Lock & Dam Protocol

The Portland District navigation locks on the Columbia and Snake Rivers are operated by the U.S. Army Corps of Engineers. The Portland District locks are:

• Bonneville Dam — Columbia River Mile 145
• The Dalles Dam — Columbia River Mile 191
• John Day Dam — Columbia River Mile 216

For up-to-date locking-through procedures and the current summer recreational lockage schedule, contact the U.S. Army Corps of Engineers Portland District.

Non-motorized Boaters

Portage of non-motorized recreational craft and other vessels unsuitable for lockage is the preferred method of transport around dams. Non-motorized craft on the Columbia River may be locked through if moored to a motorized assist vessel. On the Snake River, non-motorized craft may be locked through without an assist vessel when no spill is occurring. For portage routes around each dam, see the portage guide.

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Originally published on ndwt.org; reused with permission from the Washington Water Trails Association — see project NOTICE.