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To help you plan your travel on I-5, I-90, and US 12, during Labor day weekend, we have developed traffic volume charts showing the expected traffic volumes during this time. Besides planning for the coming Labor Day weekend, you can also see what the traffic volume trends were in past years.2011 Labor Day Charts 2010 Labor Day Charts (pdf 1.1 mb)2009 Labor Day Charts (pdf 691 kb) 2008 Labor Day Charts (pdf 308 kb) 2007 Labor Day Charts (pdf 244 kb)