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The Willamette Falls is a natural waterfall in the northwestern United States, located on the Willamette River between Oregon City and West Linn, Oregon. The largest waterfall in the Northwest U.S. by volume, it is the seventeenth widest in the world. [ 1 ]
Willamette Valley map showing main stem and major tributaries. The Willamette River drains a region of 11,478 square miles (29,730 km 2), which is 12 percent of the total area of Oregon. [4] Bounded by the Coast Range to the west and the Cascade Range to the east, the river basin is about 180 miles (290 km) long and 100 miles (160 km) wide. [13]
At Willamette Falls, the river plunges about 40 feet (12 m). For the rest of its course, the river is extremely low-gradient and is influenced by Pacific Ocean tidal effects from the Columbia. The main stem of the Willamette varies in width from about 330 to 660 feet (100 to 200 m).
Shivanasamudra Falls: 934: 98 305 Kaveri India: This waterfall divides around Sivasamudram Island. One side is known as Gaganachukki and the other side is known as Barachukki. [17] Willamette Falls: 928: 13 457 Willamette United States
The bridge was added to the National Register of Historic Places (as the Willamette River (Oregon City) Bridge (No. 357)) on July 1, 2005. [ 1 ] [ 7 ] In March 2009, ODOT imposed new weight limits for vehicles crossing the bridge, after inspections revealed damage to some of the structure's floor beams.
The Tamolitch Falls, now a seasonal waterfall, once had a constant flow on the McKenzie River in Lane County, Oregon. The site is located in the Willamette National Forest . In the 1960s, water was diverted for hydroelectric use from the stream above the falls; that section of the stream, as well as the falls, ceased to flow except during ...
Some temporary lakes rose to an elevation of more than 400 ft (120 m), flooding the Willamette Valley to Eugene, Oregon and beyond. Iceberg-rafted glacial erratics and erosion features are evidence of these events. Lake-bottom sediments deposited by the floods have contributed to the agricultural richness of the Willamette and Columbia Valleys.
The steamboat Shoalwater was the sixth steamer to operate on the upper Willamette River, which refers to the part of the river above Willamette Falls at Oregon City.In a short career of six years, Shoalwater was renamed Fenix, Franklin, and Minnie Holmes. [2]