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Steel corrugated culvert with a drop on the exhaust end, northern Vermont. Culverts can be constructed of a variety of materials including cast-in-place or precast concrete (reinforced or non-reinforced), galvanized steel, aluminum, or plastic (typically high-density polyethylene). Two or more materials may be combined to form composite ...
Arched roof, bow roof, [11] Gothic, Gothic arch, and ship's bottom roof. Historically also called a compass roof. [12] [13] Circular Bell roof (bell-shaped, ogee, Philibert de l'Orme roof): A bell-shaped roof. Compare with bell-cast eaves. Domed; Onion dome or rather an imperial roof; Bochka roof; Conical roof or cone roof; Hyperbolic Saddle
The surface water had overwhelmed two 24-inch culverts and undermined the roadbed. The engine and tender made it across the damaged track, with the rear tender truck being derailed. The rear truck floating lever was damaged, rendering the tender brakes inoperative. The entire 5-car consist had become uncoupled from the tender and derailed. [8]
The ductile iron used to manufacture the pipe is characterized by the spheroidal or nodular nature of the graphite within the iron. [2] Typically, the pipe is manufactured using centrifugal casting in metal or resin lined moulds. [3]
A box gutter, internal gutter, parallel gutter, or trough gutter is a rain gutter on a roof usually rectangular in shape; it may be lined with EPDM rubber, metal, asphalt, or roofing felt, and may be concealed behind a parapet or the eaves, or in a roof valley. [1] [2] Box gutters are essentially placed between parallel surfaces, as in a valley ...
The overall thickness of sandwich wall panels in commercial applications is typically 8 inches, but their designs are often customized to the application. In a typical 8-inch wall panel the concrete wythes are each 2-3/8 inches thick), sandwiching 3-1/4 inches of high R-value insulating foam. The interior and exterior wythes of concrete are ...
A finial (from Latin: finis, end) [1] or hip-knob is an element marking the top or end of some object, often formed to be a decorative feature. [ 2 ] In architecture, it is a small decorative device, employed to emphasize the apex of a dome , spire , tower , roof, or gable or any of various distinctive ornaments at the top, end, or corner of a ...
Trash racks are designed for water velocity of around 2 feet/second (0.6 metres/second) to prevent excessive energy loss due to the head loss across the trash rack. [2] Close spacing keeps out more small floating debris or fish, but may plug up easily with frazil ice in cold climates. [3]