Road & Bridge Barn 476 Nw 5th Ave Trenton, MO 64683 Phone : (660) 485-6719 Business Category Government Offices-County Legislative Bodies Counties Of-missouri--grundy County Of, Road & Bridge Barn Spickard, MO 64679 Phone : (660) 485-6719 Business Category Government Offices-County Government Offices & Public Schools Grundy County Of--road & Bridge Barn Spickard, MO 64679 Phone : (660) 485-6719 Business Category Government Offices-County Government Offices & Public Schools