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Streamflow Measurements for the Nation


USGS 11162735 SAN MATEO C AB JUNCTION BOX A DAM1 NR HILLSBOROUGH
San Mateo County, California
Hydrologic Unit Code 18050004
Latitude  37°33'25.1", Longitude 122°25'05.7" NAD83
Drainage area 2.1  square miles
Gage datum 648.36 feet above NAVD88
Output formats
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HTML table without channel data
Tab-separated data with channel data
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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)
402025-08-07 14:47PDTYesMDAVAULT/JEVUSGS0.00 Unspecified NONE11OTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPATGA0.00
392025-07-03 15:14:39PDTYesAGUERRIEUSGS0.030.300.000.40PoorVegetationHeavyNONE1Channel 1WADEQSCMMVADV0.0310.82.540.01FIRMLDGEUNEVSTDYEVENSTNDDNST5.00
382025-05-28 15:16:51PDTYesMDAVAULTUSSG0.260.310.010.50PoorVegetationHeavyNONE11WADEQSCMMVADV0.2610.22.660.10FIRMLDGEEVENSTDYEVENSTNDDNST10.00
372025-04-24 11:14:03PDTYesMDAVAULTUSGS0.720.310.010.40FairVegetationModerateNONE11WADEQSCMMVADV0.7210.22.740.26FIRMLDGEEVENSTDYUNEVSTNDDNST10.00
362025-03-11 12:54:25PDTYesMDAVAULTUSGS1.280.350.010.60FairVegetationLightNONE11WADEQSCMMVADV1.2810.33.190.40FIRMLDGEEVENSTDYEVENSTNDDNST10.00
352025-02-10 11:06:31PSTYesTNAKAMURA/RBUSGS10.40.67-0.010.50GoodClearOTHR11WADEQSCMMVADV10.09.705.751.74FIRMLDGEEVENSTDYEVENSTNDDNST5.00
34D2025-02-04 17:30PSTYesTNAKAMURA/MDUSGS81.01.850.000.10Poor NONE11UNSPother 81.0 FIRMLDGEEVENSTDYEVENSTNDDNST20.00
34C2025-02-04 17:00PSTYesTNAKAMURA/MDUSGS72.91.740.000.10Poor NONE11UNSPother 72.9 FIRMLDGEEVENSTDYUNEVSTNDUPST20.00
34B2025-02-04 11:00PSTYesTNAKAMURA/MDUSGS57.71.600.000.10Poor NONE11UNSPother 57.7 FIRMLDGEEVENSTDYUNEVSTNDDNST20.00
34A2025-02-04 09:30PSTYesTNAKAMURA/MDUSGS50.71.470.000.10Poor NONE11UNSPother 50.7 FIRMLDGEEVENSTDYEVENSTNDDNST20.00
342025-01-06 11:26:21PSTYesTNAKAMURAUSGS2.810.420.000.40GoodVegetationLightNONE11WADEQSCMMVADV2.8110.13.900.72FIRMLDGEEVENSTDYEVENSTNDDNST5.00
33A2024-12-29 12:00PSTYesTNAKAMURA/MDUSGS27.91.040.000.10Poor NONE11UNSPother 27.9 FIRMLDGEEVENSTDYEVENSTNDDNST20.00
332024-12-03 13:04:59PSTYesMDAVAULTUSGS0.480.290.010.40FairVegetationModerateNONE11WADEQSCMMVADV0.4810.42.510.19FIRMLDGEEVENSTDYEVENSTNDDNST10.00
322024-10-24 12:00PDTYesTNAKAMURA/DMUSGS0.00 UnspecifiedNoFlowNONE11OTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPATGA0.00
312024-07-17 13:02:25PDTYesMDAVAULTUSGS0.030.260.010.50PoorVegetationHeavyNONE11WADEQSCMMVADV0.034.801.090.03FIRMLDGEEVENSTDYUNEVSTNDDNST10.00
302024-06-05 13:19:34PDTYesMDAVAULT/JEVUSGS0.350.350.000.70PoorVegetationModerateNONE11WADEQSCMMVADV0.3510.23.070.11FIRMLDGEEVENSTDYEVENSTNDDNST10.00
292024-04-23 12:38:51PDTYesMDAVAULTUSGS1.720.380.000.40GoodDebrisModerateNONE11WADEQSCMMVADV1.7210.13.410.50FIRMLDGEEVENSTDYEVENSTNDATGA0.00
