A new noise wall along state Route 167 between Algona and Auburn is built of concrete blocks instead of the usual 12-foot pre-cast panels.
A new noise wall along state Route 167 between Algona and Auburn is built of concrete blocks instead of the usual 12-foot pre-cast panels. Adam Lynn Staff writer
A new noise wall along state Route 167 between Algona and Auburn is built of concrete blocks instead of the usual 12-foot pre-cast panels. Adam Lynn Staff writer

Traffic Q&A: Panels vs. blocks when building a ‘noise wall’

April 03, 2016 5:00 AM