Show Asphalt Institute Studies Roads The Asphalt Institute conducted a regional conference Friday at Hotel Utah with a view toward reducing the Ule cost of oil surfacing of ot roads and highways Utah Wyoming Idaho and Colorado Colorado Colo Cob rado road and highway commission commission commission commis commis- sion engineers were in attendance Increasing use of asphalt as a alining alining alining lining for Irrigation canals and reservoirs also was vas discussed in sessions presided over by Bernard Gray New York N. N Y |