Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Tables)

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Property, Plant and Equipment (Tables)
 9 Months Ended
Jun. 30, 2024
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment at June 30, 2024 and September 30, 2023 consisted of the following (in thousands):
June 30, 2024 September 30, 2023
(unaudited)
Construction equipment $ 525,969  $ 447,467 
Plants 243,759  208,708 
Land and improvements 85,402  76,396 
Mineral reserves 69,405  69,405 
Buildings 37,973  36,885 
Furniture and fixtures 8,277  7,538 
Leasehold improvements 1,326  1,268 
      Total property, plant and equipment, gross 972,111  847,667 
Accumulated depreciation, depletion and amortization (406,702) (358,462)
Construction in progress 13,697  15,890 
      Total property, plant and equipment, net $ 579,106  $ 505,095