Umpqua River Basin – Streamflow, Lake & Tide Gages

About the Umpqua River Basin

The Umpqua is the largest river system between the Columbia and the Klamath that rises in the Cascades and flows through the Coast Range to the Pacific. The North Umpqua drains the High Cascades around Diamond Lake and Mount Thielsen and is famous for summer steelhead fly fishing and whitewater; its upper river is regulated by PacifiCorp’s North Umpqua Hydroelectric Project. The South Umpqua and Cow Creek drain the lower, rain-fed western Cascades and Klamath Mountains, with high winter flows and very low summer flows; Galesville Dam regulates Cow Creek. The two forks meet at River Forks near Roseburg, and the mainstem Umpqua flows past Elkton and Scottsburg to Reedsport and Winchester Bay. River Flow Planner covers 38 gages here: USGS and OWRD streamflow gages from the Cascade headwaters to Elkton (the Umpqua River near Elkton record began in 1905), five PacifiCorp power canals, and the levels of Galesville Reservoir, Diamond Lake and Lemolo Lake. Three OWRD stations (Berry Creek, Deer Creek and Elk Creek near Drain) have published daily flow records only for past decades, though Douglas County still reports their current river stage; Little River at Peel now records river stage only; and three USGS gages began in 2024 or 2025, so their statistics describe those periods only. It also covers 3 NOAA tide prediction stations in the Umpqua River estuary.

What River Flow Planner shows for each gage

Each gage page turns the agency’s full daily record into planning tools for fishing, rafting, kayaking, swimming, boating, irrigation and in-stream work:

• Summary hydrograph of typical flows or lake levels through the year
• Percent of time flows or levels fall within a range you choose
• Likely range of flows or levels on future dates you pick
• How a recent period compares with normal, plus a year-by-year spaghetti plot
• Flood frequency statistics for USGS gages with peak-flow records
• CSV downloads and links to current real-time data and short-term forecasts
• For NOAA tide stations: a tide forecast chart and tide calendar for dates you pick, and the highest and lowest tides of the next 5 years

North Umpqua River

North Umpqua Tributaries

South Umpqua River

Cow Creek

South Umpqua Tributaries

Umpqua River & Lower Tributaries

Lake & Reservoir Levels

Canal Gages

Power canals of PacifiCorp’s North Umpqua Hydroelectric Project, gaged by USGS. Their flow is set by power operations.

Tide Stations (NOAA)

Listed north to south in the Umpqua River estuary. Tide heights are in feet above mean lower low water (MLLW) unless you choose another datum.

Other basins

Rogue River Basin · Klamath River Basin · Deschutes River Basin · North Coast Basin · Mid Coast Basin · South Coast Basin · Willamette River Basin · Sandy River Basin · Hood River Basin · John Day River Basin · Umatilla River Basin · Grande Ronde River Basin · Powder River Basin · Malheur River Basin · Owyhee River Basin · Malheur Lake Basin · Goose & Summer Lakes Basin