Dusty Spalls-sounds like the name of a cowboy in an old “B” western film. These quarry spalls came with enough crushed rock dust to create a fugitive dust cloud when dropped into a “skip” box.
October 27, 2020
September 9, 2020
Berm for Quarry Spalls
This would not have been my choice as a berm for quarry spalls; straw wattles are too light to use on asphalt and they allow water to flow under them. A compost sock, being heavy, would work better, though, they are prone to tearing. An asphalt berm might be best here.
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October 2, 2020
Excellent Tire Wash
This here is an excellent tire wash. Why? Because it is long enough for two tire rotations. In addition, quarry spalls are installed at the entrance and exit of the tire wash. To the left of the tire wash, the contractor placed quarry spalls so vehicles entering the project don’t have to drive through the tire wash.
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September 27, 2020
Erosion Control Photos
All photos may be used for teaching and training purposes with attribution to: David Jenkins, sheetflow.com
Photos may not be used for commercial purposes without prior express permission from David Jenkins, sheetflow.com
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June 16, 2016
Paying for TESC
The Best Way to Measure and Pay for TESC in Public Works Contracts
It is a big mistake to make temporary erosion and sediment an “incidental” item in a public works contract. Anything that can be measured should be and set up as a Unit Price item. Planning and Implementation can be lump sum but measurement and payment must be clearly specified. Force Account is set up for unforeseen conditions; the amount is set by the owner so that everyone bids the same number. Make clear at the pre-bid meeting that the Lump Sum bid for planning and implementation covers lots of stuff and they need to bid accordingly. Here is an example of the best way to pay: (more…)
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June 25, 2015
Low Impact Construction
Low Impact Development for Public Works Construction:
Erosion and Sediment Control Compliance
David S. Jenkins, Seattle, Washington
Introduction
Construction is a messy business; in the Puget Sound region of western Washington, with average annual rainfall of 40″ to 60″, it can also be challenging. Uncontrolled erosion from a construction site can generate 10-1000 times the quantity of sediment that occurs naturally from vegetated areas. Most construction in western Washington occurs near wetlands, streams, lakes, or the Puget Sound where sediment loss can reduce beneficial uses, or worse, destroy a salmon stream.
This paper will discuss proven methods that public works professionals can utilise to improve erosion control compliance and reduce project impacts.
(more…)
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