Stormwater

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Clean Water Starts with You!

Carla Staedter, City of Tigard Project Coordinator, discusses the importance of stormwater management in addressing erosion, water quality, and flooding. She describes how the stormwater fee allows the city to address these three areas.

What You Can Do

The Tualatin River is a vital resource to our region. We all have a role in the work of ensuring its health and vitality.

Learn more: Why Watersheds Matter
Attend a Workshop or Webinar: Free workshops and field days about simple practices to conserve natural resources in our backyards, community spaces, farmlands, forests, and waterways.
Helpful, simple ways to make a big difference: Get tips on things you can do indoors, outdoors, and with others
Get out on the river: Rent a canoe, kayak or stand-up paddle board in Cook Park from the Tualatin Riverkeepers.

Increased Service

The Tigard stormwater surcharge increased by $3.50 on January 1, 2020 to fund enhanced stormwater management efforts in Tigard. After 30+ years without a guiding plan, the city now has a Stormwater Master Plan to address many erosion, water quality and flooding issues. Key projects getting underway soon:

Kruger Creek Stabilization
Kruger Creek is experiencing severe erosion in the Bull Mountain area. This erosion is threatening slope stability and the safety of sewer, stormwater, streets and private infrastructure located near the creek. Design will start soon on needed stream improvements extending from Bull Mountain Park, under SW Greenfield and SW Gaarde Streets

Frewing Street
Construction to replace undersized and aging stream culvert and storm pipelines will occur this winter.

Red Rock Creek Stabilization
Planning is underway to define an extensive creek and greenway improvement project to address severe streambank erosion that has undercut sewer lines, plugged culverts and destroyed habitat through the Tigard Triangle. Creek stabilization and greenway enhancement, including a potential trail, will be designed and constructed over several years starting in 2022.

Money Saving Measures

Year-Round Maintenance - Staff work year-round maintaining Tigard water quality facilities to keep them functioning efficiently (these are ponds, swales and rain gardens that cleanse and slow down stormwater runoff before it enters pipes and creeks.

Major Maintenance
A regular program of proactive vs. reactive maintenance fixes things before they worsen, saving money and minimizing disruption.

Our Team

Stormwater — from rain and snowmelt — is collected and treated by structures designed, built or permitted by our team before it is released into local waterways. Regular maintenance of these structures protects our environment and the Tualatin River.

The portion of the system maintained by the City of Tigard includes:

Miles of pipe - 135
Catch Basins - 4,801
Water Quality Facilities - 240

We partner with Clean Water Services who maintains large pipes and facilities.

Key Performance Indicators

Miles of pipe inspected annually - 21
Miles of pipe cleaned annually - 21
Street lane miles swept monthly - 346

Meet Our Staff

Stormwater System Plan

Tigard’s Stormwater System Plan is a plan to promote healthy creeks. The Plan recommends policies, programs, and capital improvements to address erosion, water quality, and flooding.

Please Note: The reported dollar amounts in the following Fact Sheets are current as of budget adoption dates, or system plan adoption dates, and will be updated as projects progress.

Study Area Fact Sheets

Tualatin River Tributaries

Implementation Plan

Capital Improvement Project Fact Sheets

Gallin Stream & Culvert Improvements

Derry Dell West Stream Protection

Derry Dell East Stream & Culvert Improvements

SW 116th Avenue Property Acquisition and Floodplain Storage

SW Dartmouth Regional Wetland Detention Pond

Kruger Creek Ann Court Bank Stabilization and Wetland Enhancement

Kruger Creek Knickpoint Stabilization & Stream Restoration

Fanno Creek Stream Stabilization at Arthur Court

Bagan Park Stream Restoration & Water Quality Enhancement

Gaarde Street Greenway Detention & Sewer Line Protection

Hunter's Glen Pond Rehabilitation

Red Rock Channel Stabilization & Sanitary Sewer Protection

North Dakota Street Stream Restoration and Detention

Oak Street Property Acquisition and Floodplain Restoration

Knez Wetland and Riparian Enhancement

Red Rock Floodplain Reconnection Upstream West

Red Rock Creek Grade Control & Culvert Improvement

Red Rock Creek Daylighting and Riparian Restoration

Capital Improvement Program Rating and Ranking Protocol

Program Recommendation Fact Sheets

Tigard Triangle Stormwater Implementation Plan

Computerized Maintenance Management System Database Update

Culvert Rehabilitation, Maintenance and Replacement Program

Storm Drainage Major Maintenance Program

Greenway Restoration, Establishment & Maintenance

Public Outreach Program

Water Quality Facility Rehabilitation Program

Technical Assistance Program

Pilot Projects Summer Lake Water Quality

Washington Square Mall Retrofit Plan

Detention Pipe Retrofit Study and Pilot Project

Capital Improvement Projects

Facility Name	Address
121st Avenue Bridge and Summer Creek Bank Stabilization (94057)	13125 SW Hall Blvd Tigard, OR 97223
Ash Avenue and Ash Drive Stormwater System and Pavement Repair	Ave Avenue and Ash Drive Tigard, OR 97223
Gaarde Street Greenway Detention and Sewer Project (94050)	Gaarde Street Tigard, OR 97223
North Dakota Street Stormwater Improvements	SW North Dakota Street Tigard, OR 97223
Red Rock Creek Stabilization and Enhancement	Red Rock Creek Tigard, OR 97223
Storm Drainage Major Maintenance Program	Citywide Tigard, OR 97223
Stormwater System Plan Update (94051)	Citywide Tigard, OR 97223
Water Quality Facility Rehabilitation Program	Citywide Tigard, OR 97224