Data

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Hills Creek Lake, a multi-purpose reservoir in western Oregon impounded by the 92-meter ([m]; 302-foot [ft]) tall Hills Creek Dam. Aerial photographs were acquired by the Civil Air Patrol (CAP) on December 20, 2023...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Cottage Grove Lake, a multi-purpose reservoir in western Oregon impounded by the 29-meter ([m]; 95-foot [ft]) tall Cottage Grove Dam. Aerial photographs were acquired by the Civil Air Patrol (CAP) in December 2023...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Dorena Lake, a multi-purpose reservoir in western Oregon impounded by the 44-meter ([m]; 144-foot [ft]) tall Dorena Dam. Aerial photographs were acquired by the Civil Air Patrol (CAP) in December 2023 when water...

The Willamette River Basin encompasses 31,000 square kilometers of western Oregon and consists of twelve major subbasins, each with hundreds of individual streams and unique hydrogeomorphic regimes and river corridor conditions. In conjunction with environmental DNA (eDNA) sample collection to support occupancy modeling of native freshwater mussels across the Willamette River Basin, bed...

Elevation-at-refusal (EAR) data were collected in May and September 2016 in conjunction with a comprehensive bed-elevation survey (White, 2025; methods described in White and others, 2025) to estimate the depth and total volume of sediment stored in a beaver pond along Fanno Creek, western Oregon. The EAR.csv file consists of points with xy coordinate and z elevation data. A stadia rod...

Base flow, the groundwater contribution to streamflow, is beneficial data for analysis of groundwater-flow systems. This data release includes base-flow estimates and streamflow data for 471 Oregon streamgage sites. Categories of data include: (1) site information, (2) water year estimates of base flow and streamflow, and (3) daily estimates of base flow. Water-year base-flow estimates...

This data release contains field and geochemical data, discharge measurements, and descriptive observations for 261 springs in eastern Oregon and northern Nevada. Data were collected during water years 2016–2023. The data release also includes quality assurance analyses and the results of a logistic model documented in the accompanying study report (Johnson, in review).

This dataset contains manually developed 50-, 100-, and 500-ft contours depicting shallow and deep potentiometric-surface maps for the Walla Walla River Basin aquifer system, Oregon and Washington. The potentiometric surfaces show altitude at the water-table throughout the region (shallow) and at which the water level would have risen in tightly-cased wells beneath the basin-fill...

The size and distribution of riverbed grain size plays a foundational role in river morphology and ecology. This study (White and others, 2025) quantifies submerged riverbed grain size at high resolution (1 square meter) across 260 kilometers of geomorphically diverse river corridors in the Santiam River Basin, Oregon, by pairing bathymetric lidar point-clouds collected in 2023 with...

The USGS Spatially Referenced Regression on Watershed attributes (SPARROW) model is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the supply, transport, and fate of contaminants in streams and surface-water impoundments (Schwarz and others, 2006). This data release includes a set of 20 regional...

This document describes a new equation for estimating suspended-sediment concentration (SSC) at a fixed point from turbidity values at continuous 15-minute intervals and daily suspended sediment load at USGS site Breitenbush River above French Creek near Detroit, Oregon. The methods described follow USGS guidance as referenced in USGS Techniques and Methods, Book 3, Chap. C2 (Edwards and...

This model archive summary describes the development and methods used to derive and compute a suspended-fines ( 0.0625 mm particle size) model at USGS site ID# 14211720, Willamette River at Portland. The suspended-fines equations will be used to create real-time estimates of concentration and load that will help science entities, managers, and others, monitor sediment transport in the...