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The Willamette is nevertheless clean enough to be used by cities such as Corvallis and Wilsonville for drinking water. [150] Since pollution concerns are primarily along the lower river, the Willamette in general scores relatively high on the Oregon Water Quality Index (OWQI), which is compiled by the Oregon Department of Environmental Quality ...
Arising at 438 feet (134 m) above sea level, the river loses 428 feet (130 m) in elevation between source and mouth or about 2.3 feet per mile (43 cm per km). The gradient is slightly steeper from the source to Albany than from Albany to Oregon City. At Willamette Falls, the river plunges about 40 feet (12 m).
Oregon State Route 34 is the main connector from Corvallis to I-5, the main arterial north–south route though the state of Oregon, which lies 10–12 miles to the east of the city. Continuing on OR 34 another 9–10 miles east of I-5 is the city of Lebanon, Oregon the 3rd largest city of the Albany-Corvallis-Lebanon CSA .
Marys River arises in western Benton County at 659 feet (201 m) above sea level and falls 452 feet (138 m) between source and mouth to an elevation of 207 feet (63 m). [3] [1] The main stem, formed by the confluence of the East Fork Marys River and the West Fork Marys River, begins at about river mile 40 (RM 40) or river kilometer 64 (RK 64) north of Marys Peak in the Central Oregon Coast ...
The Santiam River / ˌ s æ n t iː ˈ æ m / is a tributary of the Willamette River, about 12 miles (19 km) long, in western Oregon in the United States. Through its two principal tributaries, the North Santiam and the South Santiam rivers, it drains a large area of the Cascade Range at the eastern side of the Willamette Valley east of Salem and Corvallis.
The city of Corvallis began using the Rock Creek watershed on Marys Peak for its municipal water supply in 1906. As logging operations spread throughout the area, the Corvallis city government bought land in the Rock Creek watershed to preserve its water quality. [15] 13th Annual Mary's Peak Shrine Trek
Oak Creek is a tributary, about 3.5 miles (5.6 km) long, of Marys River in Benton County in the U.S. state of Oregon. The stream descends from forested hills north of Corvallis through the northwest part of the city and across the campus of Oregon State University.
The Yaquina River (/ j ə ˈ k w ɪ n ə / yə-KWIN-ə) is a stream, 59 miles (95 km) long, on the Pacific coast of the U.S. state of Oregon. [2] It drains an area of the Central Oregon Coast Range west of the Willamette Valley near Newport. [3] It rises in the mountains west of Corvallis along the county line between Benton and Lincoln ...