Images

USGS scientist, wearing a personal protection device, or PFD, surveys water levels and debris line on the Clackamas River, Milo McIver park boat ramp. These measurements are used to validate a 2D hydraulic model of the Clackamas River.

USGS scientist, wearing a personal protection device, or PFD, surveys water levels and debris line on the Clackamas River, Milo McIver park boat ramp. These measurements are used to validate a 2D hydraulic model of the Clackamas River.

Field technicians braved the flooded park to collect critical streamflow measurements nearby. The Luckiamute River Near Suver, OR (# 14190500) is operated in cooperation with the US Army Corps of Engineers and is a USGS Federal Priority Streamgage.

In December 2025 USGS field crews captured photos of Clackamas River flooding at Barton Park while surveying the scale of the flood.

High-flows on the Clackamas River seen from the Carver Bridge, in Carver Oregon.

Hydrologic technicians installing temporary orifice line in the stream to restore stage readings during a rising flood. 

Rising waters near the USGS streamflow gage along Hood River.

A skilled hydrologic technician measures high flows from a cable car over the Nehalem River near Foss, OR.

The concrete gage house on the Nehalem River near Foss, OR. This site (# 14301000) is a USGS Federal Priority streamgage. 

A highly skilled hydrologic technician measures high flows from a cable way over the Nehalem River near Foss, OR.

A hydrologic technician measures the Breitenbush River below Breitenbush Hot Springs, OR, (# 14178610).

This high flow measurement on the Deschutes River near Culver, OR was the highest measurement since 2017. This site (# 14076500) is operated in cooperation with Portland General Electric.

A highly skilled hydrologic technician maintains monitoring equipment in the Columbia River at Vancouver, WA. They are climbing a structure called a "dolphin". In maritime terms, a dolphin is a cluster of pilings driven into the riverbed, often used for mooring or as a base for a light or sign. This dolphin also secures USGS equipment critical for flow monitoring.

Green Peter Reservoir drawn down to a free-flowing stream channel winding through muddy sediment.

A highly skilled hydrologic technician takes a flow measurement by kayaking an Acoustic Doppler Current Profilier (ADCP) across the channel. The ADCP uses sound waves to measure water speed and depth, to calculate flow volumes.

This year’s USGS participation in the University of Oregon Hydrology Field Camp was another success, thanks to strong support from our Eugene Field Office. In this photo, students take notes during a demonstration of meteorological (MET) station equipment led by a USGS hydrologic technician.

This year’s USGS participation in the University of Oregon Hydrology Field Camp was another success, thanks to strong support from our Eugene Field Office. In this photo, students get a chance to examine commonly used fieldwork equipment.

Hydrologic technician during field work maintaining the Blue River Lake water-quality profiler. 

Hydrologic technicians during field work maintaining the Detroit Lake water-quality profiler. 

Hydrologic technicians survey the Willamette River at Portland’s streamflow gage datum. Every streamgage measures water levels (gage height) relative to a datum, a fixed elevation chosen to ensure consistent, long-term measurements.

The Tilikum Crossing, Bridge of the people, has a lighting system with 178 lights illuminating 40 bridge cables that span the bridge. The colorful lighting is synced with U.S.