Exhibit 99.1 Granite Reports Second Quarter 2025 Results WATSONVILLE, Calif. - Granite Construction Incorporated (NYSE: GVA) today announced results for the quarter ended June 30, 2025. Second Quarter 2025 Results Net income attributable to Granite totaled $72 million, or$1.42 per diluted share, compared to net income attributable to Granite of $37 million, or$0.76 per diluted share, for the same period in the prior year. Adjusted net income attributable to Granite (2) totaled $86 million, or$1.93 per di ...