Property and Equipment, net

9 Months Ended

Jun. 30, 2021

Property Plant And Equipment [Abstract]

5. Property and Equipment, net

Property and equipment, net consists of the following:


	Useful Life	June 30, 2021		September 30, 2020
Land	—	$	42.3	$	40.0
Buildings and leasehold improvements	2-40 yrs.		30.7		30.3
Operating equipment	2-7 yrs.		235.5		208.2
Transportation vehicles	3-7 yrs.		285.0		262.8
Office equipment and software	3-10 yrs.		71.4		68.1
Construction in progress	—		5.6		5.0
Property and equipment			670.5		614.4
Less: Accumulated depreciation			401.5		362.9
Property and equipment, net		$	269.0	$	251.5

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 $21.3 and $20.9 for the three months ended June 30, 2021 and 2020, respectively. Depreciation expense related to property and equipment was $63.6 and $60.4 for the nine months ended June 30, 2021 and 2020, respectively.