US Army Corps of Engineers
Buffalo District Website

GPS receiver communicating directly with excavator
The conventional tracked excavators, which just wrapped up the precise work of constructing narrow, sinuous channels were aided by a new GPS technology that provides the bucket operator and construction supervisors with real-time updates and pinpoint accurate readings on bucket depth and location.

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Photo by: Katie Buckler |  VIRIN: 160129-A-AY453-081.JPG