Paving a Green Path for Exports

T6 Porous Pavement April 2017

To minimize stormwater runoff, the Auto Warehousing Corporation in conjunction with the Port is using porous pavement in the construction of an 18-acre finished vehicle storage lot adjacent to Terminal 6 to accommodate export vehicle volume expansion. Porous pavement allows for rainwater to infiltrate the ground mimicking a natural hydrologic system. It also filters out pollutants and lowers water temperatures before it reaches the adjacent Columbia Slough. In addition, the porous pavement does not require seal-coating, minimizing potential pollutants and reducing maintenance costs over time. This public private partnership, which is partially funded by a ConnectOregon VI grant, will reduce traffic on nearby roadways and decrease the short-term movements of vehicles which will reduce idling and the associated emissions. New energy efficient LED lighting is positioned to minimize light pollution of the recreational trail and slough. This project builds upon a 35-acre porous pavement lot at T6 installed in 2006; which has performed extremely well and is one of the best examples on the U.S. West Coast of a large-scale porous pavement installation.

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New energy efficient LED lighting is positioned to minimize light pollution of the recreational trail and slough.

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A view of the lot under construction in April 2017. To facilitate drainage, there is a sandy layer beneath the porous pavement.