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San Francisco Fire Department Auxiliary Water Supply System
The Auxiliary Water Supply System (AWSS, though often referred to on manhole covers and hydrants as HPFS for High Pressure Fire System) is a high pressure water supply network built for the city of San Francisco in response to the failure of the existing emergency water system during the 1906 earthquake. It was originally proposed by San Francisco Fire Department chief engineer Dennis T. Sullivan in 1903, with construction beginning in 1909 and finishing in 1913. The system is made up of a collection of water reservoirs, pump stations, cisterns, suction connections and fireboats. While the system can use both fresh or salt water, it is preferential to not use salt water, as it commonly causes galvanic corrosion in fire equipment. The large, white oversized hydrants that are supplied by the AWSS/HPFS, of which there are 1889, are visible throughout the city. The hydrants have painted tops that are color-coded as to zone: * Black topped hydrants are in the West of Twin Peaks zone, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manhole Cover
A manhole cover or maintenance hole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material. Manhole covers date back at least to the era of ancient Rome, which had sewer grates made from stone. Description Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than . The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorized people without suitable tools to remove them. Manhole covers may also be made from glass-reinforced plastic or other composite material (especially in Europe, or where cover theft is of concern). Because of law restricting acceptable manual handling weights, Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nob Hill, San Francisco
Nob Hill is a neighborhood of San Francisco, California, United States that is known for its numerous luxury hotels and historic mansions. Nob Hill has historically served as a center of San Francisco's upper class. Nob Hill is among the highest-income neighborhoods in the United States, as well as one of the most desirable and expensive real estate markets in the country. Nob Hill is a luxury destination in San Francisco, owing to its numerous Michelin-starred restaurants, boutiques, cultural institutions, art galleries, and historic landmarks. The neighborhood is named after one of San Francisco's original "Seven Hills". Location The actual peak of Nob Hill lies approximately at the intersection of Jones and Sacramento Streets. North of Nob Hill is Russian Hill. West of the district is Pacific Heights. To the south of Nob Hill is the Union Square shopping district, Civic Center district, and the Tendernob neighborhood. East of Nob Hill is Chinatown and the Financial D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Supply Infrastructure In California
Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent). It is vital for all known forms of life, despite not providing food, energy or organic micronutrients. Its chemical formula, H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. "Water" is also the name of the liquid state of H2O at standard temperature and pressure. A number of natural states of water exist. It forms precipitation in the form of rain and aerosols in the form of fog. Clouds consist of suspended droplets of water and ice, its solid state. When finely divided, crystalline ice may precipitate in the form of snow. The gaseous state of water is steam or water vapor. Water co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of San Francisco
The government of the City and County of San Francisco utilizes the "strong mayor" form of mayoral/council government, composed of the Mayor, Board of Supervisors, several elected officers, and numerous other entities. It is the only consolidated city-county in California, and one of only thirteen charter counties of California. The fiscal year 2019–20 city and county budget was approximately $12.3 billion. Organization San Francisco utilizes the "strong mayor" form of mayoral/council government, composed of the mayor, Board of Supervisors, several elected officers, and numerous other entities. San Francisco voters use ranked-choice voting to elect the mayor, supervisors, and other elective officers. Mayor The Mayor of San Francisco is the head of the executive branch of the city and county government. The mayor has the responsibility to enforce all city laws, administer and coordinate city departments and intergovernmental activities, set forth policies and agendas t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In San Francisco
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cisterns
