Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information please see www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

USGS 14211820 COLUMBIA SLOUGH AT PORTLAND, OR

  Stream: Tidal stream Site

DESCRIPTION:
Latitude 45°38'21",   Longitude 122°45'43"   NAD27
Multnomah County, Oregon, Hydrologic Unit 17090012
Datum of gage: 1.53 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Daily Data
    Discharge, cubic feet per second  1988-10-14  2025-09-17  12613 
    Discharge, tidally filtered, cubic feet per second  2006-10-01  2025-09-16  5911 
 Daily Statistics 
    Discharge, cubic feet per second  1988-10-14  2022-10-20 11557 
    Discharge, tidally filtered, cubic feet per second  2006-10-01  2020-09-29 4859 
 Monthly Statistics 
    Discharge, cubic feet per second  1988-10  2022-10  
    Discharge, tidally filtered, cubic feet per second  2006-10  2020-09  
 Annual Statistics 
    Discharge, cubic feet per second  1989  2023  
    Discharge, tidally filtered, cubic feet per second  2007  2020  
 Peak streamflow 1990-01-28  2022-01-03  33 
 Field measurements 1988-08-04  2025-07-17  289 
 Water-Year Summary 2006  2022  17 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Oregon Water Science Center
Email questions about this site to Oregon Water Science Center Water-Data Inquiries