Vaulted sidewalks, also called sidewalk vaults and areaways are sidewalks that are not placed directly on the ground. Rather, there is an empty space below them where the ground level used to be. This may happen where the street level has been raised over time, or where basements are extended, or as utility vaults.
Sidewalk vaults may be protected as historical architecture, or filling them required for planning permission. [1]
The raising of Chicago started in 1855 [2] as a response to the muddy conditions of the streets [3] and because of epidemics of cholera. [4] The raised streets needed new, raised sidewalks to match them. In the case of vaulted sidewalks, which might be 5 feet (1.5 m) or more over the original street level, a structure was built to hold a new sidewalk at the new street level, and an empty space was left between the original and the new sidewalks. This process gave building owners a choice: raise their buildings to the new street level, or relocate the main entrance to the second floor of the building to match the new street level. [5] Many buildings chose the latter option, opting to use the vaulted area for storage. As recently as 2001 there were still over 2,000 vaulted sidewalks in Chicago [6]
Today the old vaulted sidewalks are visible mostly during construction and cause increased costs of infrastructure maintenance. [7]
As of 2022 [update] , several sidewalk vaults, or "hollow walks," remain in Milwaukee's Historic Third Ward and increase the cost of street and sidewalk reconstruction. [8]
In New York, basements may extend beneath the sidewalk and drivers are warned "HOLLOW SIDEWALK, DO NOT PARK". [9]
Some Seattle Underground sidewalks have vault lights, inset glass that trasmits sunlight to the lower level. [10]
Prism lighting allows sidewalk vaults to provide daylight to the basement.
A brick is a type of construction material used to build walls, pavements and other elements in masonry construction. Properly, the term brick denotes a unit primarily composed of clay, but is now also used informally to denote units made of other materials or other chemically cured construction blocks. Bricks can be joined using mortar, adhesives or by interlocking. Bricks are usually produced at brickworks in numerous classes, types, materials, and sizes which vary with region, and are produced in bulk quantities.
Daylighting is the practice of placing windows, skylights, other openings, and reflective surfaces so that direct or indirect sunlight can provide effective internal lighting. Particular attention is given to daylighting while designing a building when the aim is to maximize visual comfort or to reduce energy use. Energy savings can be achieved from the reduced use of artificial (electric) lighting or from passive solar heating. Artificial lighting energy use can be reduced by simply installing fewer electric lights where daylight is present or by automatically dimming or switching off electric lights in response to the presence of daylight – a process known as daylight harvesting.
A bungalow is a small house or cottage that is single-storey, and may be surrounded by wide verandas.
A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve along a given distance. The curves are typically circular in shape, lending a semi-cylindrical appearance to the total design. The barrel vault is the simplest form of a vault: effectively a series of arches placed side by side. It is a form of barrel roof.
Glass brick, also known as glass block, is an architectural element made from glass. The appearance of glass blocks can vary in color, size, texture and form. Glass bricks provide visual obscuration while admitting light. The modern glass block was developed from pre-existing prism lighting principles in the early 1900s to provide natural light in manufacturing plants. Today glass blocks are used in walls, skylights, and sidewalk lights.
The Seattle Underground is a network of underground passageways and basements in the Pioneer Square neighborhood of Seattle, Washington, United States. They were located at ground level when the city was built in the mid-19th century but fell into disuse after the streets were elevated. In recent decades, they have become a tourist attraction, with guided tours taking place around the area.
Glass floors are made with transparent glass when it is useful to view something from above or below; whereas translucent glass is used when there is no need to view through. In either case, toughened glass is usually chosen, for its durability and resistance to breakage.
Light tubes are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides.
The Theodore Levin United States Courthouse is a large high-rise courthouse and office building located at 231 West Lafayette Boulevard in downtown Detroit, Michigan. The structure occupies an entire block, girdled by Shelby Street (east), Washington Boulevard (west), West Fort Street (south), and West Lafayette Boulevard (north). The building is named after the late Theodore Levin, a lawyer and United States District Court judge.