282024-03-25 11:49:31PDTYesMDAVAULTUSGS3.380.440.000.60FairDebrisModerateNONE11WADEQSCMMVADV3.3810.34.080.83FIRMLDGEEVENSTDYEVENSTNDATGA0.00
272024-02-27 13:05:15PSTYesMDAVAULTUSGS5.460.520.000.30GoodClearNONE11WADEQSCMMVADV5.4610.24.931.11FIRMLDGEEVENSTDYEVENSTNDATGA0.00
262024-01-26 15:37:58PSTYesMDAVAULTUSGS11.50.710.000.40GoodClearNONE11WADEQSCMMVADV11.510.57.111.62FIRMLDGEEVENSTDYEVENSTNDDNST10.00
252023-12-22 12:24:09PSTYesMDAVAULTusgs0.540.390.000.50FairVegetationHeavyNONE11WADEQSCMMVADV0.5410.23.500.15FIRMLDGEEVENSTDYEVENSTNDDNST10.00
242023-10-12 15:45PDTYesTNAKAMURA/MDUSGS0.00 UnspecifiedNoFlowNONE11OTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPATGA0.00
232023-07-18 14:20:07PDTYesMDAVAULTUSGS0.050.290.000.50PoorVegetationHeavyNONE11WADEQSCMMVADV0.059.902.530.02FIRMLDGEEVENSTDYUNEVUNKNDNST10.00
222023-06-15 10:52PDTYesMDAVAULTUSGS0.250.340.000.60PoorVegetationHeavyNONE11WADEQSCMMVADV0.2510.13.050.08FIRMLDGEEVENSTDYUNEVSTNDDNST10.00
212023-05-11 14:24:57PDTYesMDAVAULT/LCAUSGS0.840.360.000.50FairVegetationLightNONE11WADEQSCMMVADV0.8410.43.300.26FIRMLDGEEVENSTDYEVENSTNDATGA0.00
202023-03-23 11:53:30PDTYesMDAVAULTUSGS32.51.14-0.010.60GoodClearNONE11WADEQSCMMVADCP32.510.413.82.36FIRMLDGEEVENSTDYUNSPSTNDATGA0.00
192023-03-01 14:57:40PSTYesMDAVAULTUSGS16.40.810.000.50FairClearNONE11WADEQSCMMVADV16.410.08.132.02FIRMLDGEEVENSTDYEVENSTNDDNST10.00
182023-01-25 13:13:10PSTYesMDAVAULTUSGS3.970.450.000.40FairClearNONE11WADEQSCMMVADV3.979.903.691.08FIRMLDGEEVENSTDYEVENSTNDATGA0.00
172022-12-29 09:53:18PSTYesMDAVAULTUSGS4.340.480.000.60FairDebrisLightNONE11WADEQSCMMVADV4.3410.76.610.66FIRMLDGEEVENSTDYEVENSTNDATGA0.00
162022-12-27 14:24:13PSTYesMDAVAULTUSGS22.80.96-0.030.40GoodClearNONE11WADEQSCMMVADV22.810.912.81.79FIRMLDGEEVENSTDYEVENSTNDATGA0.00
152022-12-13 12:32:17PSTYesMDAVAULTUSGS0.200.320.000.60FairDebrisModerateNONE11WADEQSCMMVADV0.2010.64.620.04FIRMLDGEEVENSTDYEVENSTNDATGA0.00
142022-10-19 11:43PDTYesMDAVAULT/BDCUSGS0.00 Unspecified NONE11OTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPATGA0.00
132022-07-21 12:02:15PDTYesMDAVAULTUSGS0.00 UnspecifiedNoFlowNONE11OTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPATGA0.00
122022-06-15 17:08:28PDTYesMDAVAULTUSGS0.050.210.000.20PoorDebrisHeavyNONE11WADEQSCMMVADV0.0511.04.290.01FIRMLDGEEVENSTDYEVENSTNDATGA0.00
112022-05-06 11:03:04PDTYesRCTHOMASUSGS0.210.240.000.40PoorDebrisLightNONE11WADEQSCMMVADV0.2110.22.540.08FIRMLDGEEVENSTDYEVENSTNDATGA0.00
102022-03-25 14:55:24PDTYesLCANNAR/RCTHUSGS0.290.230.000.60FairVegetationModerateNONE11WADEQSCMMVADV0.2910.62.180.13FIRMLDGEEVENSTDYEVENSTNDUNSP
92022-02-23 14:28:13PSTYesLCANNAR/SMULUSGS0.380.240.000.70FairVegetationLightNONE11WADEQSCMMVADV0.3811.12.320.16FIRMLDGEEVENSTDYEVENSTNDATGA0.00
8F2021-12-15 14:00PSTNo
7F2019-02-13 12:48PSTNo
6F2019-01-15 13:20PSTNo
5F2017-03-22 14:30PDTNo
4F2016-12-09 11:55PSTNo
3F2015-05-14 15:00PDTNo
2F2011-02-16 11:40PSTNo
1F2010-12-20 11:29PSTNo