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Goodwill and Other Intangible Assets
 3 Months Ended
Mar. 31, 2025
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,
2025		December 31,
2024
 (in millions)
Construction Products$843.2 $861.2 
Engineered Structures480.1 480.1 
Transportation Products19.9 19.9 
$1,343.2 $1,361.2 
The decrease in Construction Products goodwill during the three months ended March 31, 2025 is due to purchase price adjustments from the Stavola acquisition. See Note 2 Acquisitions and Divestitures.
Intangible Assets
Intangibles, net consisted of the following:
March 31,
2025		December 31,
2024
(in millions)
Intangibles with indefinite lives - Trademarks$43.8 $43.8 
Intangibles with definite lives:
Customer relationships169.1169.1
Permits178.1178.1
Other49.649.6
396.8396.8
Less accumulated amortization(109.6)(102.3)
287.2294.5
Intangible assets, net$331.0 $338.3