Truckee River

Naming of the river

A Northern Paiute word for the Truckee is Kuyuinahukwa. Kuyui- refers to the Cui-ui, a species of fish endemic to Pyramid Lake which is central to the lives of the Northern Paiute band called the Kuyui Dükadü (cui-ui-fish-eaters).

In the Washo language, different parts of the river have different names. Two names, ‘Át’abi wá’t’a and Á’waku wá’t’a translate to "trout stream." The latter name refers to the river at and around Pyramid Lake. At the outlet at Lake Tahoe, there are multiple names as well. Dawbayódok is said to refer to the area when one is situated "on the down side" of the outlet, while Dawbayóduwé is used when one is "on the up side." Debeyúmewe, translated as "coming out," is less specific.

When John C. Frémont and Kit Carson ascended the Truckee River on January 16, 1844, they called it the Salmon Trout River, after the huge Lahontan cutthroat trout (Oncorhynchus clarki henshawi) that ran up the river from Pyramid Lake to spawn. However, the river was ultimately named after a Paiute chief known as Truckee, who in 1844 guided an emigrant party from the headwaters of the Humboldt River to California via the Truckee River, Donner Lake, and Donner Pass. Appreciative of their Native American guide's services, the party named the river after him. The chief's real name might not have been Truckee, but perhaps Tru-ki-zo, which could have become distorted as "Truckee". There are numerous other theories about Chief Truckee and his name.

Course and watershed

The Truckee River's source is the outlet of Lake Tahoe, at the dam on the northwest side of the lake near Tahoe City, California. It flows generally northeast through the mountains to Truckee, California, then turns sharply to the east and flows into Nevada, through Reno and Sparks and along the northern end of the Carson Range. At Fernley it turns north, flowing along the east side of the Pah Rah Range. It empties into the southern end of Pyramid Lake, a remnant of prehistoric Lake Lahontan, in northern Washoe County in the Pyramid Lake Indian Reservation.

The Truckee River's endorheic drainage basin is about 3060 sqmi, of which about 2300 sqmi are in Nevada. The Middle Watershed is regarded as the 15 mi of river and its tributaries from Tahoe City in Placer County, through the Town of Truckee in Nevada County, to the state line between Sierra and Washoe counties. The major tributaries to the Truckee River in California from the Lake Tahoe outlet and heading downstream include: Bear Creek, Washeshu Creek, Cabin Creek, Pole Creek, Donner Creek, Trout Creek, Martis Creek, Prosser Creek, the Little Truckee River, Gray Creek, and Bronco Creek. Major lakes and reservoirs in the California part of the watershed include Lake Tahoe, Donner Lake, Independence Lake (California), Webber Lake, Boca Reservoir, Stampede Reservoir, Prosser Creek Reservoir, and Martis Creek Reservoir. In the Lower Watershed, Steamboat Creek, which drains Washoe Lake, is the major tributary to the Truckee River. The Steamboat Ditch, a 34 mi irrigation canal constructed in 1880, diverts water from the Truckee near the California-Nevada border and terminates at Steamboat Creek in south Reno.

River modifications

Like many other rivers in the western United States, the Truckee's flow is highly regulated, with most river flow fully allocated through a system of water rights, set in 2015 by the Truckee River Operating Agreement. This system over-allocates available water during low flow periods. Disputes occur among those asserting rights to the water. In the early 20th century, the Newlands Reclamation Act instituted a diversion that removed river flows from the Truckee River watershed and transferred them to the Carson River watershed. Currently the Truckee–Carson Irrigation District supervises the diversion of approximately one-third of the river flow at the Derby Dam to the Lahontan Valley to irrigate alfalfa and pastures. Truckee River water is also supplied to the resort communities surrounding Lake Tahoe, the greater metropolitan area of Reno and Sparks, and the Pyramid Lake Paiute Indian Reservation. The U.S. Fish and Wildlife Service uses some of the water to induce spawning of the endangered fish cui-ui and to provide drought relief.

Ecology

Beavers were re-introduced to the Truckee River watershed and Tahoe Basin by the California Department of Fish and Game (CDFG) and the U. S. Forest Service between 1934 and 1949 in order to prevent stream degradation and to promote wetland restoration. That beaver were once native to the area is supported by the fact that the Washo have a word for beaver, c'imhélhel{{Cite web | access-date = 2012-07-07

Recreation

The river is heavily used for recreation, including whitewater rafting and fly fishing. A common rafting run is the River Ranch Run. Starting from the outlet gates at Lake Tahoe stretching about 3 mi, the run ends at the River Ranch Restaurant. These rapids are almost all class 1 and class 2. In downtown Reno the river has been sculpted into a half-mile Class 2/3 whitewater park, and is used mainly for kayaking.

The Truckee River is western Nevada's largest river. It supports a large sport fishing population each year. Kim Tisdale of the Nevada Department of Wildlife (NDOW), is the state's Western Regions Fishery Supervisor; she commented that NDOW's goal is for a catch rate of one to two fish per hour in the Truckee. To accomplish this, NDOW stocks a total of 105,000 trout per year. 70,000 of those are native Lahontan cutthroat trout (Oncorhynchus clarki henshawi) and the rest are non-native Rainbow trout (Oncorhynchus mykiss). The Truckee also boasts a healthy, self-sustaining non-native Brown trout (Salmo trutta) population.

Hydrology and water quality

Because of the endangered species present and because the Lake Tahoe Basin comprises the headwaters of the Truckee River, the river has been the focus of several water quality investigations, the most detailed starting in the mid-1980s. Under the direction of the U.S. Environmental Protection Agency, a comprehensive dynamic hydrology transport model was developed by Earth Metrics Inc. The model's name was subsequently changed to DSSAM, and it was applied to analyze land use, and wastewater management decisions throughout the Truckee River Basin of 3120 sqmi and to provide guidance in other U.S. river basins. Analytes addressed included nitrogen, reactive phosphate, dissolved oxygen, total dissolved solids and nine other parameters. Based on the use of the model, some decisions have been influenced to enhance riverine quality and aid the viability of associated biota. Impacts upon the receiving waters of Pyramid Lake were also analyzed. It is thought that dumping raw sewage into the Truckee River is a detriment to the water quality in several communities.

References

References

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