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SE Claybourne Sewer Extension Project

Construction type
Sewer and Stormwater
Project status
Active

Environmental Services is finishing up a public sewer extension in your neighborhood. The SE Claybourne Street and 135th Avenue Sewer Extension Project installed up to 4,120 feet of new main line public sewer pipe. This project will help protect public health, water quality and the environment.

Construction will be completed by the end of 2020. Residents who are connecting to the new public sewer will receive a formal notice of completion in 2021.
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Project Area

The map below illustrates the locations of the pipe extensions and new manholes for this project. 

What's Happening Now

Crews are completing pavement restoration and finishing up final clean up and "punchlist" items.  Please note that paving can't occur during wet weather or when it is very cold.  This means that it can be very difficult to schedule paving where we can be assured that pavement restoration will be successful. Because weather during the fall and winter can change suddenly, final pavement restoration efforts may occur with little or no notice. We will strive to get pavement restoration completed as soon as possible, but it is difficult to schedule this work predictably in advance. 

We apologize for the inconvenience. Thank you for your understanding and patience. 

Cesspool/Septic Connections

Bureau staff have been working directly with property owners in the area who have cesspools or septic tanks.  For questions about your planned connection, please contact Tina Wilson at Tina.Wilson@portlandoregon.gov or 503-823-7790 as soon as possible.

Frequently Asked Question (FAQs)

From Residential Septic to Public Sewer

Environmental Services (BES), your public sewer and stormwater services provider, is responsible for building and maintaining the public sewer collection and treatment system. Most developed properties in Portland are connected to the public sewer system, but some properties still use private septic systems and are not connected to the city sewer. As a septic system ages, its chance of failing and releasing untreated sewage into the environment increases. 

Rather than wait for individual septic systems to fail, BES is identifying areas where building new sewer lines will extend the public sewer system to multiple residential properties on septic systems, help prepare them for system failures, and provide them a connection to the public sewer. The following questions and answers apply only to residential properties. 

Why now and why here?

Environmental Services has selected this area for a variety of reasons. First, a number of private septic systems have failed and due to state regulations are not allowed to repair their existing systems or install new systems. Therefore, they must connect to the public sewer system. 

Second, this area has a high density of homes using private septic systems. Because building a new public sewer will provide public sewer service to about 90 homes on septic, this project provides a cost-effective use of the city’s current sewer extension budget. The project shares financial responsibility among all affected property owners and the City of Portland for building and paying for public sewer extensions for private property connections. 

In addition, the average age of the homes and septic systems in this area is more than 50 years, and more failures are predicted by our engineers. Failed septic systems can contaminate adjacent properties and pose a threat to Johnson Creek water quality. This sewer extension project will help protect water quality, public health and the environment. 

The project will bring reliable sanitary sewer service to properties in this area and allow property owners time to budget for the costs of connecting to the public sewer extension and decommissioning their private septic systems. 

Why connect to the public sewer?

Connecting to the public sewer system is required by city and state plumbing codes. The city requires all properties within the city to connect to the public sewer system when a public sewer line is made available, or when a septic system fails. When a septic system fails, the state requires connection to a public sewer line within 300 feet of the affected property. 

A failing septic system can contaminate groundwater, wells and nearby water bodies, which poses a threat to public health, water quality and the environment. Clean up of contamination can be costly. 

What is the project timeline? 

The SE Claybourne Street and 135th Avenue Sewer Extension Project will complete construction by the end of 2020. 

What is the deadline to connect my property to the new public sewer?

After the city completes construction of the new public sewer line, the city will mail a notice to each property owner. Mandatory connection of all properties will be required within three years after this notification is sent. Septic systems that fail before the three year deadline will be required to connect to the public sewer as soon as possible. 

What happens if a property owner doesn’t connect to the public sewer by the three-year deadline?

The city requires developed properties to connect to the sewer system within three years after sewer service becomes available. The city also provides low interest loans to finance connection costs and gives qualifying property owners the option of delaying connection, or even delaying payment, under special circumstances. 

A property owner who doesn’t connect to the sewer system within three years after sewer service becomes available could face enforcement actions. Portland City Code 17.33.100 Connection Enforcement authorizes the city to deem a property as a public nuisance for failure to connect to the public sewer. In addition, BES could connect the property to the public sewer if the property owner fails to do so. The costs associated with sewer connections made under enforcement are substantially higher than those done voluntarily and will result in a lien on the property.   

How do I decommission my residential septic system and connect to the public sewer? 

BES recommends that property owners hire a professional plumbing contractor to decommission their residential septic system and install a private sewer line to connect their property to the public sewer. 

Typically, the contractor will develop a scope of work and bid price, which usually includes the work and costs associated with obtaining required permits. 

