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Temescal Creek (Northern California)

Berkeley HillsEmeryville, CaliforniaGeography of Oakland, CaliforniaRivers of Alameda County, CaliforniaRivers of Northern California
Subterranean rivers of the United StatesTributaries of San Francisco Bay
Temescal 39
Temescal 39

Temescal Creek (Temescal, Spanish for "sweat lodge") is one of the principal watercourses in the city of Oakland, California, United States. The word "temescal" is a Spanish term derived from temescalli, which means "sweat house" in the Nahuatl language of Mexico. The name was given to the creek when it became part of the Peralta's Rancho San Antonio. It is surmised that the Peraltas or perhaps one of their ranch hands (vaqueros) had seen local indigenous (Ohlone) structures along the creek similar to those in other parts of New Spain which were called temescalli. Three forks begin in the Berkeley Hills in the northeastern section of Oakland (also referred to as the Oakland hills south of the Caldecott Tunnel), part of the Pacific Coast Ranges, coming together in the Temescal district of Oakland, then flowing westerly across Oakland and Emeryville to San Francisco Bay. The north fork of Temescal Creek was renamed "Harwood's Creek" in the mid 19th century after an early claimant to grazing lands in the canyon above the Claremont neighborhood, retired sea captain and Oakland wharfinger William Harwood. It was renamed yet again "Claremont Creek" in the early 20th century after a residential development in the same vicinity, today's Claremont district. The middle fork flows through Temescal Canyon mostly in underground culverts, beneath the Grove Shafter Freeway starting near the Caldecott Tunnel and underneath the interchange with State Route 13. It joins the south fork at Lake Temescal. Before the Caldecott tunnel project (1934–37), this fork entered the lake via a prominent inlet that was traversed by a trestle bridge of the Sacramento Northern Railroad. The inlet was filled in and the trestle replaced by a large concrete embankment which exists to this day. The south fork begins in the northern section of Oakland's Montclair district, flowing southwest out of a canyon in the hills alongside Thornhill Road, then turning abruptly northwestward in the linear valley formed by the Hayward Fault. It then flows into Lake Temescal, a natural sag pond which was dammed in the 19th century to increase its capacity for use as a reservoir. Lake Temescal is now a public park. The creek continues out of the northernmost corner of Lake Temescal into another underground culvert. The tunnel follows the Grove Shafter Freeway and briefly re-emerges next to Saint Albert's Priory next to Presley Way and Miles Avenue. It continues westerly around the end of the shutter ridge in the Rockridge district of Oakland, where it joins the north fork (Claremont Creek) at approximately the intersection of Forrest Street and Miles Avenue. A small section of above-ground creek exists as the Rockridge-Temescal Greenbelt parallel to Claremont Avenue between the Grove Shafter Freeway and Telegraph Avenue. A pumping station at the top of the greenbelt diverts water from the tunnel and pumps it up to the surface creek. After Telegraph Avenue the tunnel continues east underneath the Temescal Community Garden and Temescal Creek Parks, then follows 53rd Street through Emeryville to its mouth at Bay Street.

Excerpt from the Wikipedia article Temescal Creek (Northern California) (License: CC BY-SA 3.0, Authors, Images).

Temescal Creek (Northern California)
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N 37.833888888889 ° E -122.295 °
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Eastshore Freeway

Eastshore Freeway
94608
California, United States
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Temescal 39
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Joint BioEnergy Institute

The Joint BioEnergy Institute (JBEI) is a research institute funded by the United States Department of Energy. JBEI is led by the Lawrence Berkeley National Laboratory, and includes participation from the Sandia National Laboratory, Lawrence Livermore National Laboratory, as well as UC Berkeley, UC Davis, Iowa State University, and the Carnegie Institute. JBEI is located in Emeryville, California. The goal of The Joint BioEnergy Institute is to develop biofuels, bio-synthesized from lignin derived from corn stover, sorghum and other plant feedstocks (see second generation biofuels) as an alternative to fossil fuels. Additionally, there are efforts to produce bio-based chemicals derived from the deconstruction of lignocellulosic biomass to create bio-based polymers and other commodities such as perfumes, dietary supplements as well as other high-end products. The goal is to use these bio-based chemicals to help finance the change in infrastructure from petroleum fuels to biofuels. JBEI functions as an incubator for scientific discovery bringing together the best and brightest researchers from around the country and the globe. Inside JBEI's Emeryville laboratories, five interlocking scientific divisions–Life-cycle, Economics and Agronomy; Feedstocks; Deconstruction; Biofuels and Bioproducts; and Technology–bring the sunlight-to-biofuels/bioproducts pipeline under one roof. JBEI represents a departure from traditional research institutions that specialize in a single field. Here, an inter-disciplinary team of some 160-plus scientists, post doctoral researchers and graduate students combine their expertise and collaborate to develop genetic, biological, computational and robotic technologies to accelerate the process of discovery. JBEI researchers are developing scientific breakthroughs to produce clean, sustainable, carbon-neutral biofuels and bioproducts. An inter-disciplinary team of scientists is using the latest techniques in molecular biology, chemical and genetic engineering to develop new biological systems, processes and technologies to convert biomass to biofuels and bioproducts. In the lab, JBEI researchers are engineering microbes to transform sugars into energy-rich fuels that can directly replace petroleum-derived gasoline, diesel and jet fuel. Advanced biofuels can also be dropped into today's engines and infrastructures with no loss of performance. Harnessing the solar energy in biomass from grasses and other non-edible plants could meet much of the nation's annual transportation energy needs without contributing to global climate change.