Abstract: Rainstorm-induced disaster risk zonation facilitates the shift from passive disaster response to proactive prevention and provides technical support for the defense against highway water-related damages. Based on hourly precipitation data from 81 national-level meteorological observation stations (2003–2024) and 202 provincial-level meteorological observation stations (2017–2024) along highways in Hubei Province, water damage information, and digital elevation model (DEM), slope, aspect, and lithology, this study first analyzed the distribution characteristics of water damage disasters on the expressways in Hubei Province. Then, indicator factors for rainstorm-induced hazard risk and disaster-pregnant environment sensitivity were selected, determined the weight of each indicator using the Analytic Hierarchy Process (AHP), constructed a rainstorm-induced disaster risk assessment model for expressways in Hubei Province and conduct comprehensive risk zonation. Finally, the zoning results were verified using the actual water damage disaster situation. The results show that: (1) Water-related for expressways damages in Hubei Province are mainly distributed in the southwestern, southeastern, northwestern, and northeastern regions, while the Jianghan Plain experiences fewer highway water-related damages. In the southeastern and northeastern regions, waterlogging dominates, accounting for 56.5%, whereas in the southwestern and northwestern regions, landslides are the primary form of damage, accounting for 61.7%. (2) The rainstorm-induced hazard of expressways in Hubei Province is characterized by high levels in the east and southwest, and low levels in the north and central regions. High-hazard areas are located on highways in Xianning, Tianmen, Xiantao (eastern Hubei) and Enshi, Yichang (southwestern Hubei), while low-hazard areas include northwestern Hubei, trunk roads in Wuhan, Jingmen and southern Huanggang. (3) The zoning results were validated using 108 rainstorm-induced disaster cases from water damage disasters along expressways in Hubei Province (2016-2024). The analysis revealed that areas classified as sub-low risk or higher in southeastern, southwestern, and parts of northeastern Hubei accounted for 71.3% of disaster occurrences, the zoning results have a relatively good indicative effect..