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.

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

• Kirt Bowers

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

Ash Creek

Ball Creek

Bull Mountain

Fanno Creek

Red Rock Creek

River Terrace

Summer Creek

Tualatin River Tributaries

Implementation Plan

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