Tideman Johnson Natural Area is a city park of about 7.7 acres (3.1 ha) in southeast Portland

Portland, Oregon

Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

, in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Oregon

Oregon

Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

. Located at Southeast 37th Avenue and Tenino Street along Johnson Creek

Johnson Creek (Willamette River)

Johnson Creek is a 25-mile tributary of the Willamette River in the Portland metropolitan area of the U.S. state of Oregon. Part of the drainage basin of the Columbia River, its watershed consists of of mostly urban land occupied by about 175,000 people as of 2006...

, the site is named for a mid-19th century family named Johnson that encouraged public use of its land along the creek. The park has paved and unpaved paths for hiking. A loop trail and boardwalk off the Springwater Corridor

Springwater Corridor

The Springwater Corridor Trail is a bicycle and pedestrian rail trail in the Portland metropolitan area in Oregon, United States. It follows a former railway line of the same name in its route from Boring, through Gresham, to Portland, where it ends near the Eastbank Esplanade. A large segment...

 runs through the park.

Ecology

A good area for bird-watching, the park attracts owls, pigeons, kingfisher

Kingfisher

Kingfishers are a group of small to medium sized brightly coloured birds in the order Coraciiformes. They have a cosmopolitan distribution, with most species being found in the Old World and Australia...

s, and heron

Heron

The herons are long-legged freshwater and coastal birds in the family Ardeidae. There are 64 recognised species in this family. Some are called "egrets" or "bitterns" instead of "heron"....

s. In late spring and early summer, Tideman Johnson's big-leaf maples, alder

Alder

Alder is the common name of a genus of flowering plants belonging to the birch family . The genus comprises about 30 species of monoecious trees and shrubs, few reaching large size, distributed throughout the North Temperate Zone and in the Americas along the Andes southwards to...

s, and other trees are frequented by warbler

Warbler

There are a number of Passeriformes called "warblers". They are not particularly closely related, but share some characteristics, such as being fairly small, vocal and insectivorous....

s, grosbeak

Grosbeak

Grosbeak is a form taxon containing several species of seed-eating passerine birds with large beaks. Although they all belong to the superfamily Passeroidea, they are not a natural group but rather a polyphyletic assemblage of distantly related songbirds....

s and Mourning Dove

Mourning Dove

The Mourning Dove is a member of the dove family . The bird is also called the Turtle Dove or the American Mourning Dove or Rain Dove, and formerly was known as the Carolina Pigeon or Carolina Turtledove. It is one of the most abundant and widespread of all North American birds...

s. Other birds commonly seen in the park include sapsucker

Sapsucker

The Sapsuckers form the genus Sphyrapicus within the woodpecker family Picidae. All are found in North America.As their name implies, sapsuckers feed primarily on the sap of trees, moving among different tree and shrub species on a seasonal basis...

s, woodpecker

Woodpecker

Woodpeckers are near passerine birds of the order Piciformes. They are one subfamily in the family Picidae, which also includes the piculets and wrynecks. They are found worldwide and include about 180 species....

s, chicadees, and bushtit

Bushtit

The Bushtit is a long-tailed tit found in North America. It is the only species in the family found in the New World, and the only member of the genus Psaltriparus....

s. During a restoration project completed in 2006, workers identified 22 fish species in the creek at Tideman Johnson and counted 23 Chinook salmon

Chinook salmon

The Chinook salmon, Oncorhynchus tshawytscha, is the largest species in the pacific salmon family. Other commonly used names for the species include King salmon, Quinnat salmon, Spring salmon and Tyee salmon...

 and 107 steelhead

Rainbow trout

The rainbow trout is a species of salmonid native to tributaries of the Pacific Ocean in Asia and North America. The steelhead is a sea run rainbow trout usually returning to freshwater to spawn after 2 to 3 years at sea. In other words, rainbow trout and steelhead trout are the same species....

 trout.

Maintenance

Portland's Bureau of Environmental Services (BES) undertook the 2006 project to repair a sewer line that runs through the park. In 1922, when it was constructed, the Lents

Lents, Portland, Oregon

The Lents neighborhood in the Southeast section of Portland, Oregon is bordered by SE Powell Blvd. on the north, the Clackamas County line or City of Portland line on the south , SE 82nd Ave. to the west, and roughly SE 112th on the east. The NE corner overlaps with the Powellhurst-Gilbert...

Interceptor sewer was buried about 5 feet (1.5 m) beneath Johnson Creek. Over the years, the stream washed away the fill above the pipe, exposing it to possible damage. Workers surrounded the pipe with concrete during the project and covered it with rock. They also reshaped stream banks, planted 5,300 trees and shrubs, and added boulders and woody debris to the stream to prevent erosion and improve fish habitat.