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  2. Trench drain - Wikipedia

    en.wikipedia.org/wiki/Trench_drain

    A linear drain A Channel Drain. There are four common types of trench drains which are based on forming or installation method. These are cast-in-place, pre-cast concrete, liner systems and former systems. Newer stainless steel drains are available for residential and commercial shower installs and more commonly called "channel drains".

  3. French drain - Wikipedia

    en.wikipedia.org/wiki/French_drain

    A diagram of a traditional French drain. A French drain [1] (also known by other names including trench drain, blind drain, [1] rubble drain, [1] and rock drain [1]) is a trench filled with gravel or rock, or both, with or without a perforated pipe that redirects surface water and groundwater away from an area.

  4. Slot drain - Wikipedia

    en.wikipedia.org/wiki/Slot_drain

    In recent years, this drainage concept is more often used in both indoor and outdoor applications, such as fire stations, car washes, landscaping, shower rooms and garages, as well as highly-sanitized environments like food processing plants and breweries. [1] A slot drain is a modified trench drain. "Slot" describes its appearance on the ground.

  5. National Defense Strategy (United States) - Wikipedia

    en.wikipedia.org/wiki/National_Defense_Strategy...

    The NDS informs another related document, the National Military Strategy (NMS), [a] [b] written by the Joint Chiefs of Staff and signed by its Chairman (CJCS). [7] The NMS and NDS often agree, but since the CJCS's role is to give unfiltered military advice to the government, the NMS is also an opportunity for the CJCS to provide a contrary ...

  6. Percolation trench - Wikipedia

    en.wikipedia.org/wiki/Percolation_trench

    A percolation trench is similar to a dry well, which is typically an excavated hole filled with gravel. [3] Another similar drainage structure is a French drain, which directs water away from a building foundation, but is usually not designed to protect water quality.

  7. Plumbing & Drainage Institute - Wikipedia

    en.wikipedia.org/wiki/Plumbing_&_Drainage_Institute

    The Plumbing & Drainage Institute (PDI) is an association of American manufacturers of engineered plumbing drainage specialty products.Such products include floor drains, roof drains, sanitary floor drains, cleanouts, water hammer arresters, swimming pool drains, backwater valves, grease interceptors, fixture supports, and other drainage specialties. [1]

  8. Interceptor ditch - Wikipedia

    en.wikipedia.org/wiki/Interceptor_ditch

    In geotechnical engineering, an interceptor ditch is a small ditch or channel constructed to intercept and drain water to an area where it can be safely discharged. [1] These are used for excavation purposes of limited depth made in a coarse-grained soils. These are constructed around an area to be dewatered.

  9. Davenport Locomotive Works - Wikipedia

    en.wikipedia.org/wiki/Davenport_Locomotive_Works

    Davenport built a number of locomotives for the United States Army including World War I trench railways, the USATC S100 Class 0-6-0 of World War II, and eighteen larger switcher locomotives during the 1950s, two of which were adjustable in gauge: One could operate on broad gauges up to 5 ft 6 in (1,676 mm), and one on narrow gauges—the ...

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