Property and Equipment, net

6 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

5. Property and Equipment, net

Property and equipment, net consists of the following:


	Useful Life	March 31, 2022		September 30, 2021
Land	—	$	43.3	$	42.2
Buildings and leasehold improvements	2-40 yrs.		44.3		38.6
Operating equipment	2-7 yrs.		277.1		239.1
Transportation vehicles	3-7 yrs.		314.6		288.4
Office equipment and software	3-10 yrs.		73.1		74.3
Construction in progress	—		3.9		4.1
Property and equipment			756.3		686.7
Less: Accumulated depreciation			455.0		422.3
Property and equipment, net		$	301.3	$	264.4

Construction in progress includes costs incurred for software and other assets that have not yet been placed in service. Depreciation expense related to property and equipment was $24.4 and $20.7 for the three months ended March 31, 2022 and 2021, respectively. Depreciation expense related to property and equipment was $45.8 and $42.3 for the six months ended March 31, 2022 and 2021, respectively.