Heather M Bragg
Science and Products
Willamette River Basin Dissolved Gas Monitoring Network
USGS total dissolved gas (TDG) data help guide spill and discharge management from dams operated along tributaries of the Willamette River.
Lower Columbia River Dissolved Gas Monitoring Network
USGS total dissolved gas (TDG) data help guide spill and discharge management from dams operated along the lower Columbia River.
North Santiam River Basin Study
The streamflow and water-quality conditions monitored by the USGS in the North Santiam River basin provide valuable information to water resource managers
Sediment transport, turbidity, and dissolved oxygen responses to annual streambed drawdowns for downstream fish passage in a flood control reservoir
Sediment transport, turbidity, and dissolved oxygen were evaluated during six consecutive water years (2013–2018) of drawdowns of a flood control reservoir in the upper Willamette Valley, Oregon, USA. The drawdowns were conducted to allow volitional passage of endangered juvenile chinook salmon through the dam's regulating outlets by lowering...
Schenk, Liam N.; Bragg, Heather M. Monitoring the effect of deep drawdowns of a flood control reservoir on sediment transport and dissolved oxygen, Fall Creek Lake, Oregon
Annual reservoir drawdowns at Fall Creek Lake, Oregon, have occurred for eight consecutive years from December 2012 to November 2019. The annual drawdowns are the result of the 2008 Biological Opinion of the US Army Corps of Engineers (USACE) Willamette Valley Project operations, which directed the USACE to carry out interim operational measures...
Schenk, Liam N.; Bragg, Heather M.