This publication contains amendments to Technical Manuals (TMs) 5-5420-272-72, Operator and Organizational Maintenance Manual for Medium Girder Bridge (MGB) and 5-5420-272-72-7, Operator and Organization/ Maintenance Manual Link Reinforcement Set for the Medium Girder Bridge (MGB).These TMs are being updated to correspond with information contained in this field manual. This publication describes design, recon reports, safety rules; and building,...