Property, Plant and Equipment

12 Months Ended

Sep. 30, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment at September 30, 2020 and 2019 consisted of the following (in thousands):

	September 30,
	2020		2019
Construction equipment	$	253,157	$	214,500
Plants	102,392		92,279
Land and improvements	40,614		34,365
Quarry reserves	20,238		20,678
Buildings	18,307		15,458
Furniture and fixtures	5,648		4,864
Leasehold improvements	1,135		1,135
Total property, plant and equipment, gross	441,491		383,279
Accumulated depreciation, depletion and amortization	(209,532)		(177,927)
Construction in progress	5,271		518
Total property, plant and equipment, net	$	237,230	$	205,870

Depreciation, depletion and amortization expense related to property, plant and equipment for the fiscal years ended September 30, 2020 and 2019 was $39.1 million and $30.1 million, respectively.