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Bulletins & Updates

These updates are brief and current news releases for Bureau of Reclamation end users, stakeholders, and other parties interested in Reclamation's Research and Development Program findings. You can also view updates from 2012, 2011 or previous fiscal years.

Photo with caption: Physical model of stepped spillway and stilling basin.
Improving the Range of Hydraulic Performance of Type III Stilling Basins:
Determining how stepped chutes affect stilling basin performance
"Understanding how features such as stepped spillways and modified baffle blocks affect stilling basin performance is an important step in extending the operational range of Type III stilling basins."
Connie Svoboda, Hydraulic Engineer, Reclamation
Bulletin 2013-14: Stepped Chutes Stilling Basin (PDF, 286 kB)
Photo with caption: Terrain surface from LiDAR data.
Filtering Light Detection and Ranging (LiDAR) Data for Rivers:
A literature review of LiDAR tools, methods, and best practices
"Overall, this will allow for more accurate analyses of geomorphic forms, processes, and habitat types and provide a basis for more accurate engineering analyses and design."
Christopher Cuhaciyan, Project Manager, Reclamation
Bulletin 2013-13: LIDAR for Rivers (PDF, 329 kB)
Photo with caption: The Raven launch at Aldwell Reservoir on the Elwha
River, Washington..
Using Unmanned Aerial Vehicles:
Determining how Unmanned Aerial Systems (UAS) can help meet Reclamation's remote sensing data needs
"Reclamation's UAS community of interest now has over 50 people, from every Reclamation region including directors, group managers, information resource personnel, dam safety experts, hydraulic engineers, geographic information systems scientists, geographers, civil engineers, geologists, soil scientists, meteorologists, emergency management staff, remote sensing specialists, and information management specialists. This shows the wide-spread interest in this technology."
Douglas Clark, Physical Scientist, Reclamation
Bulletin 2013-12: Unmanned Aerial Vehicles (PDF, 207 kB)
Photo with caption: Coring an old Utah Juniper.
Using Tree Rings Analysis to Reconstruct Paleoclimate and Streamflows:
Using tree rings to determine historic climate conditions in Utah
"This information confirms the climate change that we have been seeing in our annual operations, and we can use this information in future planning."
Fred Liljegren, Outdoor Recreation Planner, Reclamation
Bulletin 2013-11: Tree Ring Analysis (PDF, 268 kB)
Photo with caption: Chamber for measuring sediment on reservoir bottoms. The rubber seals create a better seal on uneven bottom surfaces.
Modeling Changes in Water Quality From Sediment Delta Interactions:
Determining the implications of reservoir drawdowns for sediment delta interactions
"Sediment nutrient cycling and processes are complex. This research is providing tools and methods to help us understand these important processes."
Dr. Gustavious Williams, Associate Professor, Civil and Environmental Engineering, Brigham Young University, Provo, Utah
Bulletin 2013-10: Sediment Delta Interactions (PDF, 282 kB)
Photo with caption: Gravel bar in the Trinity River, California.
Assessing Gravel Bars' Habitat Complexity and Ecological Functions:
Determining how restored gravel bars affect the aquatic ecosystem in the Trinity River, California
"The Trinity River Restoration Program (TRRP) has been at the forefront of efforts to restore coarse sediment supply and transport in regulated rivers, with the goal of recreating the instream geomorphological features lost due to sediment starvation by upstream dams."
Reclamation, 2000. TRRP Record of Decision.
Bulletin 2013-09: Gravel Bars (PDF, 381 kB)
Photo with caption: CS. Mark Nelson, Reclamation; Ken Eng, USGS; and Ben Holcomb, Utah Division of Water
Quality�taking samples at Currant Creek, Utah.
Assessing the Ecological Costs of Streamflow Regulation:
Measuring the biological health of ecosystems in streams with altered flows
"Our study yielded quantitative relations between the severity of streamflow alteration and the degree of biological impairment and suggests that water management that reduces streamflows during winter months is likely to have negative effects on downstream benthic communities in Utah mountain streams."
Carlisle, D.M., S.M. Nelson, K. Eng. "Macroinvertebrate Community Condition Associated With the Severity of Streamflow Alteration." River Research and Applications, 2012.
Bulletin 2013-08: Ecological Costs (PDF, 479 kB)
Photo with caption: Elwha Science Symposium in 2012. Photo by Barb Maynes from Olympic National Park, Washington.
Elwha Science Symposium Event--Online and In Person:
Getting scientists and the public together on the science of dam removal as part of river and reservoir restoration
