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Streamflow Measurements for the Nation


USGS 10263775 BIG ROCK C WASH A SOUTHERN PACIFIC RR NR LLANO CA
Los Angeles County, California
Hydrologic Unit Code 18090206
Latitude  34°32'00", Longitude 117°50'41" NAD27
Drainage area 53.9  square miles
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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)
41992-03-12 09:50PSTYesJAUSGS12.2 Fair NONE1Imported Channel 1WADEunspeunkno12.29.504.962.46UNSPUNSPUNSPunknUNSPUNSPUNSP
31992-02-11 14:40PSTYesJAUSGS130 Poor NONE1Imported Channel 1WADEunspeunkno13047.027.64.71UNSPUNSPUNSPunknUNSPUNSPUNSP
21991-03-05 11:55PSTYesJAUSGS5.46 PoorClearNONE1Imported Channel 1WADEunspeunkno5.467.503.181.72UNSPUNSPUNSPunknUNSPUNSPUNSP
11991-03-02 11:35PSTYesJAUSGS1.69 PoorClearNONE1Imported Channel 1WADEunspeunkno1.6910.22.090.81UNSPUNSPUNSPunknUNSPUNSPUNSP