§ 35.006 ESTIMATED USEFUL LIVES OF DEPRECIABLE ASSETS.
   (A)   Capital assets have estimated useful lives extending beyond a single reporting period (one year) and are depreciated using the straight-line method with no allowance for salvage value. The estimated useful lives currently used were developed with the input of knowledgeable staff and reflect our government's experience with these assets:
Land
non-depreciable
Improvements to land
20 years
Storm sirens
10 years
Buildings
50 years
Furnishings and equipment
5 years
Vehicles
   Autos
5 years
   Light trucks
10 years
   Heavy trucks
15 years
   Boats
5 years
General infrastructure
   Streets
50 years
   Streetlights
20 years
   Lock and dam
50 years
   Water distribution
50 years
   Sanitary sewer waste collection
50 years
   Storm drainage
50 years
Waste treatment plant
25 years
Computer software
5 years
 
   (B)   Any future changes to estimated useful lives will be applied prospectively.
(Ord. 2020-19, passed 11-10-2020)