Christopher Curran is the Assistant Center Director for Hydrologic Data at the Pacific Islands Water Science Center in Honolulu Hawaiʻi.
Chris Curran started his USGS career as a Hydrologic Technician in 1997 in Ithaca, New York. In 2000, he transferred to the USGS Washington Water Science Center (WAWSC) in Tacoma, Washington where he worked as a Hydrologic Technician specializing in hydroacoustics. In 2007, Chris joined the WAWSC Studies Program as a Hydrologist and worked on a variety of surface-water and sediment studies. He became supervisor of the Watersheds and Fluvial Systems Section of WAWSC Studies in 2019. Chris joined the Pacific Islands Water Science Center as Assistant Center Director in 2021.
Chris earned BS degrees in Civil Engineering and Geology from Lehigh University in 1989, and a MS degree in Hydrogeology from Syracuse University in 1999. Chris also served as an Engineer Officer in the U.S. Army, 10th Mountain Division, and as a U.S. Peace Corps Volunteer in Malawi, Central Africa.
Science and Products
Assessment of Sediment Quality and Volume behind Enloe Dam
USGS science supporting the Elwha River Restoration Project
Sumas River Sediment Load
Elwha River Sediment Monitoring
Geomorphology & Sediment Transport
Sauk River Sediment
Field data for evaluation of the LISST-SL2, an in-stream particle-size analyzer, at selected rivers in Washington and Virginia, 2018-20
Suspended-Sediment Data for the Bogachiel and Calawah Rivers, WA for Water Years 2019-2021
Sediment chemistry and characteristics of samples collected in 2019 from the Similkameen River above Enloe Dam, Okanogan County, Washington (ver. 3.0, March 2022)
Suspended Sediment and Water Temperature Data in the Suiattle River and the Downey Creek Tributary, Washington for select time periods over 2013 - 2017
Oceanographic measurements collected in the Stillaguamish River Delta, Port Susan, Washington, USA from March 2014 to July 2015
Data in support of 5-year sediment budget and morphodynamic analysis of Elwha River following dam removals
Stage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019)
In-stream laser diffraction for measuring suspended sediment concentration and particle size distribution in rivers: Insights from field campaigns
Assessment of vulnerabilities and opportunities to restore marsh sediment supply at Nisqually River Delta, west-central Washington
Element concentrations and grain size of sediment from the Similkameen River above Enloe Dam (Enloe Reservoir) near Oroville, Washington, 2019
In 2019, the U.S. Geological Survey conducted a reconnaissance survey of concentrations of 41 trace elements present in bed sediment in the reservoir on the Similkameen River upstream from Enloe Dam, near Oroville, Washington. The Similkameen River drains a watershed containing highly mineralized geologic deposits with current (2019) and historical mining activity. Results of this survey indicated
Relative contributions of suspended sediment between the upper Suiattle River Basin and a non-glacial tributary, Washington, May 2016–September 2017
Field evaluation of the Sequoia Scientific LISST-ABS acoustic backscatter sediment sensor
Morphodynamic evolution following sediment release from the world’s largest dam removal
Sediment pulses can cause widespread, complex changes to rivers and coastal regions. Quantifying landscape response to sediment-supply changes is a long-standing problem in geomorphology, but the unanticipated nature of most sediment pulses rarely allows for detailed measurement of associated landscape processes and evolution. The intentional removal of two large dams on the Elwha River (Washingto
Sediment storage and transport in the Nooksack River basin, northwestern Washington, 2006–15
Water temperature in the Lower Quinault River, Olympic Peninsula, Washington, June 2016 - August 2017
Suspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16
Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Sediment load and distribution in the lower Skagit River, Skagit County, Washington
Science and Products
- Science
Assessment of Sediment Quality and Volume behind Enloe Dam
The Issue: The Enloe Dam, a 100-yr old structure on the Similkameen River in Washington State, has not produced hydropower since 1958 and options are being considered for potential removal of the dam. The concentrations of sediment contaminants (primarily trace elements from a long history of mining and smelting operations in the US and Canada) trapped by Enloe Dam are unknown and may be high...USGS science supporting the Elwha River Restoration Project
The Elwha River Restoration Project has reconnected the water, salmon, and sediment of a pristine river and coast of the Olympic Peninsula of Washington.Sumas River Sediment Load
The Issue: A large, clay-rich active landslide on the western flank of Sumas Mountain in Whatcom County, Washington, is a significant source of sediment to Swift Creek and the salmon-bearing Sumas River. The landslide contains naturally occurring serpentinite that weathers to chrysotile asbestos and elevated levels of metals. The asbestos load in water as well as deposits along the banks and flood...Elwha River Sediment Monitoring
