特朗普政府已在德克萨斯州大本德国家公园及周边地区启动边境墙扩建工程[1]。推土机正在现场进行施工，包括清理植被、建设车辆障碍、安装监控系统和修建巡逻道路[1]。大本德边境部门管辖范围约为517英里[1]，该地区在2021至2025财年间记录了超过89,000起移民遭遇事件[1]。
该项目面临来自国会两党、环保组织和当地旅游业的强烈反对[1]。生物多样性中心代表Laiken Jordahl将此称为"数代以来对美国国家公园最可怕的攻击"[1]。反对者担忧施工将破坏沙漠生态系统，改变公园的特征[1]。国土安全部则辩称，该基础设施对加强边境安全属必要措施[1]。
从移民统计数据看，该地区的遭遇数量出现下降趋势。2026年6月记录了148起遭遇，较2023年6月的412起下降64%[1]；2026财年前九个月（10月至6月）的遭遇记录为1,509起，较2023年同期的10,291起下降约85%[1]。
The Trump administration has initiated construction at Big Bend National Park in Texas to expand border barrier infrastructure, with bulldozers clearing vegetation and preparing to build vehicle obstacles, surveillance systems, and patrol roads in and around the protected area [1]. The project has drawn sharp criticism from environmental organizations, bipartisan congressional members, and local tourism interests who fear the work will damage the desert ecosystem and fundamentally alter the character of the national park [1].
The Department of Homeland Security has defended the project as necessary infrastructure for strengthening border security along the approximately 517-mile stretch of border that the Big Bend sector covers [1]. According to the agency's data, the Big Bend Border Patrol sector recorded more than 89,000 migrant encounters between fiscal years 2021 and 2025 [1]. However, encounter rates have declined significantly in recent months: the sector recorded 148 encounters in June 2026, down 64 percent from 412 in June 2023, and documented 1,509 encounters during the first nine months of fiscal year 2026, representing an approximately 85 percent decrease compared to the same period in 2023 [1].
Environmental advocates have voiced strong opposition to the construction initiative. Laiken Jordahl of the Center for Biological Diversity characterized the project as "the most egregious attack on an American national park in generations" [1].