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2. Structural Soil - Wikipedia

   en.wikipedia.org/wiki/Structural_Soil

   Structural Soil is a medium that can be compacted to pavement design and installation requirements while permitting root growth. It is a mixture of gap-graded gravels (mostly made of crushed stone) and soil (mineral content and organic content). It provides an integrated, root penetrable, high strength pavement system that shifts design away ...

3. Roll-off (dumpster) - Wikipedia

   en.wikipedia.org/wiki/Roll-off_(dumpster)

   Roll-off container sizes are determined by the amount of debris they can hold, measured in cubic yards. [2] Container sizes commonly found in the United States include 10, 15, 20, 30, and 40 cubic yards, equivalent to approximately 7.65 m³, 11.47 m³, 15.29 m³, 22.94 m³, and 30.58 m³.

4. Topsoil - Wikipedia

   en.wikipedia.org/wiki/Topsoil

   Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.

5. Barkdust - Wikipedia

   en.wikipedia.org/wiki/Barkdust

   Smaller quantities of barkdust, typically 2 to 3 cubic feet (0.057 to 0.085 m 3) are sold prepackaged in home improvement and gardening retailers. [citation needed] For landscaping applications, a layer of 2 to 3 inches (5.1 to 7.6 cm) is generally recommended. For use in playgrounds, a 12-inch (30 cm) layer is often recommended. [citation needed]

6. Environmental impact of concrete - Wikipedia

   en.wikipedia.org/wiki/Environmental_impact_of...

   The environmental impact of concrete, its manufacture, and its applications, are complex, driven in part by direct impacts of construction and infrastructure, as well as by CO 2 emissions; between 4-8% of total global CO 2 emissions come from concrete. [1] Many depend on circumstances.

7. Friant-Kern Canal - Wikipedia

   en.wikipedia.org/wiki/Friant-Kern_Canal

   The Friant-Kern Canal is a 152 mi (245 km) aqueduct managed by the United States Bureau of Reclamation in Central California to convey water to augment irrigation capacity in Fresno, Tulare, and Kern counties. A part of the Central Valley Project, canal construction began in 1949 and was completed in 1951 at a cost of $60.8 million.