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Streamflow Measurements for the Nation


USGS 01645745 LITTLE DIFFICULT RUN NEAR VIENNA, VA
Fairfax County, Virginia
Hydrologic Unit Code 02070008
Latitude  38°54'35.8", Longitude  77°20'15.9" NAD83
Drainage area 2.99  square miles
Gage datum 245.5 feet above NAVD88
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)
432024-10-18 10:15:06EDTYesTJT/RAMUSGS0.3224.120.000.45PoorDebrisHeavyNONE1MainWADEQSCMMVADV0.329.102.350.14FIRMGRVLEVENSTDYUNEVUNKNDNST15.00
42S2022-12-22 23:00:30ESTYesJKLUSGS20528.09 Unknown NONE1MainunknQIDIR 205 unknunknunknunknunknUNKNunkn
41S2022-12-15 18:15:30ESTYesJKLUSGS84.026.45 Unknown NONE1MainunknQIDIR 84.0 unknunknunknunknunknUNKNunkn
412022-10-17 15:37:07EDTYesBWDUSGS0.4924.140.000.42FairDebrisModerateNONE1mainWADEQSCMMVADV0.498.703.490.14FIRMSANDEVENSTDYEVENUNKNUPST250.00
402022-07-01 10:23EDTYesBWD/HKCUSGS0.8024.140.000.38PoorClearNONE1mainWADEQSCMMVADV0.8010.08.980.09FIRMSANDEVENSTDYEVENUNKNUPST350.00
392022-03-04 09:45:44ESTYesBWD/HKCUSGS1.8624.290.000.50FairDebrisLightNONE1mainWADEQSCMMVADV1.8613.37.960.23FIRMSANDUNEVSTDYEVENSTNDUPST300.00
382020-11-17 08:48ESTYesTDCUSGS2.1624.410.000.50Good NONE1MainWADEQSCMMVADV2.169.503.650.59FIRMCBLSEVENSTDYEVENUNFMDNST5.00
372019-03-13 11:11EDTYesJMD/BWDUSGS5.2724.58-0.010.30FairClearNONE1mainWADEQSCMMVADV5.2713.55.590.94FIRMGRVLEVENSTDYUNEVUNKNDNST10.00
40S2018-11-24 01:15ESTYesJMDUSGS27928.29 Unknown NONE1MainunknQIDIR 279 unknunknunknunknunknUNKNunkn
39S2018-08-21 22:15EDTYesJMDUSGS22427.39 Unknown NONE1MainunknQIDIR 224 unknunknunknunknunknUNKNunkn
38S2018-08-01 03:45EDTYesJMDUSGS106030.69 Unknown NONE1MainunknQIDIR 1060 unknunknunknunknunknUNKNunkn
37S2018-07-21 22:00EDTYesJMDUSGS97329.94 Unknown NONE1MainunknQIDIR 973 unknunknunknunknunknUNKNunkn
0362018-06-18 15:57EDTYesDLM, JSWUSGS1.1424.400.000.50GoodClearNONE1MainWADEQSCMMVADV1.149.303.800.30FIRMGRVLUNEVSTDYEVENUNFMDNST10.00
36S2018-05-31 20:00EDTYesJMDUSGS17227.94 Unknown NONE1MainunknQIDIR 172 unknunknunknunknunknUNKNunkn
35S2018-05-19 04:00EDTYesJMDUSGS19527.20 Unknown NONE1MainunknQIDIR 195 unknunknunknunknunknUNKNunkn
352018-05-16 11:04EDTYesHDR/CNDUSGS2.8424.500.000.60FairDebrisLightNONE1mainWADEQSCMMVADV2.8412.74.900.58FIRMGRVLEVENSTDYEVENUNKNDNST10.00
34S2018-05-14 21:00EDTYesJMDUSGS15326.75 Unknown NONE1MainunknQIDIR 153 unknunknunknunknunknUNKNunkn
