Pacific Right Bank Flood Protection Project

Project overview

The Pacific Right Bank Flood Protection project is located on the right bank of the White River in the City of Pacific. The project will extend from the BNSF Railway south to the King-Pierce County boundary line, as shown on the map below. The King County River and Floodplain Management Section is overseeing the design and construction of this project as service provider to the King County Flood Control District.

The King County Flood Control District and its service provider, King County, are proposing to build a new flood protection facility set back from the existing riverbank in the City of Pacific.

The Pacific Right Bank Flood Protection Project is located on the right bank of the White River in the City of Pacific. The project will extend from the BNSF Railway south to the King-Pierce County boundary line.  

As part of the Pacific Right Bank Flood Protection Project, King County has been investigating a former dumpsite under Pacific City Park for cleanup under the guidance of the Washington State Department of Ecology’s Voluntary Cleanup Program. King County is conducting additional soil, groundwater, and vapor sampling as part of the multi-step dumpsite investigation.

Draft Environmental Impact Statement and Public Hearing

Share your ideas for the future of Pacific City Park!

King County has prepared a Draft Environmental Impact Statement (Draft EIS) covering aspects of the built and natural environment for five project alternatives, including a no-action alternative

What do you like about the alternatives? What are your concerns? Share your comments on the information in the Draft EIS. Your feedback will help inform the project design.

The public comment period for this project is open from October 24, 2024 to December 13, 2024. Comments must be received by December 13, 2024 at 5 p.m. PST. 

Submit comments:

• At the online open house, where you can learn more about the project.
• At the online public hearing, scheduled for November 19, 2024 from 6:30 p.m. to 8:00 p.m. Register for the hearing at the online open house.
• By email: PRBcommentemails@kingcounty.gov 
• By mail: Mary Strazer | KC DNRP WLRD | 201 S Jackson Street, Suite 6300 | Seattle, WA 98104-3855

Project goals

• To substantially reduce the potential for White River flooding in the City of Pacific.
• To improve environmental conditions along this portion of the White River.

Project schedule

Project documents

Draft Environmental Impact Statement

Full PDF of the Draft Environmental Impact Statement

Full PDF of all Appendices

Draft EIS by Chapter

Front Matter
Executive Summary
Chapter 1 - Introduction
Chapter 2 – Description of Alternatives
Chapter 3 – Existing Conditions and Potential Impacts
Chapter 3-1 – Aesthetics, Light, and Glare
Chapter 3-2 – Air Quality
Chapter 3-3 – Energy and Natural Resources
Chapter 3-4 – Environmental Health
Chapter 3-5 – Cultural Resources
Chapter 3-6 – Geology and Soils
Chapter 3-7 – Housing, Land, and Shoreline Use
Chapter 3-8 – Noise
Chapter 3-9 – Public Services and Utilities
Chapter 3-10 – Park Use and Recreation
Chapter 3-11 – Transportation
Chapter 3-12 – Vegetation, Fish, and Wildlife
Chapter 3-13 – Water Resources
Chapter 3-14 - Wetlands
Chapter 4 – References
Chapter 5 – List of Preparers
Chapter 6 – Distribution List

Other Project Documents

Frequently Asked Questions (308 KB, PDF) 

Hydraulic Modeling and Geomorphic Response Assessment, 2021 (34.0 MB, PDF)

Government Canal Pump Station Alternatives Analysis Technical Memorandum, 2021 (7.32 MB, PDF)

Alternatives Analysis Technical Memorandum, 2020 (10.6 MB, PDF)

Wetland and Ordinary High Water Mark Delineation Report, 2019 (12.6 MB, PDF)

Potential Project Concepts Analysis to Inform Development of EIS Alternatives Technical Memorandum, 2019 (7.56 MB, PDF)

Remedial Investigation Report: Pacific City Park, 2019 (60.79 MB, PDF)

Supplemental Remedial Investigation Report: Pacific City Park, 2019 (34.55 MB, PDF)

Pacific Park Environmental Investigation, 2017 (9.07 MB, PDF)

Pacific Park Phase II Environmental Site Assessment, 2016 (19.11 MB, PDF)

Pacific Park Phase I Environmental Site Assessment, 2015 (23.69 MB, PDF)

Determination of Significance and Scoping Notice, March 2018 (119 KB, PDF)

Environmental Scoping Report, August 2018 (4.23 MB, PDF)

Additional project documents available by request: mstrazer@kingcounty.gov