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Willamette River Crossing Project Update - December 2020

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Gresham Trestle Upgrade Project Update - December 2020

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2020 Editions of Stormwater Management Manual and Source Control Manual Now in Effect

The City of Portland adopted 2020 editions of the Stormwater Management Manual (SWMM) and Source Control Manual (SCM). The new editions of the manuals are in effect starting Dec. 14, 2020.

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