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Property and Equipment
 3 Months Ended
Mar. 31, 2024
Property, Plant and Equipment [Abstract]  
Property and Equipment
6.PROPERTY AND EQUIPMENT
Property and equipment are summarized as follows:
March 31, 2024December 31, 2023
Construction and transportation equipment$429,468 $405,242 
Buildings and improvements21,345 21,325 
Land3,054 3,054 
Office equipment4,023 4,023 
Total property and equipment457,890 433,644 
Less accumulated depreciation(199,088)(189,996)
Total property and equipment, net$258,802 $243,648 
Depreciation Expense—Depreciation expense is primarily included within cost of revenues and was $11,961 and $9,956 for the three months ended March 31, 2024 and 2023, respectively.