Montgomery County Executive Marc Elrich said he's gotten the message from frustrated residents about conflicting messaging on the progress of snow plowing efforts. After days of attacking the ice and snow that stopped the region in its tracks, Montgomery County Executive Marc Elrich said he’s gotten the message from frustrated residents about conflicting messaging on the progress of snow plowing efforts. The county’s plow tracker, designed to show the progress of snow clearing operations, had incorrectly reported that 100% of residential streets had been plowed, Elrich said. As of Wednesday morning, Montgomery County Department of Transportation Director Chris Conklin said the county had plowed 90% of the county’s roads. “Plowed streets are likely to still have snow and ice cover, but they should be passable by most vehicles,” Elrich said.