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Streamflow Measurements for the Nation


USGS 11526500 NF TRINITY R A HELENA CA


Trinity County, California
Hydrologic Unit Code 18010211
Latitude  40°46'55", Longitude 123°07'38" NAD27
Drainage area 151  square miles
Gage datum 1,460.00 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)
982019-09-30 11:10:15PDTYesBJL/JEF/KCSUSGS43.43.710.011.00Fair NONE1Main measurementWADEQSCMMVADV43.485.082.60.53FIRMGRVLEVENSTDYUNEVSTNDDNST2080.00
972019-08-12 15:10:52PDTYesBJL/CATUSGS58.73.780.000.85GoodClearNONE1NF Trinity RWADEQSCMMVADV58.793.474.20.79FIRMCBLSEVENSTDYEVENSTNDDNST2000.00
962019-07-09 09:40:53PDTYesBJL/CATUSGS1574.200.020.22GoodClearNONE1MainWADEQADCPVADCP15769.61750.90FIRMBLDREVENPULSEVENSTNDUPST80.00
952019-05-22 09:10:53PDTYesBJL/CATUSGS6815.540.000.25GoodClearNONE1North Fork Trinity MainWADEQADCPVADCP68195.92462.77FIRMGRVLEVENSTDYEVENUNFMDNST1000.00
942019-04-01 11:53:22PDTYesJEF/KCSUSGS9065.900.010.20GoodClearNONE1NF TrinityWADEQADCPVADCP90696.02853.18FIRMCBLSEVENSTDYEVENSTNDDNST1000.00
932018-10-31 08:35:01PDTYesBAPUSGS20.63.66 GoodVegetationModerateNONE1NF TRINITYWADEQSCMMVADV20.664.055.60.37FIRMBLDRUNEVSTDYEVENSTNDUPST75.00
922018-08-23 08:32:14PDTYesBAPUSGS18.63.61 FairVegetationLightNONE1NF TRINITYWADEQSCMMVADV18.663.954.70.34FIRMBLDREVENSTDYEVENSTNDUPST25.00
912018-06-25 11:19:50PDTYesBAPUSGS72.13.910.000.80GoodClearNONE1NF TRINITYWADEQSCMMVADV72.166.071.81.00FIRMBLDRUNEVSTDYEVENSTNDUPST50.00
902018-05-08 07:51:25PDTYesBAPUSGS3784.88 GoodScourControlChangedNONE1NF TRINITYWADEQADCPVADCP37874.71702.23FIRMBLDRUNEVSTDYEVENSTNDUPST100.00
892018-03-29 10:07:30PDTYesBAPUSGS5965.51 GoodClearNONE1NF TRINITYWADEQADCPVADCP59696.02232.68FIRMCBLSEVENSTDYEVENSTNDDNST2500.00
882017-11-01 09:55PDTYesBAPUSGS40.83.990.000.40FairClearNONE1NFWADEQSCMMVADV40.866.064.50.63FIRMBLDRUNEVSTDYEVENSTNDUPST100.00
872017-10-02 08:17:30PDTYesBAPUSGS32.83.960.000.50FairClearNONE1NF TRINITYWADEQSCMMVADV32.864.059.10.55FIRMBLDRUNEVSTDYEVENSTNDUPST50.00
862017-08-16 11:01:20PDTYesBAPUSGS51.44.030.000.25FairFillControlChangedNONE1NF TRINITYWADEQADCPVADCP51.429.342.61.21FIRMBLDRUNEVSTDYEVENSTNDDNST250.00
852017-07-17 08:55:27PDTYesBAPUSGS1264.260.010.25GoodClearNONE1NF TRINITY RWADEQADCPVADCP12673.21131.12FIRMCBLSEVENSTDYEVENSTNDDNST500.00
