Comprehensive Flood Hazard Management Plans

Purpose


Comprehensive Flood Hazard Management Plans (CFHMP) contain recommendations on future flood management for problematic areas. Once the plan is adopted by the local government, it serves as a policy document, for the County and Cities that adopt it.

The Plan itself is not a regulatory document, but identifies and prioritizes flood control and mitigation projects for the community. Adoption of the plans increases the chances of State and Federal funding of projects and post flood disaster relief.

Steps


The main steps in a CFHMP are as follows:
  •     Establish a citizen and agency participation process
  •     Quantify the problems and objectives for flood hazard management
  •     Determine the need for flood hazard management measures
  •     Identify and evaluate alternative flood hazard management measures
  •     Develop a flood hazard management strategy
  •     Submit the final CFHMP to Ecology
Naches - U.S. 16th
Study Areas Map

Plans


  • The Upper Yakima River CFHMP: The Upper Yakima River CFHMP covers the Yakima River between the mouth of the Yakima River Canyon to Union Gap, and the Naches River from it’s mouth at the Yakima River up to the Twin Bridges. The Plan was adopted by the County in 1998 and amended in 2007 and 2018 as new information emerged about the condition of the Yakima River.

  • The Naches River CFHMP: The Naches River CFHMP covers the Naches River from the confluence of the Naches and Tieton Rivers to the Twin Bridges northwest of Yakima. The Naches River CFHMP was adopted 2006.

  • Ahtanum-Wide Hollow CFHMP: The Ahtanum-Wide Hollow CFHMP covers the entire Ahtanum and Wide Hollow watersheds, focusing on the Ahtanum Valley Floor, West Valley, Union Gap, and parts of Yakima. The Yakama Nation is a partner in the project - Ahtanum Creek forms the northern boundary of the Yakama Reservation. This plan was adopted in 2012.

  • The Lower Yakima River CFHMP will be initiated following coordination discussions with the Yakama Nation.


The Upper Yakima River CFHMP: The Upper Yakima River CFHMP covers the Yakima River between the mouth of the Yakima River Canyon to Union Gap, and the Naches River from it’s mouth at the Yakima River up to the Twin Bridges. The Plan was adopted by the County in 1998, and amended in 2007 as new information has emerged about the condition of the Yakima River.
The Upper Yakima River CFHMP: The Upper Yakima River CFHMP covers the Yakima River between the mouth of the Yakima River Canyon to Union Gap, and the Naches River from it’s mouth at the Yakima River up to the Twin Bridges. The Plan was adopted by the County in 1998, and amended in 2007 as new information has emerged about the condition of the Yakima River.
The Upper Yakima River CFHMP: The Upper Yakima River CFHMP covers the Yakima River between the mouth of the Yakima River Canyon to Union Gap, and the Naches River from it’s mouth at the Yakima River up to the Twin Bridges. The Plan was adopted by the County in 1998, and amended in 2007 as new information has emerged about the condition of the Yakima River.