BOR performs dam failure inundation modeling and mapping in support of emergency evacuation planning and dam safety risk analysis. Interferometric Synthetic Aperture Radar (IFSAR), lidar, and other geospatial terrain data are used within an Esri ArcGIS environment for pre- and post-processing of numerical hydraulic models. Hydraulic modeling employs one- and two-dimensional modeling techniques and relies primarily on the models produced with MIKE software by DHI.
The Colorado River is the principal source of water for irrigation and domestic use in Arizona, southern California, and southern Nevada. To account for water use by each State or individual and to verify lands fallowed for conservation programs and other water management needs, the BOR routinely monitors more than 3.5 million acres of agriculture and riparian vegetation along the Lower Colorado River, from Hoover Dam south to the international border with Mexico.
Colorado River Delta - Water For the Environment and Environmental Benefits
The BOR administers the Operating Criteria and Procedures (OCAP) to determine irrigation status for the Newlands Reclamation Project, which covers approximately 61,000 acres in Nevada.
The San Joaquin River Restoration Program (SJRRP) is a comprehensive, long-term effort to revive the river’s self-sustaining Chinook salmon fishery by restoring water flows to the river from the Friant Dam to the confluence of Merced River, a distance of over 100 miles. A goal of the SJRRP is to mitigate or avoid adverse water supply impacts from the restoration releases.
Underwater construction projects typically require the creation of high-resolution 3D models of existing infrastructure to retrofit equipment such as gates, valves, trashracks, or bulkheads. Commercially available underwater laser scanning systems can be used to collect 3D point cloud data to facilitate project design. Scanning laser systems can also collect survey-grade bathymetry and 3D point clouds of underwater features. Point cloud data can be used to develop 3D computer models to compute estimates of lengths, areas, or volumes.