842017-06-01 12:20:53PDTYesJEF/EYSUSGS5175.330.000.20GoodClearNONE1NF TRINITYWADEQADCPVADCP51798.32122.44FIRMCBLSEVENSTDYEVENSTNDDNST1200.00
832017-05-16 09:15:23PDTYesBAP/EYSUSGS4885.320.000.25GoodClearNONE1NF TRINITY RWADEQADCPVADCP48894.12052.38FIRMBLDRUNEVSTDYEVENSTNDDNST500.00
822016-11-02 10:12:56PDTYesCAT/BAPUSGS7865.600.010.20FairClearNONE1NF TRINITY RMBOTQADCPVADCP78695.32333.37FIRMCBLSEVENunknEVENSTNDDNST2000.00
812016-10-18 08:58:15PDTYesCAT/TJRUSGS5034.990.000.30GoodClearNONE1NF TRINITY MAINWADEQADCPVADCP50386.82152.34FIRMCBLSEVENunknEVENSTNDDNST2000.00
802016-09-29 10:20:30PDTYesCAT/JEFUSGS18.03.440.000.60FairClearNONE1NF TRINITY RWADEQSCMMVADV18.093.063.60.28FIRMCBLSEVENunknEVENSTNDDNST2000.00
792016-08-29 10:46PDTYesCAT/JEFUSGS23.63.480.000.60FairClearNONE1NF TRINITYWADEQSCMMVADV23.693.063.30.37FIRMCBLSEVENunknEVENSTNDDNST2000.00
782016-07-11 10:24:30PDTYesCAT/PMMUSGS78.83.850.000.80FairClearNONE1MAINWADEQSCMMVADV78.892.01080.73FIRMCBLSUNEVunknEVENUNFMDNST2000.00
772016-06-09 09:19:30PDTYesCAT/JEFUSGS2654.470.021.00GoodClearNONE1N F TrinityWADEQSCMMVADV26593.01561.70FIRMCBLSEVENunknEVENSTNDDNST2000.00
762016-05-02 10:56:28PDTYesCAT/JEFUSGS3804.730.000.20GoodClearNONE1MAINWADEQADCPVADCP38079.32211.72FIRMCBLSEVENunknEVENSTNDDNST1970.00
752016-04-05 11:30:12PDTYesCAT/JEFUSGS7275.510.000.20GoodClearNONE1NF TRINITYWADEQADCPVADCP72794.72383.05FIRMCBLSEVENunknEVENSTNDDNST2000.00
742015-11-02 12:59PSTYesCATUSGS45.14.000.000.80FairDebrisModerateNONE1NF TRINITY RWADEQSCMMVADV45.193.070.90.64FIRMCBLSEVENunknEVENSTNDDNST2000.00
732015-09-15 08:41PDTYesCAT/TJRUSGS17.93.800.000.70FairVegetationLightNONE1NF TRINITY RWADEQSCMMVADV17.987.081.40.22FIRMCBLSEVENunknEVENSTNDDNST1970.00
722015-07-23 10:01:32PDTYesCAT/BAPUSGS30.63.890.000.40FairClearNONE1NF TRINITY RWADEQADCPVADCP30.671.51270.24FIRMCBLSEVENunknEVENUNFMDNST880.00
712015-06-10 08:01:41PDTYesCAT/JEFUSGS1424.340.010.20GoodDebrisHeavyNONE1NF TRINITY R HELENAWADEQADCPVADCP14271.21520.94FIRMBLDREVENunknEVENSTNDUPST50.00
702015-05-04 11:54:52PDTYesCAT/JEFUSGS1554.340.010.30GoodClearNONE1NF TRINITY R HELENAWADEQADCPVADCP15580.11660.94FIRMCBLSEVENunknEVENSTNDDNST1970.00
692015-03-31 13:20:30PDTYesCAT/JEFUSGS2304.600.010.70FairClearNONE1NF TRINITY RWADEQSCMMVADV23093.01511.52FIRMCBLSEVENunknEVENSTNDDNST2000.00
682015-03-31 12:30:16PDTYesCAT/JEFUSGS2454.600.010.30GoodClearNONE1NF TRINITY RWADEQADCPVADCP24575.81481.65FIRMCBLSEVENunknEVENSTNDUPST75.00
