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 05:00 AM

UPDATED April 05, 2016 09:20 AM

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