Seattle City Light 2016 ANNUAL REPORT | Audited Financial Statements 33 THE CITY OF SEATTLE—CITY LIGHT DEPARTMENT NOTES TO FINANCIAL STATEMENTS AS OF AND FOR THE YEARS ENDED DECEMBER 31, 2016 AND 2015 - 33 - Utility plant-in-service at original cost, including land at December 31, 2016, and 2015, was: Hydroelectric Production Transmission Distribution General Intangible Total 2016 ($ in millions) Utility Plant-in-service - At original cost: Plant-in-service, excluding Land: 1/1/2016 Balance 821.1 $ 230.9 $ 2,295.6 $ 338.5 $ 482.1 $ 4,168.2 $ Acquisitions 27.8 13.9 133.6 30.7 96.1 302.1 Dispositions (1.9) (2.6) (20.3) (0.8) (34.4) (60.0) Transfers and adjustments - - - - - - 12/31/2016 Balance 847.0 242.2 2,408.9 368.4 543.8 4,410.3 Accumulated depreciation and amortization: 1/1/2016 Balance 347.7 82.5 836.0 214.3 191.3 1,671.8 Increase in accumulated depreciation and amortization 16.2 5.4 71.1 17.4 17.6 127.7 Retirements (2.9) (2.7) (25.6) (1.1) (34.4) (66.7) PY Adjustments - - - - 2.5 2.5 12/31/2016 Balance 361.0 85.2 881.5 230.6 177.0 1,735.3 SubTotal Plant-in-service - Net, excluding Land: 486.0 $ 157.0 $ 1,527.4 $ 137.8 $ 366.8 $ 2,675.0 $ Land and land rights: 1/1/2016 Balance 50.6 $ 3.0 $ 13.4 $ 5.7 $ - $ 72.7 $ Acquisitions 0.6 - - 0.9 - 1.5 Dispositions - - - - - - Transfers and adjustments 0.8 - - - - 0.8 12/31/2016 Balance 52.0 3.0 13.4 6.6 - 75.0 Tot Total Plant-in-service - Net, including Land: 538.0 $ 160.0 $ 1,540.8 $ 144.4 $ 366.8 $ 2,750.0 $