Apr 23 2012

A Few Good Reads (4/23/12): The Slow Climb Out of Recession

This week: The slow recovery in the AEC industry, more room needed on the Missouri, the threat of earthquakes to Delta levees, more rain and flooding in NSW, and the potential for photogrammetry to make laser scanning obsolete.

The Top 500 Design Firms Start to Rise Above Economic Woes (Engineering News-Record)

On the domestic side, the picture is not as rosy. The Top 500 did see a gain in revenue from projects in the U.S., but the gain was only 1.6%, to $58.62 billion in 2011 from $57.87 billion in 2010. This is a far cry from the record $68.14 billion in domestic design revenue generated in 2008.

Corps: more room needed in Missouri River channel, not reservoirs, for flooding (Missourinet)

“We’ve got to have adequate channel capacity to accommodate whatever flow we decide to.” What that means is, “generally, it’s moving the levees further back to accommodate whatever flow you want to design an improved system to.”

Delta's levees

Hundreds of millions spent to protect Delta levees. Is it enough? (Contra Costa Times)

In one nightmare scenario, an earthquake during a dry season collapses several levees. The ensuing flooding draws saltwater into the area of huge pumps that serve water users across California. If that happened, little could be done but to turn off the pumps and wait for enough runoff from mountain rivers to drive the saltwater out.

Eastwood flooding

When it rains, it really pours – wild weather lashes NSW (news.com.au)

A carpark a Eastwood, in Sydney’s north, became an inland sea yesterday as flash flooding caused havoc on roads, inundated homes and cut power to suburbs.

Will photogrammetry make laser scanning obsolete? (Spar Point Group)

all three agreed, when you factor in the cost of the data acquisition and the speed with which the photos can now be converted to point clouds, there’s now a much more interesting calculation that 3D data capture professionals can make about how much accuracy they really need, what the data will be used for, and how easily the data can be collected.

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