A ground worker uses guide lines to steady a large circular upwelling ring as a heavy-duty yellow Grove mobile crane lifts it high above a concrete deck.

How $15,000 Upwelling “Bubblers” Are Saving Salmon in the Pacific Northwest

Civil Works, Environment, People, Programs, Projects

At A Glance Target Ecosystem: Enhancing thermal migration safety corridors for Pacific salmon and steelhead trout. Fiscal Efficiency: Drops project capital requirements from millions of dollars (legacy chimneys) down to $15,000 per bubbler unit. Initial Staging: Successfully operationalized at Lower […]

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