The October 2008 issue of CE News includes an opportunity for readers to earn Professional Development Hours (PDHs) by reading and responding to Stephen Archer’s peer-reviewed article “Subgrade Improvement for Paved and Unpaved Surfaces Using Geogrids.” Archer has brought his experience from Tensar to this latest installment in CE News’ Professional Development Series. Request a PDF copy of the article from CE News and earn your credit.

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