2016

    

2015

 

Land (mineral bearing) and asset retirement costs

 

$

227,558

 

$

142,645

 

Land (non-mineral bearing)

 

 

146,099

 

 

151,008

 

Buildings and improvements

 

 

160,638

 

 

133,043

 

Plants, machinery and equipment

 

 

965,522

 

 

860,085

 

Mobile equipment and barges

 

 

307,885

 

 

231,523

 

Truck and auto fleet

 

 

32,236

 

 

24,539

 

Landfill airspace and improvements

 

 

48,513

 

 

48,513

 

Office equipment

 

 

26,096

 

 

17,708

 

Construction in progress

 

 

16,459

 

 

26,447

 

Property, plant and equipment

 

 

1,931,006

 

 

1,635,511

 

Less accumulated depreciation, depletion and amortization

 

 

(484,554)

 

 

(366,505)

 

Property, plant and equipment, net

 

$

1,446,452

 

$

1,269,006