Property and Equipment

6 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

7. PROPERTY AND EQUIPMENT

Property and equipment are summarized as follows:

	June 30, 2020		December 31, 2019
Construction and transportation equipment	$	225,440	$	217,945
Buildings and improvements	17,267		14,641
Land	3,891		3,891
Office equipment	2,609		2,767
Total property and equipment	249,207		239,244
Less accumulated depreciation	(129,611)		(123,214)
Total property and equipment, net	$	119,596	$	116,030

Depreciation Expense—Depreciation expense is primarily included within cost of revenues and was $5,390 and $10,838 for the three and six months ended June 30, 2020, respectively, and $3,571 and $7,273 for the three and six months ended June 30, 2019, respectively.