cliffsides

Those scars in the cliffsides are a reminder of the danger lurking in the Afghan hills.

What I Saw in Afghanistan 2008

Those scars in the cliffsides are a reminder of the danger lurking in the Afghan hills.

What I Saw in Afghanistan 2008

Adits had been driven into both cliffsides and the first pioneer tunnels were being excavated.

Colossus Michael Hiltzik 2010

For a full ten minutes, titanic jets of debris shot out from both cliffsides and thudded into the water, filling the gorge with a thick cloud of dust in what the Review-Journal judged to be “an amazing celebration of the triumph of diversion.”

Colossus Michael Hiltzik 2010

Possibly hoping to give the onlookers a sight they would never forget, Crowe arranged for the blast at Tunnel No. 4 to be followed almost immediately by a sequence of explosions along both canyon walls, some 3,500 charges in all, to shake from the cliffsides every shard of loose rock that might imperil the excavation crews who would soon be working in the dry riverbed.

Colossus Michael Hiltzik 2010

Crowe started the tunnels by driving adits, shafts eight by ten feet in cross-section, horizontally from the cliffsides to intersect with the planned routes of the main tunnels.

Colossus Michael Hiltzik 2010

Possibly hoping to give the onlookers a sight they would never forget, Crowe arranged for the blast at Tunnel No. 4 to be followed almost immediately by a sequence of explosions along both canyon walls, some 3,500 charges in all, to shake from the cliffsides every shard of loose rock that might imperil the excavation crews who would soon be working in the dry riverbed.

Colossus Michael Hiltzik 2010

Upstream, overlooking the site of the reservoir, spires of concrete-encased steel reinforcing bars marked where four cylindrical intake towers were to rise in pairs, 390 feet tall, from shelves jackhammered into the cliffsides.

Colossus Michael Hiltzik 2010

For more spectacular views, Big Bend National Park's 30-mile Maxwell Scenic Drive supplies dusty ranches of long-ago rangers, terra-cotta cliffsides and a jaw-dropping expanse of sky that's revealed each evening to exhibit a sea of stars that puts any planetarium to shame.

The Best Labor Day Road Trips 2010

Conventional metrics of shear, twist, tension, and compression could not easily be applied in Black Canyon because of the dynamic interactions between the dam and the canyon—as the dam deformed the canyon, the tension and compression applied to the structure by the cliffsides would themselves change.

Colossus Michael Hiltzik 2010