"This conference allowed scientists and the public to share information that will help shape the future of Elwha River research. The online forum was efficient and easy to use and was a huge time saver."
David S. Parks, M.S. Geologist/Wetland Scientist, Forest Practices Division, Washington Department of Natural Resources
Bulletin 2013-07: 2012 Elwha Symposium (PDF, 400 kB)
Photo with caption: Using PIT tags on floating antenna on the San Juan River, New Mexico.
Now Available: New Antenna System to Detect Tagged Fish:
New antenna system detects tagged fish in waterways while floating over them
"This product exists because of the early stage funding provided by your projects as well as the hard work and creativity of the people involved. We have figured out how to manufacture the antenna efficiently and with robust quality. Now we need to thoroughly test the product in the river."
Dean Park, President, Biomark, Inc.
"This provides another example of how we are able to achieve the transfer of Federally funded technologies into usable products without patents, licenses, or royalties."
Chuck Hennig, Deputy Director, Research and Development Office, Reclamation
Bulletin 2013-06: Detecting Tagged Fish (PDF, 277 kB)
Photo of employee measuring Expeditionary Unit Water Purification (EUWP) concentrate.
Variable Salinity Source Water Desalination:
Developing flexible desalination systems design for both brackish and seawater desalination
"This project exemplifies the practical value of partnering to advance desalination research. This project was made possible through the creative leveraging of efforts and resources of at least six different organizations."
Jorge Arroyo, Director, Texas Water Development Board, Innovative Water Technologies
Bulletin 2013-05: Using Different Source Waters (PDF, 214 kB)
Photo with caption: Building saline wetlands at the administrative building in Oxnard, California.
Saline Treatment for Salt Marsh Coastal Wetlands:
Using wetlands to treat concentrate from desalination processes
"The Oxnard demonstration wetland is a unique facility for research into wetland treatment processes. Once the initial concept is proven, the demonstration wetland will remain available to support additional research into the future. Oxnard's saline treatment wetland is a worthwhile concept that could provide a dependable supply of brackish water to support coastal wetland habitats in Ventura County, California."
Doug McPherson, Environmental Protection Specialist, Reclamation
Bulletin 2013-04: Treating Concentrate along the Coast (PDF, 360 kB)
Photo with caption: Schematic of ZDD process, which treats concentrates again to remove salts and reduce the
volume of remaining concentrate.
Zero Liquid Discharge Processes for Desalination:
Getting more pure water and reducing the amount of saline concentrate in a new desalination process
"With this system, a small inland community can keep three-quarters of the water wasted by current desalination technology and address concentrate disposal issues. Reclamation will make a significant step forward for inland concentrate disposal and inland desalination systems, if this technology becomes commercially viable."
Michelle Chapman, Physical Scientist, Reclamation
Bulletin 2012-03: Zero Discharge Desalination (PDF, 205 kB)
Photo with caption: Bins held wetlands in the pilot-scale project.
Treating Concentrate in Desert Wetlands:
An innovative, environmentally sustainable, cost-effective method to treat concentrate in an inland area
"This idea of managing concentrate through natural means is a complete shift in thinking from conventional concentrate management. Instead of using lots of energy and highly engineered systems, we can use natural means to process the concentrate, removing the harmful constituents and returning the benign salts back to nature, with the added bonus of water for the desert environment.."
Tom Poulson, Civil Engineer/Planner, Reclamation
Bulletin 2013-02: Treating Concentrate in Deserts (PDF, 252 kB)
Photo with caption: Temporary ?? ashboards help expand water storage in Llano, Texas, 2012. This impounded supply would last for 186 days.
Tool for Planning Temporary Water Supplies for Drought Emergencies:
Compendium of information and guidance to assist communities challenged by drought
"This work is an impressive effort. I see this tool as a foundational contribution that will evolve with use and time--which will in itself be a good measure of success."
Jorge Arroyo, Director, Texas Water Development Board, Innovative Water Technologies.
Bulletin 2013-01: Drought Planning Tool (PDF, 235 kB)

This information was last updated on May 2, 2013
Contact the Research and Development Office with questions or comments about this page