672014-11-03 13:02:30PSTYesTJRUSGS1504.020.010.80PoorClearNONE1NF TRINITYWADEQSCMMVADV15091.01261.19FIRMCBLSEVENunknEVENSTNDDNST2000.00
662014-10-17 09:48PDTYesCAT/JEFUSGS34.73.560.000.60PoorDebrisLightNONE1NF TRINITYWADEQSCMMVADV34.790.074.20.47FIRMCBLSEVENunknEVENSTNDDNST2090.00
652014-09-30 12:55:24PDTYesJEF/BAPUSGS26.53.490.000.50FairClearNONE1NF TRINITYWADEQSCMMVPYG26.593.068.40.39FIRMCBLSEVENunknEVENSTNDDNST2000.00
642014-08-20 10:08:49PDTYesCAT/JEFUSGS15.53.400.000.30PoorDebrisLightNONE1N.F. TRINITY R HELENAWADEQADCPVADCP15.568.41010.15FIRMCBLSEVENunknEVENUNFMDNST2090.00
632014-07-25 12:33PDTYesCAT/BWTUSGS25.93.460.000.60PoorClearNONE1NF TRINITY RIVERWADEQSCMMVADV25.988.072.60.36FIRMCBLSEVENunknEVENSTNDDNST2090.00
622014-07-17 08:34:29PDTYesCAT/BAPUSGS23.43.450.000.20PoorClearNONE1NF TRINITY RWADEQADCPVADCP23.464.01300.18FIRMBLDRUNEVunknEVENSTNDUPST150.00
612014-06-03 08:39:30PDTYesCAT/BAPUSGS95.73.820.010.60FairUnspecifedNONE1NF TRINITY RWADEQSCMMVADV95.793.094.71.01FIRMCBLSEVENunknEVENUNFMDNST2090.00
602014-04-21 10:26:18PDTYesCAT/JEFUSGS2304.300.000.20GoodClearNONE1NF TRINITY RIVERWADEQADCPVADCP23073.11651.40FIRMBLDRUNEVunknEVENSTNDUPST50.00
592014-04-10 10:31:17PDTYesCAT/BAPUSGS4594.900.000.20GoodClearNONE1NF TRINITY RWADEQADCPVADCP45981.71872.45FIRMBLDRUNEVunknUNEVNSTDUPST40.00
582014-04-01 11:20:09PDTYesCAT/TJRUSGS6535.34-0.01 GoodClearNONE1NF TRINITY R HELENAWADEQADCPVADCP65397.52013.25FIRMCBLSEVENunknEVENSTNDDNST2000.00
572013-11-01 11:50:30PDTYesBAPUSGS28.73.630.000.50PoorDebrisLightNONE1NFWADEQSCMMVADV28.746.045.40.63FIRMBLDRUNEVunknUNEVSTNDUPST25.00
562013-09-10 11:36PDTYesBAP/JJLUSGS22.43.490.010.60FairClearNONE1NORTH FORKWADEQSCMMVADV22.438.637.30.60FIRMBLDRUNEVunknEVENSTNDUPST25.00
552013-07-25 16:44:46PDTYesBAP/JJLUSGS30.73.620.000.20FairClearNONE1mainWADEQADCPVADCP30.779.81670.18FIRMBLDREVENunknEVENSTNDUPST100.00
542013-06-12 14:12:02PDTYesJJL/TJRUSGS1393.92 FairClearNONE1MAINWADEQADCPVADCP13970.81400.99FIRMBLDREVENunknUNEVSTNDUPST100.00
532013-05-07 12:05:57PDTYesBAP/JJLUSGS4444.880.010.20GoodClearNONE1MAINWADEQADCPVADCP44472.11572.82FIRMBLDREVENunknEVENSTNDATGA
522013-03-27 14:17PDTYesBAP/JJLUSGS3874.760.000.20FairClearNONE1MAINWADEQADCPVADCP38773.01542.52FIRMBLDREVENunknEVENSTNDATGA
