"NHS"=>"yes","hgv"=>"designated","hgv:national_network"=>"yes","lanes"=>"4","lanes:backward"=>"2","lanes:forward"=>"2","maxspeed"=>"65 mph","ref"=>"M 32;M 65","source:hgv:national_network"=>"https://hepgis-usdot.hub.arcgis.com/apps/usdot::national-network-conventional-combination-trucks-map/explore","surface"=>"asphalt","tiger:cfcc"=>"A31","tiger:county"=>"Alpena, MI","tiger:zip_left"=>"49707","tiger:zip_right"=>"49707"