342018-04-16 11:19EDTYesJMD/TRDUSGS18.825.000.000.30FairDebrisLightNONE1mainWADEQSCMMVADV18.814.510.41.81UNSPUNSPUNSPUNSPEVENUNSPDNST10.00
332018-04-04 10:21EDTYesHDR/JMDUSGS1.7024.430.000.40GoodDebrisLightNONE1mainWADEQSCMMVADV1.7012.14.130.41FIRMGRVLEVENSTDYEVENUNKNDNST15.00
322017-10-25 14:16EDTNo
312016-06-09 10:46EDTYesAKMUSGS1.59 Good NONE1XSECTWADEQSCMMVADV1.599.303.370.47FIRMGRVLEVENunknEVENSTNDATGA
302016-03-22 15:14EDTYesBTCUSGS2.3624.44 Good NONE1XSECTWADEQSCMMVADV2.365.603.500.67UNSPUNSPUNSPunknUNSPUNSPDNST4.00
292016-03-07 14:01ESTYesBTCUSGS2.7624.44 Good NONE1XSECTWADEQSCMMVADV2.765.003.340.83FIRMSANDEVENunknEVENSTNDATGA
282015-06-12 08:31EDTYesJSWUSGS1.49 Good NONE1XSECTWADEQSCMMVADV1.4910.04.490.33FIRMsiltEVENunknEVENSTNDDNST5.00
272014-06-03 09:51EDTYesDLM RDRUSGS2.42 Good NONE1XSECTWADEQSCMMVADV2.4211.76.360.38FIRMGRVLEVENunknUNSPUNFMUNSP
262014-02-11 16:23:30ESTYesjsw ajpUSGS2.1824.40 Good NONE1XSECTWADEQSCMMVADV2.1810.84.520.48FIRMSANDEVENunknEVENUNFMDNST11.00
252013-05-02 13:30EDTYesJDJUSGS1.6624.36 Good NONE1XSECTWADEQSCMMVADV1.669.307.570.22FIRMCBLSEVENunknEVENUNFMUPST200.00
242012-04-04 17:24EDTYesDLMUSGS2.2024.370.000.50Good NONE1xsectWADEQSCMMVADV2.209.104.110.53FIRMGRVLEVENunknEVENUNSPUPST80.00
232012-01-12 08:20ESTYesCCR/KMDUSGS17.624.76-0.070.30Good NONE1MAINWADEQSCMMVADV17.612.212.81.37FIRMGRVLEVENunknEVENUNFMUPST100.00
222011-12-05 14:37ESTYesDLM,JKMUSGS1.9224.360.000.50Good NONE1channelWADEQSCMMVADV1.929.206.470.30FIRMGRVLEVENunknEVENUNSPUPST80.00
212011-11-04 08:23EDTYeskmd,nebUSGS2.1524.380.000.40GoodDebrisLightNONE1mainWADEQSCMMVADV2.159.005.630.38FIRMGRVLEVENunknEVENUNFMUPST60.00
202011-09-20 17:28EDTYesDLM,JKMUSGS1.5624.40 FairClearNONE1channelWADEQSCMMVADV1.5610.87.660.20FIRMGRVLEVENunknEVENUNFMUPST60.00
192011-09-14 11:39EDTYesDLM/KMDUSGS1.2424.360.000.60GoodClearNONE1Imported Channel 1WADEQSCMMVADV1.2410.46.430.19FIRMGRVLEVENunknEVENUNSPUNSP
18S2011-09-08 -- ----YesRRL/JMDUSGS296032.68 Unknown NONE1MainunknQIDIR 2960 unknunknunknunknunknUNKNunkn
18E2011-09-08 -- ----YesRRLUSGS645032.64 Poor NONE1Channel 1OTHRQIDIR 6450 UNSPUNSPUNSPunknUNSPUNSPUNSP
172011-08-30 11:00EDTYesKMD/WVDUSGS0.3824.280.000.30FairClearNONE1Imported Channel 1WADEQSCMMVADV0.389.105.300.07FIRMGRVLEVENunknEVENUNSPUNSP
