GOODWILL AND INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2012

GOODWILL AND INTANGIBLE ASSETS

Components of amortized intangible assets

	March 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	158,255	$	53,668	13 years
Proprietary Software & Database		3,130		2,739	6 years
Patents & Proprietary Technology		9,707		4,323	8 years
Non-compete Agreements		1,826		1,377	6 years
	$	172,918	$	62,107

	December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	155,629	$	50,107	13 years
Proprietary Software & Database		3,116		2,711	6 years
Patents & Proprietary Technology		9,489		3,863	8 years
Non-compete Agreements		1,812		1,307	6 years
	$	170,046	$	57,988

Schedule of future estimated amortization expense

	Estimated Amortization Expense
2012	$	14,243
2013		13,383
2014		12,957
2015		12,060
2016		11,479

Non-amortized intangible assets

	March 31, 2012		December 31, 2011		Year Acquired
Webforge	$	17,266	$	16,659		2010
Newmark		11,111		11,111		2004
Ingal EPS/Ingal Civil Products		9,113		8,792		2010
Donhad		6,875		6,633		2010
PiRod		1,750		1,750		2001
Industrial Galvanizers		3,997		3,856		2010
Other		7,336		7,224
	$	57,448	$	56,025

Carrying amount of goodwill

	Engineered Infrastructure Products Segment		Utility Support Structures Segment		Coatings Segment		Irrigation Segment		Other		Total
Balance December 31, 2011	$	151,558	$	77,141	$	64,820	$	2,576	$	18,567	$	314,662
Foreign currency translation		5,204		—		51		23		677		5,955
Balance March 31, 2012	$	156,762	$	77,141	$	64,871	$	2,599	$	19,244	$	320,617