512012-11-02 08:47:30PDTYesJEFUSGS90.83.550.000.40FairClearNONE1NORTH FORKWADEQSCMMVADV90.893.091.21.00FIRMCBLSEVENunknEVENSTNDDNST2000.00
502012-10-05 10:26PDTYesJEFUSGS23.72.970.000.70PoorClearNONE1NORTH FORKWADEQSCMMVADV23.758.061.30.39FIRMCBLSEVENunknEVENUNFMUPST30.00
492012-08-14 09:03PDTYesJEF/CATUSGS39.63.140.000.60GoodClearNONE1NORTH FORKWADEQSCMMVADV39.660.068.60.58FIRMCBLSEVENunknEVENUNFMUPST25.00
482012-07-11 11:17:30PDTYesJEF/JJLUSGS1213.720.000.20GoodClearNONE1NORTH FORKWADEQADCPVADCP12169.41051.15FIRMCBLSUNEVunknEVENUNKNATGA
472012-06-06 08:42:30PDTYesJEF/CATUSGS2654.400.010.20GoodClearNONE1NORTH FORK TRINITYWADEQADCPVADCP26592.71561.70FIRMCBLSEVENunknEVENSTNDDNST2000.00
462012-05-03 11:06:30PDTYesJEF/JJLUSGS7505.580.010.20GoodClearNONE1N.F.TRINITYWADEQADCPVADCP75095.42383.15FIRMCBLSEVENunknEVENSTNDDNST2000.00
452012-03-26 12:22:30PDTYesJEF/JJLUSGS6735.430.020.20GoodClearNONE1NORTH FORKWADEQADCPVADCP67393.32233.02FIRMCBLSEVENunknEVENSTNDDNST2000.00
442010-11-01 15:17PDTYesTJRUSGS5135.06-0.020.20GoodClearNONE1nf mainWADEQADCPVADCP51394.91872.74FIRMGRVLEVENunknEVENUNSPDNST2112.00
432010-10-04 11:29:30PDTYesARGUSGS34.63.360.000.40FairDebrisLightNONE1NF TRINITYWADEQSCMMVADV34.690.067.40.51FIRMBLDREVENunknUNEVUNSPDNST2112.00
422010-09-08 08:26:30PDTYesARGUSGS38.73.390.000.40FairClearNONE1NF TRINITYWADEQSCMMVADV38.791.069.40.56FIRMBLDREVENunknUNEVUNSPDNST2112.00
412010-08-03 11:19PDTYesARG/JJLUSGS92.23.700.000.30FairClearNONE1NF TRINITYWADEQADCPVADCP92.257.01010.91FIRMBLDREVENunknUNEVUNSPUPST100.00
402010-06-28 08:53PDTYesARG/CAJUSGS5535.140.010.20GoodClearNONE1NF TRINITYWADEQADCPVADCP55398.51783.11FIRMBLDREVENunknEVENUNSPDNST2112.00
392010-05-19 10:23:30PDTYesARG/TAUSGS8395.600.010.30PoorClearNONE1NF TRINITYMBOTQADCPVADCP8391275051.66FIRMBLDRUNEVunknUNEVUNSPDNST5280.00
382010-05-04 11:02:30PDTYesARG/JEFUSGS10805.960.010.10PoorClearNONE1NF TRINITYMBOTQADCPVADCP10801188011.35FIRMBLDRUNEVunknUNEVUNSPDNST5280.00
372010-03-30 09:58PDTYesARG/JEFUSGS9605.910.000.10FairClearNONE1NF TRINITYMBOTQADCPVADCP96088.42923.29FIRMBLDREVENunknEVENUNSPUPST100.00
362009-11-02 08:21:30PSTYesARGUSGS40.53.400.000.40PoorDebrisLightNONE1NF TRINITYWADEQSCMMVADV40.587.057.70.70FIRMBLDREVENunknUNEVUNSPDNST2112.00
352009-10-09 08:39:30PDTYesARGUSGS25.43.270.000.40PoorDebrisLightNONE1NF TRINITYWADEQSCMMVADV25.484.047.80.53FIRMBLDREVENunknUNEVUNSPDNST2112.00