162011-07-06 10:30EDTYesKMD/WVDUSGS0.4524.27-0.010.40PoorClearNONE1Imported Channel 1WADEQSCMMVADV0.457.402.000.22FIRMSANDEVENunknEVENUNSPUPST60.00
152011-04-21 13:20EDTYesRLY/KMDUSGS2.7824.440.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV2.787.505.460.51FIRMGRVLEVENunknEVENUNFMUPST60.00
142011-03-10 08:39:30ESTYesRLY/KMDUSGS21.224.870.030.30FairClearNONE1Imported Channel 1WADEQSCMMVADV21.217.010.32.06SOFTSANDEVENunknEVENUNKNDNST15.00
132011-01-18 12:50:30ESTYesRLY/KMDUSGS1.5424.380.000.50FairClearNONE1Imported Channel 1WADEQSCMMVADV1.5412.34.840.32FIRMGRVLEVENunknUNEVUNSPUNSP
122010-11-04 09:53EDTYesRLY/KMDUSGS6.7224.620.000.30FairDebrisLightNONE1Imported Channel 1WADEQSCMMVADV6.7215.57.500.90FIRMGRVLEVENunknUNEVNSTDUPST30.00
112010-09-09 10:57EDTYesRLY/KMDUSGS0.2024.250.000.30PoorDebrisLightNONE1Imported Channel 1WADEQSCMMVADV0.204.801.440.14FIRMGRVLEVENunknUNEVUNKNUPST3.00
102010-08-18 13:38EDTYesRLYUSGS34.225.180.000.30FairUnspecifedNONE1Imported Channel 1WADEQSCMMVADV34.218.017.71.93SOFTSANDUNEVunknUNEVUNSPDNST5.00
92010-07-16 09:04EDTYesKMD/MJBUSGS1.7424.370.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV1.748.604.310.40FIRMSANDEVENunknEVENUNSPUPST100.00
82010-05-19 09:55EDTYesRLY/KMDUSGS2.0824.360.000.40FairClearNONE1Imported Channel 1WADEQSCMMVADV2.088.506.240.33FIRMGRVLEVENunknEVENUNSPUPST100.00
72009-12-09 15:00ESTYesKMDUSGS21.624.84-0.040.30FairClearNONE1Imported Channel 1WADEQSCMMVADV21.614.320.51.05UNSPUNSPUNSPunknEVENUNSPUNSP
62009-11-10 11:22:30ESTYesRJA/KMDUSGS1.1024.360.000.40GoodDebrisModerateNONE1Imported Channel 1WADEQSCMMVADV1.109.804.800.23FIRMGRVLEVENunknEVENUNSPDNST100.00
52009-10-01 13:47EDTYesRJA/KMDUSGS0.5224.260.000.20FairDebrisLightNONE1Imported Channel 1WADEQSCMMVADV0.523.400.890.58UNSPUNSPUNSPunknUNSPUNSPUNSP
42009-06-09 13:15EDTYesRJA/RBBUSGS9.4424.620.000.10FairClearNONE1Imported Channel 1WADEQSCMMVADV9.4416.08.801.07FIRMGRVLEVENunknUNEVUNSPUPST2.00
32009-02-11 15:12:30ESTYesRJA/RRLUSGS1.5324.380.000.30FairUnspecifedNONE1Imported Channel 1WADEQSCMMVADV1.536.001.560.98FIRMsiltUNEVunknUNEVUNSPDNST50.00
22008-04-21 14:40EDTYesRRLUSGS19.925.000.000.20GoodUnspecifedNONE1Imported Channel 1WADEQSCMMVADV19.915.019.21.03UNSPUNSPUNSPunknUNSPUNSPUNSP
12008-04-01 12:07EDTYesRJA/RRLUSGS1.8424.470.000.30GoodClearNONE1Imported Channel 1WADEQSCMMVADV1.8414.53.350.55UNSPUNSPUNSPunknUNSPUNSPUNSP