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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 103365915 GRASS LAKE CK TRIB W ABV HWY 89, CA
El Dorado County, California
Hydrologic Unit Code 16050101
Latitude  38°47'49", Longitude 119°58'57" NAD27
Gage datum 7,640 feet above NGVD29
Output formats
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Meas.
Number		   Date       Time Time
Datum		 Measurement
Used?		   Who Measuring
Agency		 Stream
flow
(ft3/s)		 Gage
Height
(ft)		 GH
Change
(ft)		 Meas.
Duration
(hr)		 Meas.
Rated		   Control Flow
Adjust.
Code 		 Channel
Number		 Channel
Name		 Meas.
type 		 Stream
flow
method 		 Velocity
method 		 Channel
flow
(ft3/s)		 Channel
width
(ft)		 Channel
area
(ft2)		 Channel
vel.
(ft/s)		 Channel
stability 		 Channel
material 		 Channel
evenness 		 Long.
vel.
desc. 		 Horz.
vel.
desc. 		 Vert.
vel.
desc. 		 Channel
loc.
code 		 Channel
loc.
dist.(ft)
52000-10-26 12:27PDTYestgrUSGS0.01 Poor NONE1Imported Channel 1WADEunspeunkno0.010.500.020.26UNSPUNSPUNSPunknUNSPUNSPUNSP
41999-10-13 10:45PDTYestgr/rlpUSGS0.03 PoorClearNONE1Imported Channel 1WADEunspeunkno0.030.900.100.30UNSPUNSPUNSPunknUNSPUNSPUNSP
31998-10-19 13:00PDTYestgrUSGS0.06 Poor NONE1Imported Channel 1WADEunspeunkno0.061.000.100.64UNSPUNSPUNSPunknUNSPUNSPUNSP
21997-10-07 15:20PDTYesRWUSGS0.12 0.000.20PoorClearNONE1Imported Channel 1WADEunspeunkno0.123.000.510.24UNSPUNSPUNSPunknUNSPUNSPUNSP
11996-09-23 15:00PDTYesCETUSGS0.07 0.000.30PoorClearNONE1Imported Channel 1WADEunspeunkno0.071.100.110.60UNSPUNSPUNSPunknUNSPUNSPUNSP