MCRP 3-34.3 — Engineer Reconnaissance

MCRP 3-34.3 governs engineer reconnaissance, including reconnaissance support, route classification, technical assessments, and surveys.

Search MCRP 3-34.3

  • Publication number: MCRP 3-34.3
  • Title: ENGINEER RECONNAISSANCE
  • Date: 30 Jan 2017
  • Proponent: 03000 Operations & Readiness
  • Status: Current

View MCRP 3-34.3 on armypubs.army.mil


The publication covers engineer reconnaissance tasks, team capabilities, command and support relationships, and reconnaissance support to mobility, countermobility, survivability, and other environments. It specifies technical methods for route, road, bridge, gap-crossing, infrastructure, environmental, and airfield reconnaissance.

Applies to: This publication has been prepared under our direction for use by our respective commands and other commands as appropriate.

Topics covered

  • Engineer reconnaissance tasks
  • Engineer reconnaissance team capabilities
  • Reconnaissance support to mobility
  • Route classification
  • Road reconnaissance
  • Bridge reconnaissance
  • Infrastructure reconnaissance
  • Airfield assessment

Questions and answers

What does engineer reconnaissance collect information about?

Engineer reconnaissance consists of tasks that are undertaken to obtain (by visual observation or other detection methods) information about the activities and resources of an enemy or adversary or to secure data concerning the meteorological, hydrographical, or geographical characteristics of a particular area. (paragraph 1-1)

Do engineer units have designated reconnaissance organizations?

Engineer units do not have designated reconnaissance organizations. (paragraph 1-1)

What is the difference between an ERT assessment and a survey?

The assessment requires less time, but it provides less technical detail. (paragraph 1-28)

What does infrastructure reconnaissance assess?

Infrastructure reconnaissance is a multidisciplinary reconnaissance focused on gathering technical information on the condition and capacity of existing public systems, municipal services, and facilities within an assigned area of operations. (paragraph 5-36)

How is an underpass represented on a map or overlay?

An underpass is depicted on a map or overlay by a symbol that shows the structure ceiling. (paragraph 4-38)

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