OREGON STATE UNIVERSITY

The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river.

Roaring Spring

 

Roaring Spring emerges from old lava flows high in the headwaters of the McKenzie River. Cold (4C), clear and abundant, this spring's flow is equal to 1% of the water in the Willamette River at Portland Harbor.

 

Will creating artificial (beaver) dams in incised channels in central Oregon help raise the water table and restore meadow grasses for grazing?

Structure for motion (SfM) survey of Jack Creek

Student Laura Hempel surveys Jack Creek in the Deschutes National Forest with a digital camera and painter's pole. The photos will be processed using a digital photogrammetry technique called "Structure from Motion," that creates a 3D model using photos taken from different angles.

Summer 2015 Survey Crew on Boulder Creek, Upper McKenzie River

The 2015 drought represents a unique opportunity to test fundamental hypotheses for how mountain streams respond to anticipated and dramatic changes in amount and timing of recharge. Survey Crew; Laura Hempel, Cara Walter, Sarah Lewis & Austin Hall at Boulder Creek, Upper McKenzie River, Oregon.

Measuring hyporheic flow in the Clackamas River

The Influence of Hyporheic Flow on River Temperature: River water emerging from naturally occurring gravel bars on a hot summer day may be as much as 2°C cooler than mainstem flow. We explored the potential thermal benefits of hyporheic exchange from proposed gravel augmentation on the Clackamas River, Oregon.

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Recent Publications

Submitted

C.E. Gombert; S.T. Lancaster; R.L. Flitcroft; G.E. Grant , Submitted , Processes Controlling Thermal Regimes of Secondary Channel Features in a Large, Gravel-bed River, Willamette River, Oregon, USA

In Press

R. Gaffney; T. Ohalloran; G. Grant; B. Serpa; S. Wheelock; M. Coppoletta; C. Tague; M. Staudacher; S. Tyler , In Press , Hydrologic Response to Forest Density Management in a Coniferous Mediterranean Forest: The Importance of Snow to Rain Transition, Drainage and Storage

2022

R.B. Hanson; S. Anenberg; B. Zaichik; G. Grant; G. Filippelli; L. Lyon; R. Pandya; M. Shimamoto , 2022 , Report to NSF on Accelerating Research and Impacts in GeoHealth
H.R. Dietterich; G.E. Grant; B. Fasth; J.J. Major; K.V. Cashman , 2022 , Does Lava Flow Like Water? Assessing Applications of Critical Flow Theory to Channelized Lava Flows
J. Bales; A. Bhaskar; G. Characklis; A. Flores; T. Gilmore; J. Gomez-Velez; G.E. Grant; A. Jefferson; S. Khan; S. Ledford; S. Loheide; G. Miller; A. Mishra; A. Nolin; J. VanBriesen; A. Ward; M. Zarnetske; M. Zimmer , 2022 , COVID-19 Impacts Highlight the Need for Holistic Evaluation of Research in the Hydrologic Sciences
C. Roques; D.E. Rupp; J. de Dreuzy; L. Longuevergne; E.R. Jachens; G.E. Grant; L. Aquilina; J. Selker , 2022 , Recession discharge from compartmentalized bedrock hillslopes
Watershed Processes Group
Forestry Sciences Laboratory
3200 SW Jefferson Way, Corvallis, OR  97331
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