Property, Plant, and Equipment (Tables)

6 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment at March 31, 2022 and September 30, 2021 consisted of the following (in thousands):

	March 31, 2022		September 30, 2021
	(unaudited)
Construction equipment	$	377,311	$	333,966
Plants	153,140		143,172
Mineral reserves	86,920		$	86,556
Land and improvements	61,547		53,415
Buildings	29,720		27,163
Furniture and fixtures	6,639		6,426
Leasehold improvements	1,230		1,230
Total property, plant and equipment, gross	716,507		651,928
Accumulated depreciation, depletion and amortization	(275,953)		(250,803)
Construction in progress	14,076		3,707
Total property, plant and equipment, net	$	454,630	$	404,832