Exhibit 99.1 Granite Reports Fourth Quarter and FY 2023 Results • Q4 revenue increased 18% year-over-year to $934 million • Q4 diluted EPS of$0.55 and adjusted diluted EPS (1) of $0.82 • Operating cash flow increased$150 million sequentially • Committed and Awarded Projects ("CAP") (2) of $5.5 billion, a year-over-year increase of$1.1 billion • 2024 guidance continues to align with previously provided targets WATSONVILLE, Calif. - Granite Construction Incorporated (NYSE: GVA) today announced results for ...