High Quality Content by WIKIPEDIA articles! Oaks Park is a modest amusement park located 3.5 miles (6 km) south of downtown Portland, Oregon in the United States near the Sellwood Bridge. The midway rides and 44 acres (178,000 m²) of grounds are small though it is popular for company picnics and special events such as the Fourth of July, Labor Day, and Oktoberfest. Otherwise the park is usually uncrowded. The park was built by the Oregon Water Power and Railway Company and opened on May 30, 1905, during a period when trolley parks were often constructed along streetcar lines. By 1985, the park was donated to a not-for-profit corporation. The park celebrated 100 years of continuous operation in 2005, making it among the oldest in the US.