Sea Level Rise Planning

Working together to develop a Sea Level Rise Response Plan

A sea level rise response plan was developed in 2018-2019 through a joint planning effort with the City of Olympia, Port of Olympia, and LOTT. This work builds on previous planning efforts related to climate change and sea level rise. Working together ensures a coordinated strategy for protecting downtown Olympia and the Port peninsula from the impacts of sea level rise. The plan identifies needed actions, estimated costs, implementation schedules, and responsibilities. The plan, and more information on the planning effort, is available on the City of Olympia’s Sea Level Rise webpage.

Sea Level Rise Joint Administrative Committee
This committee includes one elected official and an alternate from the City of Olympia, LOTT Clean Water Alliance, and the Port of Olympia. The group was formed by interlocal agreement to establish the governance structure for implementing the Olympia Sea Level Rise Response Plan.

The newly formed Joint Administrative Committee met for the first time on August 2020. The meeting was an opportunity for committee members to provide initial feedback regarding governance structure type, membership, and operating procedures. At the September 2020 meeting, the committee discussed an interlocal agreement and by-laws to establish a governance structure for the implementation phase of the Olympia Sea Level Rise Response Plan.

LOTT’s Budd Inlet Treatment Plant
The treatment plant is located in an area susceptible to flooding from sea level rise. This puts plant structures at risk from inundation and plant processes at risk from increased peak flows due to the combined stormwater/sewer piping system in downtown Olympia. LOTT completed a vulnerability assessment for the Budd Inlet Treatment Plant in 2014, which focused primarily on risks to the physical structures at the plant site. The new Sea Level Rise Response Plan focuses on options for protecting downtown Olympia, including the plant site, and provides a better understanding of actions needed to mitigate risks from the combined storm/sewer system.

Preparing for Sea Level Rise (PDF)

Vulnerability Assessment (PDF)

Vulnerability Summary (PDF)