The Channel Migration Zone Citizen Advisory Committee (CMZ CAC) is an ad-hoc advisory committee established by the Pierce County Council to evaluate and provide recommendations to Pierce County regarding channel migration zones. The committee includes representation from a number of stakeholder groups, including affected property owners, members of local watershed councils, land use advisory committees and floodplain managers.

Channel migration zones have been adopted along reaches of the Puyallup, Carbon and White rivers and have been studied (although not yet adopted) along reaches of the upper Nisqually River and South Prairie Creek. Further CMZ studies of the Greenwater and Mashel rivers are also required by Title 18E.70 of Pierce County Code. The CAC has been asked to work collaboratively with Pierce County staff to develop recommendations on the mapping and management of CMZ areas by August 31, 2009.

The CMZ CAC developed their recommendations during a series of public meetings held between September 2008 and August 2009. These meetings included presentation of technical information, discussion and public comment.

The report was finalized at the August 5th meeting and will be delivered to the Pierce County Council for further action. Additional information about this process will be posted here as it becomes available.

Glossary of Terms - Definitions of common technical words and phrases, plus a guide to acronyms

CMZ CAC Press Release

Pierce County Code:

• Pierce County Code Title 18.E
• Resolution initiating the formation of the CMZ CAC R2008-55
• Resolution creating the CMZ CAC and confirming the membership R2008-125

King County CMZ Code:

• King County Public Rules Chapter 21A-24
• Severe CMZ Regulations Chapter 21A-24.045
• Moderate CMZ Regulations Chapter 21A-24.275

MAPS: (all pdf's)

All Pierce County

Carbon River

Puyallup River

South Prairie Creek

Upper Nisqually River

White River