transferred onto this mylar paper to remove the graph paper lines for a cleaner look. Some of the other requirements are:

  • use of archival pens, lines in black, and measurements in colored pencil (generally red) to set them apart from the sketch;
  • measurements are placed outside the lines, not inside the drawing and are written perpendicular to the dimension line;
  • the drawing must be centered on the sheet both horizontally and vertically;
  • the use of standard architectural symbols is required for consistency;
  • room breaks should be delineated.

Even the text and legend/title box has guidelines that must be followed:

  • All text must be in uppercase letters with no abbreviated words;
  • When using a pre-printed HABS sheet, the title box is already set up but it generally includes such information as- project name, building name, address, site number, map title, date, and who the drawing was completed by.
  • The drawing should include a north arrow as well as the scale box in metric and English.
Plan map for the basement of one of the MHUP sites. (Image is scanned in B&W but the dimensions would be in another color besides black.)

Plan map for the basement of one of the MHUP sites. (Image is scanned in B&W but the dimensions would be in another color besides black.)

Above is an example of a HABS quality map from the Missoula Historic Underground Project.

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