2008 city of portland stormwater management manual

As each project meets the requirements of this manual, it will contribute to achieving these important citywide goals. Stormwater management the city of portland, oregon. Portland s investments in stormwater projects and programs are in response to these regulations as well as our local goals. The portland manual is the result of significant investment, research. Official website for the city of sandy, oregon sand filters. See the portland stormwater management manual for a more comprehensive list of appropriate plants. Resources and references this appendix provides references for city program and regulations relating to the design, construction, permitting and maintenance of stormwater management and conveyance facilities.

The 2016 stormwater code and manual became effective on january 1, 2016. Stormwater management manual the city of portland, oregon. The swmps and any departmentapproved amendments thereto, are hereby incorporated into the permit by reference. Examples of approved stormwater management facilities include landscaped swales, stormwater planters, vegetative filters, and landscape or underground infiltration. Our stormwater codes also satisfy the city s obligation to comply with our municipal stormwater discharge national pollutant discharge elimination system. Stormwater regulations and permits the city of portland. Project designers have the option of using the 2008 stormwater management manual or the 2014 manual until april. The stormwater management manual swmm provides policy and design requirements for stormwater management throughout the city of portland.

In response to these regulations, the city established stormwater management performance standards in april 2009 and more recently was awarded funding from casco bay estuary partnership develop a webbased stormwater management manual. Soakage trenches official website for the city of sandy. Water from rooftops is diverted into the trench, where pollutants are filtered from the water and groundwater is recharged through infiltration. The guidelines in this manual shall be used in the development of erosion and sedimentation control plans required for submittal to the city and borough of juneau. As design standards for stormwater quality, the city engineer will accept stormwater quality facilities designed pursuant to the policies and procedures of the city of portland bureau of environmental services bes i n its stormwater management manual. Eugenes stormwater management manual is a modified version of portlands stormwater management manual. Stormwater management is a key element in maintaining and enhancing livability within the city of oregon city city. Environmental services revises the stormwater management manual to meet current regulatory requirements and to provide current technical standards. Rain washes over these hard surfaces and becomes stormwater. The requirements in the manual apply to all development, redevelopment, and improvement projects within the city of portland on private and public property and in the public rightofway. Environmental services manages the city s stormwater system and works with residents, businesses and property owners to reduce stormwater pollution, promote private stormwater management and protect our rivers, streams and groundwater.

Urban stormwater management rebecca leonardson rui teles brooke ray smith. Update to the stormwater management manual city green. Environmental services revises the stormwater management manual to. The 2018 swmm updates and consolidates stormwater management requirements previously located. Beginning on april 2, 2014, project designers must use the 2014 swmm. Official website for the city of sandy, oregon stormwater. We were originally richland station, named for the railroad depot erected here for the thennew louisville and nashville railroad, with its first scheduled stop in the small settlement on october 31, 1859. Overview on october 3, 2016, the city of portland board of mayor and alderman passed ordinance no. Planycs water quality goal is to improve public access to our.

Stormwater division objective oregon city provides a safe and reliable stormwater system and implements watershed protection and restoration actions that consistently promote surface water quality and stream health. City stormwater management manual updated daily journal. Property owner responsibilities for stormwater management. Portland manages stormwater as a valuable resource through green infrastructure, along with pipes, sumps and. There is a direct link between stormwater runoff and the city s surface and ground water quality and quantity. This manual of stormwater best management practices supports the city and borough of juneaus cbjs building regulations excavation and grading code 19.

Stormwater quality design manual for the sacramento region july 2018 page 41 chapter 4. Stormwater facility science the surface area of a typical stormwater facility allows runoff to pond and evaporate while sediments settle into a layer of mulch. Page 1 of 3 updated 2122016 property owner responsibilities for stormwater management facilities in the city of portland did you know that since 1999 the city of portland has required the building and maintenance of. City of south portland stormwater management program. Stormwater manual table of contents minnesota welcome to the minnesota stormwater manual website. The stormwater management manual swmm allows the city of portland to protect both watershed resources and infrastructure investments with every development or improvement. From january 2, 2014 project designers had the option of using the 2008. A soakage trench is a shallow trench in permeable soil that is backfilled with sand and coarse stone, and lined with filter fabric.

This sustainable stormwater management plan is a key initiative of planyc, the city s plan for a greener, greater new york. The organic mulch layer prevents soil bed erosion and retains moisture for plant roots. Portland s stormwater management manual is an example of a thorough document with policy and design requirements developed for a municipality west of the cascades. Eugenes stormwater management manual july 2008 was adopted concurrent with the ordinance for stormwater development standards for designing, operating and maintaining approved stormwater facilities. From city of portland 2004 stormwater management manual. Examples of green stormwater management permeable paving for infiltration. Portland is known for the rain we receive 37 inches of rain in an average year.

The federal clean water act, safe drinking water act, and endangered species act require the city to manage stormwater runoff to protect water quality in rivers and streams, protect watershed health, and protect groundwater as a drinking water resource. The city of south portland must comply with state and federal regulations to reduce the harmful effects of stormwater runoff. New york state stormwater management design manual references cerrelli, g. The city requires all new developments to treat and detain stormwater from the 2, 5, 10 and 25 year storm events to predevelopment conditions, as defined in the city of portland stormwater management manual. The city of tacoma regularly updates its stormwater management manual previously called the surface water management manual to comply with the most recent national pollutant discharge elimination system npdes permit, to clarify information and to incorporate updated policies. As of january 2, 2014 project designers have the option of using the 2008 stormwater management manual or the 2014 swmm. Posts about stormwater written by city of portland, tn. The portland manual is the result of significant investment, research, and field testing and is a valuable resource for other communities and agencies in the state. But in the city, streets, buildings and parking lots cover the ground. The swmp is the proposed swmp submitted with the npdes permit reapplication and amendment received by the department on august. Stormwater is rain or snow melt that runs over impervious surfaces such as streets, parking lots, driveways, and roof tops. Infiltration sand filters allow water to infiltrate through the sand and into the ground. The city of portland offers several ways to pay your bill. Inka bajandas in architecture and engineering january 16, 2014 12.

The goal of this stormwater management manual is to protect water quality, reduce stormwater volumes to below a threshold that negatively impact streams, and provide other standards that meet the intent of requirements from deq and relevant city policies and goals. In january 2014, the city released an updated version of the swmm. Stormwater management is a toolbox of methods used to improve water quality and reduce the quantity and rate of stormwater runoff to protect streams, aquatic life and human health. Stormwater and grading design standards city of oregon city. The city has adopted the 2008 city of portland stormwater management manual as the design manual of bmp design. Our stormwater regulations protect people, property, and the environment from damage caused by stormwater runoff. City of portland stormwater management manual august 2016 c1 appendix c. Use this pdf to track your time and work pdf document, 2kb category. Sand filters, like planter boxes, are structural reservoirs that filter pollutants from stormwater and slow water runoff. In general, greater amounts of impervious surfaces result in greater volumes of stormwater and more potential pollutants.