The Equitable Life Assurance Building, also known as the Equitable Life Building, was the headquarters of the Equitable Life Assurance Society of the United States, at 120 Broadway in Manhattan, New York. Arthur Gilman and Edward H. Kendall designed the building, with George B. Post as a consulting engineer. The Equitable Life Building was made of brick, granite, and iron, and was originally built with seven above-ground stories and two basement levels, with a height of at least 130 feet (40 m). An expansion in 1885 brought the total height to 155 feet (47 m) and nine stories.
During the 1850s and 1860s, engineers carried out a piecemeal raising of the grade of central Chicago to lift the city out of its low-lying swampy ground. Buildings and sidewalks were physically raised on jackscrews. The work was funded by private property owners and public funds.
A deck prism, or bullseye, is a prism inserted into the deck of a ship to provide light down below.
Mercantile Trust and Deposit Company is a historic bank building in Baltimore, designed by the Baltimore architectural firm of Wyatt and Sperry and constructed in 1885. It has a brick-with-stone-ornamentation Romanesque Revival structure, with deeply set windows, round-arch window openings, squat columns with foliated capitals, steeply pitched broad plane roofs, and straight-topped window groups. The interior features a large banking room with a balcony, Corinthian columns and ornate wall plaster work.
Anidolic lighting systems use anidolic optical components to light rooms. Light redirected by these systems does not converge to a focal point or form an image, hence the name.
The James A. Redden Federal Courthouse, formerly the United States Post Office and Courthouse, is a federal courthouse located in Medford, Jackson County, Oregon, United States. Completed in 1916 under the supervision of architect Oscar Wenderoth, it houses the United States District Court for the District of Oregon. A substantial extension was completed in 1940, under the supervision of architect, Louis A. Simon. In September 1996, the United States Senate enacted a bill introduced by Oregon Senator Mark Hatfield to rename the building for long-serving District Court judge James A. Redden.
The U.S. Bank Building, previously the Old National Bank Building, is a high-rise in Spokane, Washington, United States. Having been completed in 1910, it was the first skyscraper in the Inland Northwest. At 219 ft (67 m) tall, the building was the tallest in the state of Washington from 1910 to 1911, when it was surpassed by the Key Bank Center in Tacoma—which itself was far surpassed by Seattle's Smith Tower in 1914. It remained the tallest building in Spokane, until the 1929 completion of the Paulsen Medical and Dental Building, located across the street.
Pavement lights (UK), vault lights (US), floor lights, or sidewalk prisms are flat-topped walk-on skylights, usually set into pavement (sidewalks) or floors to let sunlight into the space below. They often use anidolic lighting prisms to throw the light sideways under the building. They were developed in the 19th century, but declined in popularity with the advent of cheap electric lighting in the early 20th. Older cities and smaller centers around the world have, or once had, pavement lights. In the early 21st century, such lights are approximately a century old, although lights are being installed in some new construction.
Prism lighting is the use of prisms to improve the distribution of light in a space. It is usually used to distribute daylight, and is a form of anidolic lighting.
Newcastle Post Office is a heritage-listed former post office at 96 Hunter Street, Newcastle, New South Wales, Australia. It was designed by Walter Liberty Vernon in his capacity as New South Wales Government Architect and was built from 1900 to 1903 by R. Saunders (freestone), Loveridge & Hudson (trachyte), Mountney & Co., Chas Dobson & Co. and J. P. Woods. It was added to the New South Wales State Heritage Register on 22 December 2000.
354 George Street, Sydney is a heritage-listed retail and office building and former bank building located at 354 George Street, in the Sydney central business district, in the City of Sydney local government area of New South Wales, Australia. It was designed in various stages by Edward Raht, A. K. Henderson, Joseland & Gilling and Kevin Winterbottom and Assoc. and built in various stages from 1902 to 1937 by Loveridge & Hudson and Kell & Rigby. It is also known as ANZ Bank (former); ANZ Bank; United Permanent Building; 2 Martin Place; Paspaley Pearls; 354-360 George Street; and Bank of Australasia. The property is owned by Paspaley Pearls Properties P/L. It was added to the New South Wales State Heritage Register on 2 April 1999.