Property and Equipment, net

9 Months Ended

Jun. 30, 2023

Property, Plant and Equipment [Abstract]

5. Property and Equipment, net

Property and equipment, net consists of the following:


	Useful Life	June 30, 2023		September 30, 2022
Land	—	$	44.7	$	43.3
Buildings and leasehold improvements	2-40 yrs.		46.8		46.3
Operating equipment	2-7 yrs.		343.8		302.4
Transportation vehicles	3-7 yrs.		348.4		339.8
Office equipment and software	3-10 yrs.		79.0		75.1
Construction in progress	—		5.3		5.7
Property and equipment			868.0		812.6
Less: Accumulated depreciation			537.3		484.3
Property and equipment, net		$	330.7	$	328.3

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 $26.4 and $25.7 for the three months ended June 30, 2023 and 2022, respectively. Depreciation expense related to property and equipment was $80.9 and $71.5 for the nine months ended June 30, 2023 and 2022, respectively.