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County survey crew working in Number 1 Canyon drainage

Wenatchee’s Number 1 Canyon can be characterized as having a steep channel throughout its 6.8-square-mile basin, allowing for mud, rock and other debris to flow down through the channel during heavy rains or flood waters that occur on the order of 10-year and greater recurrence intervals.  When this happens, flooding of private and public property occurs, leaving costly cleanup to homeowners, Chelan County and the City of Wenatchee.

In June, Northwest Hydraulic Consultants of Seattle, or NHC, was hired by the Chelan County Flood Control Zone District (FCZD) to complete a needs analysis of Number 1 Canyon. The $114,500 project is being paid for by the FCZD.

The needs analysis, sometimes called a gap analysis, will analyze the basin’s conveyance as a whole and determine where and what is needed to minimize the damage experienced from this type of flooding event. It will be a tool in guiding future capital projects that protect property and the public’s health and safety from flooding.

Chelan County’s survey crew is playing an important part in this process, as the crew is gathering the necessary data for the needs analysis. The crew is recording the natural and artificial physical features of Number 1 Canyon, both in the city and county limits. The county’s survey crew uses clearly marked vehicles. It does not do work on private property.

If you have a question about the project, please contact Chelan County Public Works directly at 667-6415. Or email us at fczd@co.chelan.wa.us.

Last Updated: 08/24/2021 09:04 AM

Chelan County Calendar

Upcoming events and schedules at the county!

  • 18
    Dec 2024
    01:00 PM - 03:00 PM

    Hearing Examiner - December 18, 2024

    Posted by: Community Development

    By Zoom Video Conference or in person
  • 18
    Dec 2024
    06:00 PM - 09:00 PM

    Planning Commission - December 18, 2024

    Posted by: Community Development

    400 Douglas Street
  • 11
    Dec 2024
    10:00 AM - 12:00 PM

    Chelan County Civil Service Commission

    Posted by: Human Resources

    The Chelan County Civil Service Commission will be meeting on December 11, 2024.

    Chelan County Commissioners Office, CM Conference Room 1
  • 04
    Dec 2024
    09:00 AM - 11:00 AM

    Hearing Examiner - December 4, 2024

    Posted by: Community Development

    Chelan County Administrative Building or zoom
  • 26
    Nov 2024
    09:30 AM - 10:30 AM

    Public Meeting: Public Canvassing Board Meetings

    Posted by: Chelan County Elections

    The Canvassing Board of Chelan County, pursuant to RCW 29A.60.160, will hold public meetings at the dates and times listed below. The meetings of the Canvassing Board are open, public meetings under the applicable provisions of chapter 42.30 RCW, and each meeting shall be continued until the activity for which the meeting is held has been completed.

    Chelan County Auditor’s Office