Property and equipment, net consists of the following:


	Useful Life	March 31, 2026		September 30, 2025
Land	—	$	42.9	$	42.9
Buildings and leasehold improvements	2-40 yrs.		49.4		48.5
Operating equipment	2-7 yrs.		459.0		443.3
Transportation vehicles	3-7 yrs.		540.2		491.9
Office equipment and software	3-10 yrs.		57.4		56.3
Construction in progress	—		4.3		9.6
Property and equipment			1,153.2		1,092.5
Less: Accumulated depreciation			591.6		550.9
Property and equipment, net		$	561.6	$	541.6

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 $47.4 and $31.8 for the three months ended March 31, 2026 and 2025, respectively. Depreciation expense related to property and equipment was $90.3 and $62.3 for the six months ended March 31, 2026 and 2025, respectively.