Property, Plant and Equipment

9 Months Ended

Sep. 30, 2022

Property, Plant and Equipment [Abstract]

The carrying value of property, plant and equipment is as follows:


(Thousands)	Depreciable Lives	September 30, 2022		December 31, 2021
Land	Indefinite	$	28,678	$	28,449
Building and improvements	3 - 40 years	361,592		359,980
Poles	30 years	293,504		281,130
Fiber	30 years	4,354,532		4,107,519
Equipment	5 - 7 years	375,340		331,761
Copper	20 years	3,955,180		3,918,281
Conduit	30 years	89,925		89,859
Tower assets	20 years	8,544		8,544
Finance lease assets	(1)	73,203		72,284
Other assets	15 - 20 years	10,451		10,652
Corporate assets	3 - 7 years	14,775		14,326
Construction in progress	(1)	40,141		27,366
		9,605,865		9,250,151
Less accumulated depreciation		(5,912,284)		(5,741,212)
Net property, plant and equipment		$	3,693,581	$	3,508,939

(1) See our Annual Report for property, plant and equipment accounting policies.

Depreciation expense for the three and nine months ended September 30, 2022 was $66.1 million and $194.9 million, respectively. Depreciation expense for the three and nine months ended September 30, 2021 was $65.7 million and $196.8 million, respectively.