BES recommends that property owners work with licensed and bonded contractors; look for an Oregon Construction Contractors Board license number or CCB#. 

Decommissioning a septic system generally happens at the same time a property is connected to the public sewer and requires a permit and inspection from the City of Portland Bureau of Development Services (BDS). 

Property owners doing the work themselves are advised to contact BDS before beginning any work for a full description of the process and code requirements. BDS is located at 1900 SW 4th Avenue. Call BDS at 503-823-7300 for more information. 

Whether a property owner hires a contractor or does the work themselves, it is important to work with BDS to ensure compliance with plumbing codes and to ensure that the required permits are obtained and properly recorded. 

Be sure to obtain at least three competitive bids before agreeing to hire a contractor. It is also a good idea to ask friends and family for recommendations. Follow this link for a list of plumbing contractors in the Portland area: https://www.portlandoregon.gov/bes/article/455516

What does it cost property owners to connect to the public sewer? 

Both public and private costs may apply to decommission a septic system and connect to the public sewer. 

The following public charges may apply (rates as of Fiscal Year 2019-20): 

Property owners are required to reimburse the City of Portland for a portion of the costs to extend the public sewer into their area. 

  • Residential system development charge is $6,917; 

  • Sewer branch charge (sewer connection fee) is $6,967; 

  • Sewer line charge is $1.87 per assessable square foot (ASF). The ASF is calculated by measuring the width of frontage (property line running parallel to the city street and sewer line multiplied by the depth of the property, not to exceed 100 feet for residential properties. Exceptions to this rule include nonresidential properties, flag lots, properties without frontage, and properties with atypical alignments to the street and/or public sewer. 

These charges and fees are due to the city before a permit will be issued to decommission a septic system and connect to the public sewer. They are set by City Council, reviewed annually and subject to change on the first of July every year. 

In addition to the public charges and fees above, private plumbing costs will apply: 

  • Costs of hiring a contractor to decommission a septic system, and 

  • Costs of hiring a contractor to install a service lateral for their property. 

BES recommends that property owners hire a professional plumbing contractor to decommission their residential septic system and install a service lateral for their property 

Is financial assistance available? 

Financial assistance is available for property owners who meet certain qualifications: 

  • City of Portland Loan Contract: The city offers this loan contract for property owners to finance the costs of constructing public sanitary sewers. The residential system development charge, sewer branch charge and sewer line charge can be financed using a City of Portland Loan Contract. 

  • Private Plumbing Loan: The city offers this loan for property owners to finance the costs of hiring sewer contractors to decommission septic systems and connect properties to the public sewer. 

  • Safety Net Low Income Loan: The city offers this loan for property owners who qualify to finance the costs of constructing public sanitary sewers and hiring sewer contractors to decommission septic systems and connect properties to the public sewer. 

  • For more information about financial assistance and how to apply for a loan, contact the Required Sewer Connection program at 503-823-4114 or visit www.portlandoregon.gov/bes/article/298341

What are the monthly sewer and stormwater charges from the City of Portland? 

After you connect your property to the public sewer system, a sewer and stormwater charge will be added to your water bill from the City of Portland. This charge will cover sewage and storm water treatment, operation, maintenance and debt service for the sewer and storm water system. Currently, the average Portland household is paying $200 to $250 a quarter for these services. 

For more information about your sewer/stormwater/water bill, visit http://www.portlandoregon.gov/bes/31019

What if a septic system fails suddenly and unexpectedly? 

Currently when a septic system fails, a property owner will have to determine if a public sewer line is available. In the best case scenario, a public sewer line is already located in the street and connecting to it is as simple as hiring a sewer contractor to do the work. In the worst case, a property owner may have to extend the public sewer line. This typically means additional city permits and higher costs. 

What authority does the city have to require connection to the public sewer system, charge fees, and conduct enforcement? 

Chapter 17.33 of the Portland City Code authorizes the city to do the following: 

  • Facilitate timely connection of individual properties to the public sewer system when a public sanitary sewer is available. 

  • Provide for financial assistance to property owners required to make a new sewer connection. 

The following city codes are available online at www.portlandoregon.gov/citycode/28860:  

  • 17.33.030 Sewer Connection Mandated 

  • 17.33.040 Mandated Sewer Service Connection Charges 

  • 17.33.100 Connection Enforcement 

How do I get more information about this project?  

Bureau staff have been working directly with property owners in the area who have cesspools or septic tanks.  For questions about your planned connection, please contact Tina Wilson at Tina.Wilson@portlandoregon.gov or 503-823-7790 as soon as possible.  

If you have questions or concerns about the project, please contact Aaron Abrams by phone at 503-823-2827 or by email at Aaron.Abrams@portlandoregon.gov. 

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