page_title: Tujunga Wash
section_title: About
hierarchical_section_title: Tujunga Wash / About
caption_attribution_description: English: Los Angeles River - flood of 1938 - confluence of Tujunga Wash and LA River Los Angeles River - View above confluence of Tujunga Wash (West Channel) with Los Angeles River, showing failure of Gunite levee on both banks. River mile 37.8. This image is from the Report on Engineering Aspects, Flood of March 1938 by the U. S. Engineer Office in Los Angeles and compiled in August 1938. The Los Angeles River and the river's tributaries flooded after a very wet rainy season and one particularly bad storm on March 1-3, 1938. The Report is a part of the Special Collections at CSU, Northridge and gives an extensive account of how different river channels reacted to the flood. After this flood, the Army Corps of Engineers set about insuring extensive flooding would not cause such extreme damage in the future. Image 28 in report. Black and white photograph. 3.5 x 4.5 in.
context_page_description: Tujunga Wash is a 13.0-mile-long stream in Los Angeles County, California. It is a tributary of the Los Angeles River, providing about a fifth of its flow, and drains about 225 square miles. It is called a wash because it is usually dry, especially the lower reaches, only carrying significant flows during and after storms, which usually only occur between November and April. The name of the wash derives from a Tongva village name.
context_section_description: The name Tujunga or Tuxunga means "old woman's place" in both Fernandeño and Tongva, where Tuxu means "old woman". The term is thought to relate to an ethnohistoric narrative, known as Khra'wiyawi, collected by Carobeth Laird from Juan and Juana Menendez at the Leonis Adobe in 1916. In the narrative, the wife of Khra'wiyawi (the chief of the region) is stricken with grief over the untimely loss of her daughter. In her sadness, she retreats to the mountains and turns to stone. It is thought this event became the basis for the village name.  In fact, there is a large rock in Little Tujunga Canyon which looks like an old woman in a sitting position. However, there was also a Fernandeño village in the vicinity of Big Tujunga Canyon called Muxúnga, which means "place of shooting" in the Fernandeño dialect of the Tongva language. The name comes from the verb muxú, which means "shoot him."
  Tujunga Wash consists of two forks, both beginning in the San Gabriel Mountains. The upper portion of Big Tujunga Wash is called Tujunga Creek, or Big Tujunga Creek. It travels roughly east to west, and several tributaries from the north and south join it as it flows to Big Tujunga Reservoir, formed by Big Tujunga Dam. Below the dam, the stream is called Big Tujunga Wash. It continues its westward flow, enters San Fernando Valley and is met by Little Tujunga Wash a mile before reaching Hansen Reservoir, which is formed by Hansen Dam. Little Tujunga Wash comes from the north, draining the portion of the San Gabriel Mountains immediately north of Hansen Reservoir. Downstream of the dam, Tujunga Wash flows roughly south and is met halfway to its confluence with the Los Angeles River by Pacoima Wash, which drains the other side of the mountains that Little Tujunga Wash drains. Finally, Tujunga Wash meets the Los Angeles River near Studio City, California.
  Big Tujunga Dam was built by Los Angeles County and completed in 1931. Big Tujunga Reservoir can hold 5,960 acre feet (7,350,000 m³) of water. In the Los Angeles Flood of 1938 it was tested. The dam is currently undergoing a seismic retrofit, which includes doubling the thickness of the gravity arch dam. Hansen Dam was built by the United States Army Corps of Engineers and completed in 1940. Hansen Reservoir can hold 74,100 acre feet (91,400,000 m³) of water. Their primary purposes are flood control, although they also provide some groundwater recharge. Water cannot percolate in the lower portion of the watershed because it is so urbanized that there is little bare ground and streambeds have been transformed into concrete channels, and the water flows too fast in the upper reaches of the watershed to sink into the ground very much. As a result, the majority of the water is discharged into the ocean.
  In 1969 there was a flood in the Tujunga Wash: water flowed down a formerly inactive channel and entered a large gravel pit 15 m to 23 m deep.  The channel bed degraded by about 4 meters, leading to failure of three highway bridges and loss of seven homes.
caption: Flooding damage along the wash in 1938
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