U.S. Department of Defense


Date of this Version


Document Type



The minimum unambiguous citation for this manual is: EIG 21, May 1959.


The copy of EIG 21, 1959, that was digitized was borrowed from the US Department of Transportation, National Transportation Library.

Since the army reuses documents and document numbers, the date must be included to unambiguously identify any given document.


This Engineer Intelligence Guide was prepared to provide intelligence collection, processing, production, and dissemination guidance by the Chief of Engineers to elements of the Corps of Engineers.

The Introduction contains a list of five key army manuals and documents related to transportation intelligence.

This guide contains detailed instructions for gathering information about highways and bridges. It also contains extensive illustrations and a glossary of highway terms.

The distribution list shows engineer-related organizations interested in engineer intelligence.