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Goodwill and Other Intangible Assets
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
Goodwill
Goodwill by segment is as follows:
September 30,
2023		December 31,
2022
 (in millions)
Construction Products$492.0 $483.9 
Engineered Structures437.6 437.6 
Transportation Products37.0 37.0 
$966.6 $958.5 
The increase in Construction Products goodwill during the nine months ended September 30, 2023 was primarily due to acquisitions completed during the period and final measurement period adjustments from the acquisition of RAMCO. See Note 2 Acquisitions and Divestitures.
Intangible Assets
Intangibles, net consisted of the following:
September 30,
2023		December 31,
2022
(in millions)
Intangibles with indefinite lives - Trademarks$34.9 $34.1 
Intangibles with definite lives:
Customer relationships138.7136.9
Permits141.8141.7
Other2.72.7
283.2281.3
Less accumulated amortization(71.1)(59.3)
212.1222.0
Intangible assets, net$247.0 $256.1