Property and Equipment

12 Months Ended

Sep. 30, 2022

Property, Plant and Equipment [Abstract]

Property and Equipment, net

6. Property and Equipment, net

Property and equipment, net consists of the following:

	Useful Life	September 30, 2022		September 30, 2021
Land	—	$	43.3	$	42.2
Buildings and leasehold improvements	2-40 yrs.		46.3		38.6
Operating equipment	2-7 yrs.		302.4		239.1
Transportation vehicles	3-7 yrs.		339.8		288.4
Office equipment and software	3-10 yrs.		75.1		74.3
Construction in progress	—		5.7		4.1
Property and equipment			812.6		686.7
Less: Accumulated depreciation			484.3		422.3
Property and equipment, net		$	328.3	$	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 $98.9, $84.7 and $80.5 for the years ended September 30, 2022, September 30, 2021 and September 30, 2020, respectively.