The Issue: The Elwha River Restoration Project is the largest single restoration action planned for the Puget Sound region in the foreseeable future and is a high priority for the Puget Sound Partnership. Beginning in 2011, two large dams on the Elwha River in Clallam County, Washington, will be removed by the National Park Service over about two and a half years. During removal, sediment...Geomorphology & Sediment Transport
Geomorphology is the study of the formation and evolution of landforms on Earth's surface. In the Pacific Northwest, volcanoes, tectonic movement, glaciers, rain, snow, wind, vegetation, animals, and people all shape the landscape at different scales of time and space. Of particular interest in the region is the form and processes of rivers, a branch of the science termed fluvial geomorphology...Sauk River Sediment
Fine-grained sediments in the lower reach of the Sauk River are adversely affecting the health and spawning of Chinook salmon. Climate change and forestry practices have been proposed as suspected causes of a reported increase in sediment loading to the river. To determine the amount and timing of suspended-sediment loading to the river and possible connections to adverse effects on Chinook salmon... - Data
Field data for evaluation of the LISST-SL2, an in-stream particle-size analyzer, at selected rivers in Washington and Virginia, 2018-20
Measurements of suspended-sediment concentration and particle-size distribution were made in selected rivers located in Washington and Virginia with an in-stream, particle-size analyzer that uses laser-diffraction methods to measure the concentration and size of suspended particles. Measurements were made in 11 rivers from 2018 to 2019 using the LIST-SL2, a second-generation streamlined sensor thaSuspended-Sediment Data for the Bogachiel and Calawah Rivers, WA for Water Years 2019-2021
This data release summarizes suspended sediment monitoring results on the Bogachiel (USGS 12042800) and Calawah (USGS 12043000) Rivers between water years 2019 and 2021, based on a combination of continuous turbidity monitoring and discrete suspended-sediment concentration (SSC) measurements. Data and results for each monitoring station were combined into zip files. Each zip file contains: SummSediment chemistry and characteristics of samples collected in 2019 from the Similkameen River above Enloe Dam, Okanogan County, Washington (ver. 3.0, March 2022)
This data release provides information on the chemistry and character of bed sediments accumulated in the 1.6-mile long impoundment behind Enloe Dam on the Similkameen River in Okanogan County, WA. Sediment samples were collected during four weeks in October – December 2019. The sampling locations were distributed among 10 transects that ranged from 0.1-0.2 miles apart along the length of the reseSuspended Sediment and Water Temperature Data in the Suiattle River and the Downey Creek Tributary, Washington for select time periods over 2013 - 2017
This data release provides suspended-sediment (concentration and load) and water temperature data for two locations along the Suiattle River (USGS 1217900 and 12188380) and a tributary, Downey Creek (USGS 1217985) in Washington State for partial periods over 2013-2017. Suspended-sediment and water temperature data were collected over two summer seasons from May through September 2016 and 2017 at UOceanographic measurements collected in the Stillaguamish River Delta, Port Susan, Washington, USA from March 2014 to July 2015
This data release includes time-series and discrete measurements made within two breaches constructed in a former flood-control levee of a restored agricultural area in Port Susan, Washington. An area of approximately 61 ha near the mouth of the Stillaguamish River was reconnected to tidal flow via levee breaches as part of a larger restoration effort that took place in 2012. These observations weData in support of 5-year sediment budget and morphodynamic analysis of Elwha River following dam removals
Two large dams were removed from the Elwha River in Washington, starting in 2011 and ending in 2014. The Elwha and the Glines Canyon dams were located approximately 7 km and 20 km upstream, respectively, from the Elwha River's mouth on the Strait of Juan de Fuca. The dams trapped over 20 million cubic meters of sediment. Dam removal changed the river's sediment budget and water flow, which affecteStage, water velocity and water quality data collected in the Lower Nisqually River, McAllister Creek and tidal channels of the Nisqually River Delta, Thurston County, Washington, February 11, 2016 to September 18, 2017 (ver. 1.1, December, 2019)
This data release includes time series data of stage, water velocity and water quality parameters at multiple locations in the tidally-influenced reaches of the Nisqually River and McAllister Creek, and tidal channels of the Nisqually River Delta. In total, time series data were collected at multiple sites from February 11, 2016 to March 19, 2018 during separate but generally overlapping periods o - Publications
Filter Total Items: 26
In-stream laser diffraction for measuring suspended sediment concentration and particle size distribution in rivers: Insights from field campaigns
This study evaluates the laser in situ scattering and transmissometry (LISST) instrument LISST-SL2, a laser diffraction instrument for suspended sediment sampling in rivers, with concurrent physical measurements of suspended sediment concentration (SSC) and particle size distribution (PSD) as well as velocity measurements by an acoustic Doppler current profiler (ADCP). We collected 136 LISST-SL2 sAssessment of vulnerabilities and opportunities to restore marsh sediment supply at Nisqually River Delta, west-central Washington
