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Mason Gulch Landscape Management

Mason Gulch Trees

Mason Gulch History

Mason Gulch consists of 36 contiguous open space acres located in North Tacoma. Steep, forested slopes surround the wetland/creek complex at the bottom elevations. This area provides many environmental benefits including stormwater management, wildlife habitat, and water quality protection.

 

Creek flow is plentiful as it was used from the late 1800s to the 1920s as a water supply for North end residents of the City of Tacoma. In 1926, Tacoma Public Utility’s Water Department purchased the property with the intent to use as a water supply. The results of a hydrologic report in 1964, determined that this use would be complicated due to the geology, springs, and unstable soils.

 

In 1966, the North End Sewer Treatment Plant was built at the mouth of the gulch and currently uses some of the creek water during its processing of sewage. In 2014, the properties were transferred to the City of Tacoma’s Environmental Services Department with the intent to manage the properties responsibly with a focus on vegetation to benefit both surface water quality and quantity. A landscape management plan is currently being prepared in order to address responsible property management of the gulch.

 

Watch a video describing the goals of the LMP.

Tacoma Report September 23, 2017

Mason Gulch Stream

Watch a video highlighting restoration work at Mason Gulch. 

Urban Green - Mason Gulch - September 29, 2017

 

In a hurry? View the Mason Gulch One Page Summary.

 

Contact

For more information regarding the progress of the Mason Gulch landscape management plan, please contact the City of Tacoma Mason Gulch Project Manager, Aris Efting at (253) 404-6905 or aefting@cityoftacoma.org.

 

Mason Gulch Landscape Management Plan

Staff have been working hard to balance the goals of the Landscape Management Plan (LMP) by improving slope stability and forest health, public safety and public views within the limits of the applicable regulations.

  

View the permitted Mason Gulch Landscape Management Plan

  

Management Unit (MU)    Planting Baseline (YO)    Monitoring Year 1 (Y1)    Monitoring Year 2 (Y2)   
  MU1 (North Half)   12/2016-01/2017 & 12/2017   08/2019   08/2020
  MU1 (South Half)   12/2019-01/2020   08/2020   08/2021
  MU2 Row 1 #1 Squares   12/2019-01/2020   10/2020   08/2021
  MU2 Row 2 #1 Squares   12/2020-01/2021   09/2021   Anticipated 08/2022
  MU2 Row 3 #1 Squares   Anticipated 01/2022   Anticipated 09/2022   Anticipated 09/2023

  

View the Mason Gulch LMP report for 2019/2020

 

Additional Resources

Baseline Conditions Assessment Report, GeoEngineers, November 2014

Daylighting of Mason Creek – Feasibility Analysis

Mason Gulch: A hidden paradise - The News Tribune, July 27, 2014