earth roadbed

См. также в других словарях:

• roadbed — noun Date: circa 1840 1. a. the bed on which the ties, rails, and ballast of a railroad rest b. the ballast or the upper surface of the ballast on which the ties rest 2. a. the earth foundation of a road prepared for surfacing b. the part of the… …   New Collegiate Dictionary

• macadamize — [mə kad′ə mīz΄] vt. macadamized, macadamizing 1. to make (a road) by rolling successive layers of macadam on a dry earth roadbed 2. to repair or cover (a road) with macadam …   English World dictionary

• 1989 Loma Prieta earthquake — earthquake title= Loma Prieta earthquake date=October 17, 1989 magnitude=6.9 Mw depth=convert|18|km|mi|0 epicenter location=coord|37.04| 121.88) countries affected=United States (San Francisco Bay Area) location=Forest of Nisene Marks State Park …   Wikipedia

• railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …   Universalium

• Fairfield, Iowa —   City   Main Street …   Wikipedia

• St. Francis Dam — The St. Francis Dam was a concrete gravity arch dam, designed to create a reservoir as part of the Los Angeles Aqueduct. The dam was located 40 miles (64 km) northwest of Los Angeles, California, near the present city of Santa Clarita. The dam… …   Wikipedia

• Ontario Highway 7A — Highway 7A Route information Auxiliary route of Highway 7 Maintained by The Ministry of Transportation of Ontario …   Wikipedia

• Hayward Fault Zone — The Hayward Fault Zone is a geologic fault zone capable of generating significantly destructive earthquakes. About 60 kilometers long, it lies mainly along the western base of the hills on the east side of San Francisco Bay. It runs through… …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• permafrost — /perr meuh frawst , frost /, n. (in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. [1943; PERMA(NENT) + FROST] * * * Perennially frozen earth, with a temperature below 32 °F (0 °C) continuously for two years or… …   Universalium

• Eastern span replacement of the San Francisco — San Francisco – Oakland Bay Bridge (eastern span replacement) Artistic rendition of the new eastern span of the Bay Bridge seen from Treasure Island (ca. 2014) Official name To be determ …   Wikipedia