Lessons Learned, Headquarters, 84th Engineer Battalion (Construction) Open PDF Document Details Document Type Technical Report Publication Date Apr 30, 1970 Accession Number AD0875694 Entities Organizations Adjutant General's Corps Tags Communities of Interest Human Systems Weapons Technologies DTIC Thesaurus Topics Army Artillery Bearing Capacity Bearings Bridges Causeways Concrete Construction Drug Abuse Engineers Lessons Learned Materials Observation Pipes Resistance Roads Standards