Stormwater Master Plan

Storm Water Master Plan_1972 Cover

The City of Tualatin is currently in the process of finalizing a new Stormwater Master Plan. This Plan will replace the “Tualatin Drainage Plan”, which was adopted in 1972 (available below). Tualatin has experienced rapid growth and development over the last 20 years, resulting in a relatively new collection and conveyance system. Currently, the City manages approximately 93 miles of piped and open channel stormwater infrastructure. Projections indicate that the stormwater system will require additional expansion and upgrades to accommodate future growth.

A primary goal of the updated Stormwater Master Plan is to provide an overview of system improvements that will be necessary to address future growth, water quality, system maintenance, and capacity issues. The City is required to meet existing stormwater-related obligations and programs, which are documented in Clean Water Services Stormwater Management Plan (SWMP) and referenced in various intergovernmental agreements (IGAs).

The Plan will include project, program, and policy recommendations to improve and enhance drainage infrastructure and water resources throughout the City. Outcomes from this effort include a prioritized project list, subsequent program recommendations, and a financial analysis with rate recommendations to support the implementation of projects and programs. The new Stormwater Master Plan will also support the management and protection of natural resources such as wetlands, stream channels, riparian corridors, vegetated buffers, and green spaces. The City of Tualatin values its natural spaces and environmental systems that are available to the community, and we believe protecting and supporting these ecosystems is important for maintaining a livable and healthy city.  This means taking care of and managing our stormwater system.

The forthcoming Plan will guide both stormwater projects and the program’s priorities over a 10-year planning period, encompassing new regulatory and environmental standards, new and re-development activities and annexations, observed system deficiencies, and other relevant topics.

Public Involvement

Check out the Stormwater Master Plan Virtual Open House!