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Presidents Day closure

Most City of Portland offices will be closed Monday, Feb. 17, to observe Presidents Day.

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Portland is a Sanctuary City

Find sanctuary city resources from the City of Portland's Immigrant & Refugee Program, including free legal services and state resources for reporting hate crimes, bias incidents, discrimination, and violations of Oregon's sanctuary laws.

Services, Guides, and Information

52 services and resources found
The 2025 Stormwater Management Manual (SWMM) has replaced the 2020 manual. The manual sets City policy and design requirements for stormwater management on all development, redevelopment, and improvement projects on both public and private property in Portland.
Portland’s watershed report cards provide an overview of watershed health in the city. These science-based report cards summarize complex scientific information from the city’s environmental monitoring program and other data.
Spanning 20 years at a ratepayer investment of $1.4 billion, the Big Pipe Project has reduced combined sewer overflows to the Willamette River by 94 percent and to the Columbia Slough by 99 percent. With most overflows eliminated, the Willamette is cleaner than it’s been in decades.
The At-Risk Species List is a subset of the Special Status List that includes the species most vulnerable and of highest concern. On this page, you will find the species on this list.
Environmental Services' Columbia Slough Sediment Program works closely with the Oregon Department of Environmental Quality to investigate environmental conditions in the slough and implement actions to prevent pollution and improve watershed health.
Eating fish is good for you and an excellent source of protein. However, fish from the Columbia Slough may contain contaminants that make the fish harmful to eat. Learn how to fish smart and eat safe to protect the health of you and your family.
The Columbia Slough watershed includes roughly 32,700 acres. It encompasses land and waterways in north and northeast Portland, Gresham, Fairview, Wood Village, and Maywood Park. The slough watershed supports a wide range of wildlife, some of which are found nowhere else in Portland.
This report card summarizes conditions in the Columbia Slough watershed. Highly developed, this watershed faces challenges in improving its habitat and fish and wildlife scores. Thanks to decades of investment, water quality and hydrology scores have improved.
Crystal Springs Creek is a major tributary to Johnson Creek and is the first stream to earn the Salmon Sanctuary designation.
The Fanno Creek watershed spans more than 20,000 acres in the west and southwest of Portland. Encounter its diverse fish and wildlife on the Fanno Creek Trail and Greenway or several Portland parks.
This report card summarizes conditions in the Fanno Creek watershed. After 25 years of effort, water quality and habitat scores have greatly improved. The area's fish and wildlife will benefit from new green infrastructure projects.
Fish have helped shape ecosystems in Portland for thousands of years. There are more than 40 species of fish in the city’s rivers and streams. More than half of them are native to the Pacific Northwest.
Resident fish are those fish that spend their whole lives in the Columbia Slough so they have greater amounts of contaminants in them. The health authority advises eating only one fillet meal each month of these fish, except for the Large-scale Sucker.
The City of Portland completed work on the Foster Floodplain Natural Area in 2012. The restored portion of Johnson Creek and its reclaimed floodplain are located south of SE Foster Road in Lents. Restoration of the 63-acre site transformed a flood-prone neighborhood into a beautiful natural area.
Low-lying areas by creeks and rivers are called floodplains and have a higher chance of flooding. Do you live or work in a floodplain? Find out about your flood risk and ways to protect yourself and your property.
About 135 species of birds breed around Portland. The majority of these birds are federally protected under the Migratory Bird Treaty Act, which protects the birds, their nests, eggs, and feathers. Learn about best management practices to protect birds and their nests when working on City projects.
Portland may be the Rose City, but we’re just as well known for our rainy weather. We get an average of 37 inches of rain each year. You might wonder, “where does all that rain go?” Read on to learn how rain becomes stormwater, and how Environmental Services manages the challenges it causes.
You can help keep our rivers, streams, and watersheds healthy. There are many ways to get involved, from simply picking up after your dog to volunteering for a cleanup event.
Common reed is harmful to wetlands and estuaries, which are very important habitats. Wetlands and estuaries help clean our water and provide food and safe places for many of Oregon’s birds and animals. Once common reed is in these habitats, they are no longer good places to live.
Brought to Oregon as a garden plant, garlic mustard is now moving into and through our forests. It grows in dense patches that push out native wildflowers and tree seedlings by taking water and nutrients. Ultimately, this can affect whether or not new trees replace old trees that die.
Be cautious of lesser celandine at plant swaps or when sharing plants with friends and neighbors. It was once sold as an ornamental plant and has become common throughout Portland. Lesser celandine is known for blanketing yards and natural areas.
Although not currently known to be in Portland, Russian knapweed is a Required Eradication species. Infestations cause big problems for Oregon's farmers and ranchers. Growing in dense clumps, Russian knapweed forces out crops or native plants and is inedible to livestock and wildlife.
Invasive plants can reproduce rapidly and spread quickly, taking space, nutrients, water, and light from other plants. If uncontrolled, they can damage parks, streams, and infrastructure. Learn more about the damage caused by invasive plants.

Johnson Creek Flood Gauge

External Resource
This resource from the National Weather Service shows the current and predicted flow and flood stage of Johnson Creek at the Sycamore Gauge below Powell Butte and near SE Foster Road and 150th Avenue.
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