Property, plant and equipment at December 31 was as follows:
20252024
Depreciable Lives
(In thousands)
Land$229,551 $175,313 
Aggregate reserves847,472 624,280 *
Buildings and improvements291,893 241,129 
15-30
Machinery, vehicles and equipment2,050,249 1,721,427 
3-30
Construction in progress90,073 43,535 
Less: accumulated depreciation and depletion1,480,305 1,363,984 
Net property, plant and equipment$2,028,933 $1,441,700 
__________________
*Depleted on the units-of-production method based on proven and probable aggregate reserves.

Historical Timeline

Fiscal YearFiled
2025Feb 20, 2026Showing above
2024Feb 21, 2025
2023Feb 27, 2024

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.