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Property
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property
PROPERTY
Property on the consolidated balance sheets includes the following (in millions):
 
December 31,
 
2014
 
2013
Buildings
$
586.7

 
$
560.0

Land
588.5

 
572.7

Machinery and equipment
236.1

 
230.9

Asphalt plants
65.5

 
48.0

Water, power and sewer systems
142.6

 
138.8

Other property improvements
90.7

 
90.2

Vessel
7.2

 
7.2

   Subtotal
1,717.3

 
1,647.8

Accumulated depreciation
(415.6
)
 
(374.1
)
   Property - net
$
1,301.7

 
$
1,273.7


Depreciation expense for the years ended December 31, 2014 and 2013 was $43.9 million and $34.8 million, respectively.