The Boating Infrastructure Grant (BIG) Program aims to construct, renovate, and maintain facilities for transient recreational vessels at least 26 feet long. Funding is available at both state and national levels, with applications due annually by June 1. Eligible activities include various infrastructure projects, informational materials specific to BIG, but exclude certain activities like law enforcement support or land acquisition. Grants require a minimum 25% matching funds, with the federal share not exceeding 75% of total costs. Contact the Wisconsin Department of Natural Resources for more information.