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Goodwill and Other Intangible Assets
 3 Months Ended
Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
Goodwill
Goodwill by segment is as follows:
March 31,
2023		December 31,
2022
 (in millions)
Construction Products$501.9 $483.9 
Engineered Structures437.6 437.6 
Transportation Products37.0 37.0 
$976.5 $958.5 

The increase in Construction Products goodwill during the three months ended March 31, 2023 was due to acquisitions completed during the quarter and measurement period adjustments from the acquisition of RAMCO. See Note 2 Acquisitions and Divestitures.
Intangible Assets
Intangibles, net consisted of the following:
March 31,
2023		December 31,
2022
(in millions)
Intangibles with indefinite lives - Trademarks$34.1 $34.1 
Intangibles with definite lives:
Customer relationships136.9136.9
Permits141.7141.7
Other2.72.7
281.3281.3
Less accumulated amortization(64.5)(59.3)
216.8222.0
Intangible assets, net$250.9 $256.1