Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Arcosa, Inc. Announces First Quarter 2026 Results and Raises Full Year 2026 Guidance for Continuing Operations DALLAS, Texas - ARCOSA, Inc. - April 30, 2026: Arcosa, Inc. (NYSE: ACA) ("Arcosa," the "Company," "We," or "Our"), a provider of infrastructure-related products and solutions, today announced results for the first quarter ended March 31, 2026. First Quarter 2026 Consolidated Highlights | | | Three Months Ended March 31, | | | --- | --- | --- | --- | | ...