Property and Equipment, net

6 Months Ended

Mar. 31, 2024

Property, Plant and Equipment [Abstract]

5. Property and Equipment, net

Property and equipment, net consists of the following:


	Useful Life	March 31, 2024		September 30, 2023
Land	—	$	44.7	$	44.7
Buildings and leasehold improvements	2-40 yrs.		46.7		45.6
Operating equipment	2-7 yrs.		350.4		338.8
Transportation vehicles	3-7 yrs.		356.6		351.9
Office equipment and software	3-10 yrs.		75.7		68.7
Construction in progress	—		4.1		7.7
Property and equipment			878.2		857.4
Less: Accumulated depreciation			574.2		542.2
Property and equipment, net		$	304.0	$	315.2

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 $26.1 and $27.4 for the three months ended March 31, 2024 and 2023, respectively. Depreciation expense related to property and equipment was $51.7 and $54.5 for the six months ended March 31, 2024 and 2023, respectively.