PROPERTY AND EQUIPMENT

9 Months Ended

Sep. 30, 2017

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT

NOTE 6.     PROPERTY AND EQUIPMENT

Property and equipment consisted of the following:

	September 30,		December 31,
$s in thousands	2017		2016
Cell development costs	$	141,522	$	128,821
Land and improvements		36,302		34,285
Buildings and improvements		85,774		78,081
Railcars		17,299		17,299
Vehicles and other equipment		117,066		110,267
Construction in progress		21,535		24,392
Total property and equipment		419,498		393,145
Accumulated depreciation and amortization		(188,624)		(166,908)
Property and equipment, net	$	230,874	$	226,237

Depreciation and amortization expense for the three months ended September 30, 2017 and 2016 was $7.4 million and $6.5 million, respectively. Depreciation and amortization expense for the nine months ended September 30, 2017 and 2016 was $21.0 million and $18.6 million, respectively.