concrete lined shaft
1Shaft mining — Abandoned mine shafts in Marl, Germany. A …
2Zero Gravity Research Facility (B-2) — Infobox nrhp | name =Zero Gravity Research Facility (B 2) nrhp type = nhl caption = location= Cleveland, Ohio lat degrees = 41 lat minutes = 24 lat seconds = 44 lat direction = N long degrees = 81 long minutes = 51 long seconds = 51 long… …
3Glenn Research Center — NASA John H. Glenn Research Center at Lewis Field …
4tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
5MetroWest Water Supply Tunnel — Official name MWWST Begins Marlborough Ends Weston Maintained by MWRA …
6New York City Water Tunnel No. 3 — is the largest capital construction project in New York state s history and among the most complex engineering projects in the world today. It is being constructed by the New York City Department of Environmental Protection (DEP), and is intended …
7Spangler, Pennsylvania — was a former borough located in Cambria County, Pennsylvania, USA, and named for a Colonel Spangler. The area was first settled by Europeans in the early to middle 1800s. The presence of the West Branch of the Susquehanna River allowed loggers to …
8environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
9Western architecture — Introduction history of Western architecture from prehistoric Mediterranean cultures to the present. The history of Western architecture is marked by a series of new solutions to structural problems. During the period from the… …
10steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