A cascading set of hazards to coastal environments is intimately tied to sediment transport and includes the flooding and erosion of shorelines and habitats that support communities, industry, infrastructure, and ecosystem functions (for example, habitats critical to fisheries). This report summarizes modeling and measurement data used to evaluate the sediment budget of the Nisqually River Delta,Element concentrations and grain size of sediment from the Similkameen River above Enloe Dam (Enloe Reservoir) near Oroville, Washington, 2019
In 2019, the U.S. Geological Survey conducted a reconnaissance survey of concentrations of 41 trace elements present in bed sediment in the reservoir on the Similkameen River upstream from Enloe Dam, near Oroville, Washington. The Similkameen River drains a watershed containing highly mineralized geologic deposits with current (2019) and historical mining activity. Results of this survey indicated
Relative contributions of suspended sediment between the upper Suiattle River Basin and a non-glacial tributary, Washington, May 2016–September 2017
Concentrations of suspended sediment were measured in discrete samples and turbidity was continuously monitored at four U.S. Geological Survey streamgages in western Washington State, including one gage on the Sauk River; two gages on the Suiattle River, a tributary to the Sauk River; and one gage on Downey Creek, a tributary to the Suiattle River. The Suiattle River is a sediment-rich stream withField evaluation of the Sequoia Scientific LISST-ABS acoustic backscatter sediment sensor
Sequoia Scientific’s LISST-ABS is a submersible acoustic instrument that measures the acoustic backscatter sensor (ABS) concentration at a point within a river, stream, or creek. Compared to traditional physical methods for measuring suspended-sediment concentration (SSC), sediment surrogates like the LISST-ABS offer continuous data that can be calibrated with physical SSC samples. Data were colleMorphodynamic evolution following sediment release from the world’s largest dam removal
Sediment pulses can cause widespread, complex changes to rivers and coastal regions. Quantifying landscape response to sediment-supply changes is a long-standing problem in geomorphology, but the unanticipated nature of most sediment pulses rarely allows for detailed measurement of associated landscape processes and evolution. The intentional removal of two large dams on the Elwha River (Washingto
ByEcosystems Mission Area, Natural Hazards Mission Area, Water Resources Mission Area, Coastal and Marine Hazards and Resources Program, Fisheries Program (unpublished), Arizona Water Science Center, Pacific Coastal and Marine Science Center, Washington Water Science Center, Western Fisheries Research Center, Sediment Lab Suite and Carbon Analysis LaboratorySediment storage and transport in the Nooksack River basin, northwestern Washington, 2006–15
The Nooksack River is a dynamic gravel-bedded river in northwestern Washington, draining off Mount Baker and the North Cascades into Puget Sound. Working in cooperation with the Whatcom County Flood Control Zone District, the U.S. Geological Survey studied topographic, hydrologic, and climatic data for the Nooksack River basin to document recent changes in sediment storage, long-term bed elevationWater temperature in the Lower Quinault River, Olympic Peninsula, Washington, June 2016 - August 2017
The availability of cold-water refugia during summertime river-water temperature maximums is important for cold-water fish species including Endangered Species Act listed salmonids since water temperature influences metabolism, growth, and phenology. The U.S. Geological Survey monitored water temperature at 10 sites approximately evenly-spaced along the lower Quinault River on the Olympic PeninsulSuspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16
The Sauk River is a federally designated Wild and Scenic River that drains a relatively undisturbed landscape along the western slope of the North Cascade Mountain Range, Washington, which includes the glaciated volcano, Glacier Peak. Naturally high sediment loads characteristic of basins draining volcanoes like Glacier Peak make the Sauk River a dominant contributor of sediment to the downstreamSuspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Continuous records of discharge and turbidity at a U.S. Geological Survey (USGS) streamgage in the lower Stillaguamish River were paired with discrete measurements of suspended-sediment concentration (SSC) in order to estimate suspended-sediment loads over the water years 2014 and 2015. First, relations between turbidity and SSC were developed and used to translate the continuous turbidity recordSediment load and distribution in the lower Skagit River, Skagit County, Washington
The Skagit River delivers about 40 percent of all fluvial sediment that enters Puget Sound, influencing flood hazards in the Skagit lowlands, critically important estuarine habitat in the delta, and some of the most diverse and productive agriculture in western Washington. A total of 175 measurements of suspended-sediment load, made routinely from 1974 to 1993, and sporadically from 2006 to 2009,