PROPERTY AND EQUIPMENT

12 Months Ended

Dec. 31, 2021

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT

NOTE 11. PROPERTY AND EQUIPMENT

Property and equipment as of December 31, 2021 and 2020 consisted of the following:

$s in thousands	2021		2020
Cell development costs	$	203,217	$	186,170
Land and improvements		74,298		65,953
Buildings and improvements		138,659		128,206
Railcars		17,299		17,299
Vehicles, vessels and other equipment		350,950		331,167
Construction in progress		54,609		44,840
Total property and equipment		839,032		773,635
Accumulated depreciation and amortization		(382,648)		(316,998)
Property and equipment, net	$	456,384	$	456,637

Depreciation and amortization expense was $70.8 million, $66.6 million and $41.4 million for the years ended December 31, 2021, 2020 and 2019, respectively.