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v3.23.1

Employee Retirement Plans | 3 Months Ended
--- | ---
Mar. 31, 2023
Retirement Benefits [Abstract] |
Employee Retirement Plans | Employee Retirement Plans Total employee retirement plan expense, which includes related administrative expenses, is as follows:
| Three Months Ended March 31, |  |
| 2023 |  | 2022 |  |  |  |
| (in millions)
Defined contribution plans | $ | 3.6 |  |  | $ | 3.2 |  |  |  |  |
Multiemployer plan | 0.4 |  |  | 0.4 |  |  |  |  |
| $ | 4.0 |  |  | $ | 3.6 |  |  |  |  |
The Company contributes to a multiemployer defined benefit plan under the terms of a collective-bargaining agreement that covers certain union-represented employees at one of the facilities of Meyer Utility Structures, a subsidiary of Arcosa. The Company contributed $0.4 million to the multiemployer plan for the three months ended March 31, 2023 and 2022. Total contributions to the multiemployer plan for 2023 are expected to be approximately $1.5 million.

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