342009-09-09 08:29PDTYesARGUSGS22.73.280.010.30PoorDebrisLightNONE1NF TRINITYMBOTQADCPVADCP22.768.11760.13FIRMBLDREVENunknUNEVUNSPUPST100.00
332009-08-03 08:12PDTYesARGUSGS41.43.380.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV41.486.057.30.72FIRMBLDREVENunknUNEVUNSPDNST2112.00
322009-06-23 12:19:30PDTYesARG/CAJUSGS1283.910.000.20FairClearNONE1Imported Channel 1MBOTQADCPVADCP12894.41021.25FIRMGRVLEVENunknEVENUNSPDNST2112.00
312009-06-03 10:24PDTYesCAJ/ARGUSGS2984.540.010.10GoodClearNONE1Imported Channel 1MBOTQADCPVADCP29898.91372.18FIRMGRVLEVENunknEVENUNSPDNST2112.00
302009-05-05 10:09:30PDTYesJEF/ARGUSGS25207.840.010.20PoorClearNONE1Imported Channel 1MBOTQADCPVADCP25201526513.87FIRMBLDRUNEVunknUNEVUNSPDNST5280.00
292009-03-31 10:57PDTYesCAJ/RAGUSGS4795.030.000.10FairClearNONE1Imported Channel 1MBOTQADCPVADCP47997.81762.72FIRMGRVLEVENunknEVENUNSPDNST2112.00
282008-11-13 09:40PSTYesCAJ/RAGUSGS3224.570.000.10FairClearNONE1Imported Channel 1MBOTQADCPVADCP3221001631.98FIRMGRVLEVENunknEVENUNSPDNST2112.00
272008-10-02 07:34PDTYesRAGUSGS24.13.200.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV24.185.051.50.47FIRMGRVLEVENunknEVENUNSPDNST2640.00
262008-09-10 09:59PDTYesRAG/CAJUSGS25.73.220.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV25.785.053.40.48UNSPUNSPUNSPunknUNSPUNSPUNSP
252008-08-04 05:50PDTYesRAGUSGS44.13.300.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV44.186.057.50.77UNSPUNSPUNSPunknUNSPUNSPUNSP
242008-07-01 08:09PDTYesRAG/CAJUSGS1793.980.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV17998.01011.77UNSPUNSPUNSPunknUNSPUNSPUNSP
232008-06-10 08:21PDTYesRAGUSGS3804.67-0.030.60FairClearNONE1Imported Channel 1WADEQSCMMVADV38096.01542.47UNSPUNSPUNSPunknUNSPUNSPUNSP
222008-05-05 08:16PDTYesRAGUSGS6975.500.010.70FairClearNONE1Imported Channel 1WADEQSCMMVADV69795.02093.33UNSPUNSPUNSPunknUNSPUNSPUNSP
212008-04-03 09:40PDTYesCAJ/RAGUSGS4374.890.020.90FairClearNONE1Imported Channel 1WADEQSCMMVADV43795.01632.68UNSPUNSPUNSPunknUNSPUNSPUNSP
202007-11-02 10:28PDTYesCAJ/RAGUSGS83.83.590.000.80FairClearNONE1Imported Channel 1WADEQSCMMVADV83.863.091.10.92UNSPUNSPUNSPunknUNSPUNSPUNSP
192007-10-03 08:05PDTYesRAGUSGS30.23.210.000.50FairClearNONE1Imported Channel 1WADEQSCMMVADV30.255.056.40.54UNSPUNSPUNSPunknUNSPUNSPUNSP
182007-09-05 10:23PDTYesCAJ/JEFUSGS27.13.190.000.90FairClearNONE1Imported Channel 1WADEQSCMMVADV27.155.060.50.45UNSPUNSPUNSPunknUNSPUNSPUNSP
