North Coast Basin – Streamflow, River Stage & Tide Gages

About the North Coast Basin

Oregon’s North Coast basin includes the short, rain-fed rivers that drain the Coast Range directly to the Pacific. The Oregon Water Resources Department’s North Coast Basin runs from the Columbia River estuary at Astoria south to Neskowin, and includes the Necanicum, Nehalem, Tillamook Bay (Miami, Kilchis, Wilson, Trask and Tillamook) and Nestucca watersheds, plus the Oregon tributaries of the lower Columbia such as the Youngs, Lewis and Clark and Clatskanie rivers. River Flow Planner covers 15 active USGS and OWRD gages here, from small headwater creeks to the Nehalem River near Foss (record since 1939) and the Wilson River near Tillamook (record since 1914). The Wilson River at Sollie Smith Bridge gage reports river stage (gage height) only. It also covers 22 NOAA tide stations on the Columbia River estuary and in Nehalem, Tillamook, Netarts and Nestucca bays: three measure water levels (Astoria, Wauna and Garibaldi), and the other 19 are NOAA tide prediction stations.

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, irrigation and in-stream work:

• Summary hydrograph of typical flows or lake levels through the year
• Percent of time flows fall within a range you choose
• Likely range of flows 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, the highest and lowest tides of the next 5 years, and, at measured stations, how often the tide reaches levels you choose

Necanicum River

Ecola Creek

Nehalem River

Miami River

Wilson River

Trask River

Nestucca River

Tide Stations (NOAA)

Listed north to south, from the Columbia River estuary to Nestucca Bay. 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 · Mid Coast Basin · Umpqua River 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