A cistern (Middle English ', from Latin ', from ', "box", from Greek ', "basket") is a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater. Cisterns are distinguished from wells by their waterproof linings. Modern cisterns range in capacity from a few litres to thousands of cubic metres, effectively forming covered reservoirs. Origins Early domestic and agricultural use Waterproof lime plaster cisterns in the floors of houses are features of Neolithic village sites of the Levant at, for instance, Ramad and Lebwe, and by the late fourth millennium BC, as at Jawa in northeastern Lebanon, cisterns are essential elements of emerging water management techniques in dry-land farming communities. The Ancient Roman impluvium, a standard feature of the domus house, generally had a cistern underneath. The impluvium and associated structures collected, filtered, cooled, and stored the water, and also cooled and ventilated t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Cistern In San Francisco
Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent). It is vital for all known forms of life, despite not providing food, energy or organic micronutrients. Its chemical formula, H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. "Water" is also the name of the liquid state of H2O at standard temperature and pressure. A number of natural states of water exist. It forms precipitation in the form of rain and aerosols in the form of fog. Clouds consist of suspended droplets of water and ice, its solid state. When finely divided, crystalline ice may precipitate in the form of snow. The gaseous state of water is steam or water vapor. Water covers ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guardian (fireboat)
''Guardian'' is a fireboat owned by San Francisco Fire Department from 1900 until December, 2022. She operated in the San Francisco Bay since 1990 in reserve status. ''Guardian'' was a gift to the people of San Francisco by anonymous donors following the notable role of the fireboat ''Phoenix'' in helping to save the Marina District buildings from further destruction by fire following the 1989 Loma Prieta earthquake. Both ''Guardian'' Fireboat No. 2 and ''Phoenix'' Fireboat No. 3 have been based at Firehouse No. 35 at Pier 22½ of the Port of San Francisco. Guardian was officially retired by the City of San Francisco in 2022 and was purchased at auction by a small group of individuals who are passionate about keeping this vessel alive and well in San Francisco Bay. She is anticipated to be ready for charters and events beginning in Spring 2023. ''Guardian'' has 5 pumps which can deliver up to 26,000 gallons of water per minute, significantly more than ''Phoenix'' making it one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoenix (fireboat)
''Phoenix'' is a fireboat owned by State of California and operated by the city of San Francisco in the San Francisco Bay since 1955. ''Phoenix'' is known for helping to save Marina District buildings from further destruction by fire following the 1989 Loma Prieta earthquake. Her worthy assistance resulted in a second vintage fireboat obtained for the city. Both ''Guardian'' and ''Phoenix'' are based at Firehouse No. 35 at Pier 22½ of the Port of San Francisco. ''Phoenix'' often leads parades of ships, and takes part in welcoming ceremonies. History The city of San Francisco operated two fireboats in the 1900s: ''Governor Irwin'' and ''Governor Markham''. Both were capable of pumping about per minute. These two, assisted by tugboats and military fireboats, tried but failed to stop the horrific fires which swept the city after the 1906 San Francisco earthquake. In 1909, two new fireboats were placed in service—''David Scannell'' and ''Dennis T. Sullivan''—steam-powered bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic value". A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred in preserving the property. The passage of the National Historic Preservation Act (NHPA) in 1966 established the National Register and the process for adding properties to it. Of the more than one and a half million properties on the National Register, 95,000 are listed individually. The remainder are contributing resources within historic districts. For most of its history, the National Register has been administered by the National Park Service (NPS), an agency within the U.S. Department of the Interior. Its goals are to help property owners and inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumping Station No
Pumping may refer to: * The operation of a pump, for moving a liquid from one location to another **The use of a breast pump for extraction of milk * Pumping (audio), a creative misuse of dynamic range compression * Pumping (computer systems), the number of times data is transmitted per clock cycle * Pumping (oil well), injecting chemicals into a wellbore * Pumping (noise reduction), an unwanted artifact of some noise reduction systems * Pumping lemma, in the theory of formal languages * Gastric lavage, cleaning the contents of the stomach * Optical pumping, in which light is used to raise electrons from a lower energy level to a higher one * Pump (skateboarding) {{single source, date=February 2019 Pumping is a skateboarding technique used to accelerate without the rider's feet leaving the board. Pumping can be done by turning or on a transition, like a ramp or quarter pipe.https://skateboarding.transworl ..., accelerating without pushing off of the ground * "Pumping" (My Heart) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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