172007-08-01 12:56PDTYesCAJ/JEFUSGS38.63.270.000.60PoorClearNONE1Imported Channel 1WADEQSCMMVADV38.685.055.60.69UNSPUNSPUNSPunknUNSPUNSPUNSP
162007-07-02 12:45PDTYesJEFUSGS76.73.520.010.70FairClearNONE1Imported Channel 1WADEQSCMMVADV76.763.083.20.92UNSPUNSPUNSPunknUNSPUNSPUNSP
152007-06-01 11:52PDTYesJEFUSGS2374.230.000.40GoodClearNONE1Imported Channel 1WADEQSCMMVADV23798.01112.14UNSPUNSPUNSPunknUNSPUNSPUNSP
142007-04-11 09:54PDTYesCAJ/JEFUSGS3174.500.020.80GoodClearNONE1Imported Channel 1WADEQSCMMVADV31794.51412.25UNSPUNSPUNSPunknUNSPUNSPUNSP
132007-03-30 10:39PDTYesJEF/LAPUSGS3584.660.010.70GoodClearNONE1Imported Channel 1WADEQSCMMVADV35897.01372.61UNSPUNSPUNSPunknUNSPUNSPUNSP
122005-10-03 09:00PDTYesJEFUSGS36.83.000.000.40GoodClearNONE1Imported Channel 1WADEQSCMMVADV36.850.049.30.75UNSPUNSPUNSPunknUNSPUNSPUNSP
112005-09-06 09:10PDTYesJEFUSGS37.43.010.000.50GoodClearNONE1Imported Channel 1WADEQSCMMVADV37.455.049.50.76UNSPUNSPUNSPunknUNSPUNSPUNSP
102005-08-03 07:15PDTYesJEFUSGS80.33.370.000.50GoodClearNONE1Imported Channel 1WADEQSCMMVADV80.366.067.51.19UNSPUNSPUNSPunknUNSPUNSPUNSP
92005-06-28 10:00PDTYesJEFUSGS4004.64-0.010.40GoodClearNONE1Imported Channel 1WADEQSCMMVADV40097.01492.68UNSPUNSPUNSPunknUNSPUNSPUNSP
82005-05-04 07:55PDTYesLAPUSGS6275.120.000.70GoodClearNONE1Imported Channel 1WADEunspeunkno62794.02172.89UNSPUNSPUNSPunknUNSPUNSPUNSP
72005-04-14 09:00PDTYesLAPUSGS7015.290.010.80GoodClearNONE1Imported Channel 1WADEunspeunkno70194.02253.12UNSPUNSPUNSPunknUNSPUNSPUNSP
62005-03-03 07:55PSTYesLAPUSGS4544.700.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno45495.01912.38UNSPUNSPUNSPunknUNSPUNSPUNSP
52005-02-04 09:10PSTYesLAPUSGS5084.830.010.60GoodClearNONE1Imported Channel 1WADEunspeunkno50894.01982.57UNSPUNSPUNSPunknUNSPUNSPUNSP
42005-01-12 10:00PSTYesLAPUSGS2524.110.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno25294.01481.70UNSPUNSPUNSPunknUNSPUNSPUNSP
32004-12-07 13:15PSTYesLAPUSGS83.73.380.010.60GoodClearNONE1Imported Channel 1WADEunspeunkno83.792.094.70.88UNSPUNSPUNSPunknUNSPUNSPUNSP
22004-11-05 10:35PSTYesLAPUSGS84.43.370.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno84.492.095.30.89UNSPUNSPUNSPunknUNSPUNSPUNSP
12004-10-14 09:25PDTYesLAP/MFFUSGS24.02.880.000.50FairClearNONE1Imported Channel 1WADEunspeunkno24.085.069.30.35UNSPUNSPUNSPunknUNSPUNSPUNSP