§ 29.620 DEPRECIATION METHODS.
   (A)   Depreciating capital assets.
      (1)   The town will be depreciating capital assets by using either composite/group method depreciation or the straight-line method. Salvage value will be determined on an asset-by-asset basis. Depreciation will be calculated at year-end. Land is not depreciated according to general accepted accounting principles.
      (2)   A network of assets is composed of all assets that provide a particular type of service for government. A subsystem of a network of assets is composed of all assets that make a similar portion or segment of a network of assets. The following will be the breakdown of our networks and subsystems:
         Roads/Streets Network
            Subsystems:   Types of streets
                  Curbs
         Traffic Components Network
            Subsystems:   Traffic Signals
                  Street Lights
   (B)   Composite/group network.
      (1)   Composite depreciation refers to calculating depreciation for a collection of similar assets. A single composite rate is applied annually to the acquisition cost of the collection as a whole. At year-end an adjustment will be made to the total cost to account for any additions/disposals throughout the year. The accumulated depreciation associated with it will also be adjusted. A gain or loss will never be reported on the asset when using the composite method. A full year's depreciation will be taken when the asset is placed in service and no depreciation recorded in the year it is sold or disposed of. Dissimilar assets will be grouped by useful lives and the town's similar assets by networks. To determine the appropriate depreciation rate for the composite group, divide one by the number of years the assets are depreciated. For instance, a group of assets with a 25-year life will be depreciated at 4% each year (1/25).
      (2)   Following is the list of groups the town will use for depreciation:
         Composite/group depreciation.
         (a)   Street lights - 35 years.
         (b)   Traffic signals - 25 years.
         (c)   Flood walls/gates - 50 years.
         (d)   Roads.
            1.   Cement - 10 years.
            2.   Gravel - 15 years.
            3.   Concrete - 30 years.
            4.   Asphaltic concrete - 20 years.
            5.   Brick or stone - 50 years.
   (C)   Straight-line depreciation. All assets accounted for under the Capital Asset Policy will be depreciated using the straight-line method of depreciation. A gain or loss on disposal will be recorded. Following is a list of the most common useful lives:
      (1)   Vehicles - 5 years.
      (2)   Office equipment - 5 years.
      (3)   Office furniture - 20 years.
      (4)   Heavy equipment - 10 years.
      (5)   Fire trucks - 15 years.
      (6)   Buildings - 50 years.
      (7)   Building components (HVAC systems, roofing) - 20 years.
      (8)   Leasehold improvements - useful life of asset or lease term (whichever is shorter).
      (9)   Land improvements - structure (parking lots, athletic courts, swimming pools) - 20 years.
      (10)   Land Improvements - ground work (golf course, athletic fields, landscaping, fencing) - 20 years.
      (11)   Outdoor equipment - (playground equipment, radio towers) - 15 years.
      (12)   Grounds equipment - (mowers, tractors, attachments) - 15 years.
      (13)   Computer hardware - 3 years.
      (14)   Computer software - 5 years.
   (D)   Town utilities' useful lives are as follows:
      (1)   Water.
         (a)   Buildings and improvements - 50 years.
         (b)   Transmission and distribution mains - 50 years.
         (c)   Meters/hydrants - 50 years.
         (d)   Pumping equipment - 50 years.
         (e)   Water treatment equipment - 50 years.
         (f)   Reservoirs/tanks - 50 years.
         (g)   Furniture and equipment - 10 years.
         (h)   Other equipment - 10 years.
         (i)   Transportation equipment - 10 years.
         (j)   Shop and lab equipment - 10 years
         (k)   Computer equipment - 3 years.
         (l)   Communications equipment - 10 years.
      (2)   Sewer.
         (a)   Buildings and improvements - 50 years.
         (b)   Sewer lines - 50 years.
         (c)   Combined sewer overflow - 50 years.
         (d)   Lift station - 50 years.
         (e)   Treatment plant/equipment - 10 years.
         (f)   Office equipment - 5 years.
         (g)   Miscellaneous operating equipment - 5 years.
         (h)   Vehicles - 5 years.
(Ord. 011905, passed 1-19-2005)