Estados Financieros, (Inglés, Español) - Túnel San Cristóbal

8. PROPERTY, PLANT AND EQUIPMENT
The property, plant and equipment acquired by the Company at this date is recognized at its attributed cost, less accumulated
depreciation and the accumulated losses for deterioration. According to the evaluations performed, there are no deterioration
indicators affecting the values recorded by the Company.
The depreciation of these assets is calculated using the straight line method, being distributed on a systematic way throughout
its useful life according to the table referred to in Note 2.2.f.
a) The composition by class of Property, Plant and Equipment at each period-end, at net and gross values, is as follows:
12/31/2011 12/31/2010
Accumulated
Accumulated
Concept Gross value
ThCh$
Depreciation
ThCh$
Net value
ThCh$
Gross value
ThCh$
Depreciation
ThCh$
Net value
ThCh$
Office furniture 25,997 (18,193) 7,804 25,997 (14,506) 11,491
Office equipment 26.447 (16,965) 9,482 26,027 (12,674) 13,353
Computer equipment 102.483 (65,873) 36,610 89,830 (51,062) 38,768
Vehicles 102,565 (63,022) 39,543 102,565 (45,707) 56,858
Security equipment 99,269 (52,656) 46,613 89,496 (36,714) 52,782
Third party installations 15.676 (5,303) 10,373 15,676 (3,740) 11,936
Own property on the road 5.120 (610) 4,510
Totals 377,557 (222,622) 154,935 349,591 (164,403) 185,188
b) The movements at December 31, 2011 of the items that comprise property, plant and equipment are the following:
Movements
Office
furniture
Office
equipment
Computer
equipment
c) The movements at December 31, 2010 of the items that comprise property, plant and equipment are the following:
Vehicles
Safety
equipment
3rd party
installations
Own
property on
the road
Property,
plant and
equipment,
net
ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$
Balance at 01/01/11 11,491 13,353 38,768 56,858 52,782 11,936 - 185,188
Additions - 420 12,653 - 9,773 - 5,120 27,966
Depreciation expense (3,687) (4,291) (14,811) (17,315) (15,942) (1,563) (610) (58,219)
Other increases (decreases) - - - - - - - -
Balance at 12/31/11 7,804 9,482 36,610 39,543 46,613 10,373 4,510 154,935
Movements
Office
furniture
Office
equipment
Computer
equipment
Vehicles
Safety
equipment
3rd party
installations
Own
property
on the road
Property,
plant and
equipment,
net
ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$ ThCh$
Balance at 01/01/10 12,594 1 72,113 76,923 67,794 13,500 - 242,925
Additions 314 410 - - - - - 724
Depreciation expense (3,677) (4,251) (13,893) (15,465) (15,012) (1,564) - (53,862)
Other increases (decreases) 2,260 17,193 (19,452) (4,600) - - - (4,599)
Balance at 12/31/10 11,491 13,353 38,768 56,858 52,782 11,936 - 185,188
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