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The Longest Tunnel In the World Is Now Finished

Earlier this week, the new longest tunnel in the world was completed. The Gotthard Base Tunnel started in 2004, and travels underneath the Swiss Alps for 35.4 miles. The cost of the project was just under $10 billion U.S., and now it is finally done, thou

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About Centralia PA and the Mine Fire

Read about Centralia, Pennsylvania mine fire including the location of the town, its history, and the infamous coal fire that led to the town's demise.

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The day after ‘Azusa Now,’ God sent revival to humble coal

The day after ‘Azusa Now,’ God sent revival to humble coal-mining town...

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The World's longest Tunnel Page, edited by Gunnar Lotsberg

The World's longest, widest, highest and deepest canal, road and railway tunnels. Links to historic, current and future projects

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Glossary of Mining Terms - Coal Education

A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is t

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Frequently Asked Questions about the Golden Gate Bridge

Golden Gate Bridge Highway and Transportation District. WERE HARD HATS USED DURING CONSTRUCTION? Yes they were and here is how they came to be.

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Glossary of Mining Terms - rocksandminerals.com

Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is tran

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Surface Mining, Industry of Metals, Minerals, Precious

Types of surface mining . Strip mining: This process involves the method of extracting the mineral by removing soil and rock which are deposited on the surface.Coal and Lignite are the two principle minerals that are extracted through this method.

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The World's longest tunnel page - The longest Road Tunnels

List of the longest Road Tunnels in the World. Country, length and year of opening.

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Bridges & Tunnels - Port Authority of New York & New Jersey

Bayonne Bridge. Connects Staten Island, NY, and Bayonne, NJ. This steel arch bridge is one of the world's longest of its kind, with a majestic 1,675-foot central span and a new roadway 215 feet above the Kill Van Kull.

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