PROVISIONAL DATA SUBJECT TO REVISION

Station operated in cooperation with the cities of Portland, Gresham, and Milwaukie,
the counties of Clackamas and Multnomah, and the U.S. Geological Survey.

STATION.--14211550  JOHNSON CREEK AT MILWAUKIE, OR

LOCATION.--Lat 45° 27'11", long 122° 38'31", in NE 1/4 SE 1/4 sec.26, T.1 S., R.1 E.,
Clackamas County, Hydrologic Unit 17090012, on the right bank upstream side of 
the Milport Road bridge, in the city limits of Milwaukie, and at mile 0.7. [location map]    
DRAINAGE AREA.--51.8 mi2.
PERIOD OF RECORD.--April 1989 to current year. 
GAGE.--Water-stage recorder and crest-stage gage.  Datum of gage is NGVD of 1929,  from State of Oregon. 
REMARKS.--Small diversions for irrigation upstream from station. Significant portion of 
summer flow is from Crystal Springs, through Crystal Springs Creek, which enters 0.5 mi 
upstream from gage. 
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge,2,170 ft3/s Feb. 8, 1996, gage height 
30.27 ft; minimum discharge, 10 ft3/s July 1, 3-5, 1994.
FORECAST.--Additional data for this gage and others in the Willamette basin can be 
found at the National Weather Service homepage.

Link to the Johnson Creek Basin Project Page

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.