Proceedings of the World Environmental and Water Resources Congress 2014: Water without Borders, held in Portland, Oregon, June 1-5, 2014. Sponsored by the Environmental and Water Resources Institute of ASCE. This collection contains 233 papers covering a broad range of current research and practice in the field of environmental and water resources engineering with a focus on trans-boundary water management. Papers from the following symposia are included: 11th Urban Watershed Management Symposium; 12th Symposium on Groundwater Hydrology, Quality, and Management; 16th Annual Symposium on Water Distribution Systems Analysis; 2nd Annual Symposium on Desalination and Water Reuse; 2014 Hydro-Climate Symposium on Modeling Climate Change; International Symposium on the Columbia River Basin; and Water Systems Planning under Climate Change Symposium. Additional topics include integrated water resources management; education and research; hydraulics and waterways; environmental planning and management; water, wastewater and stormwater management; and history and heritage. This proceedings will be of interest to a wide range of engineers in academic research, government agencies, and private sector design and construction.