PROPERTY, PLANT, AND EQUIPMENT

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following (in thousands):



	December 31, 2013		December 31, 2012 (As Adjusted)
Land	$	99,794	$	104,379
Asset retirement costs (non-landfill)	10,938		10,111
Landfill assets	100,983		77,952
Buildings and improvements	327,956		359,816
Camp equipment	187,831		135,827
Vehicles	425,296		385,172
Equipment	1,201,296		1,034,856
Furniture and fixtures	5,260		3,735
Construction in progress	58,010		34,124
	2,417,364		2,145,972
Less - accumulated depreciation and amortization	815,194		612,919
Total property, plant and equipment, net	$	1,602,170	$	1,533,053

Interest in the amount of $0.9 million, $0.2 million and $0.5 million was capitalized to fixed assets during the years ended December 31, 2013, 2012 and 2011, respectively. Depreciation and amortization expense was $212.5 million, $127.2 million and $99.9 million for the years ended December 31, 2013, 2012 and 2011, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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