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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 11313000 DELTA-MENDOTA CN A TRACY PP NR TRACY CA
Alameda County, California
Hydrologic Unit Code 18040003
Latitude  37°47'49", Longitude 121°35'03" NAD27
Output formats
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without 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)
762025-06-17 11:03:23PDTYesJRGRANTUSGS3460 FairClearNONE1MainBRDSQADCPVADCP346098.212602.74FIRMLDGEEVENSTDYEVENSTNDDNST750.00
752024-09-11 10:52:55PDTYesJRGRANT/AMITUSGS4120 GoodClearNONE1MainBRDSQADCPVADCP412010212603.27FIRMLDGEEVENSTDYEVENSTNDDNST750.00
742024-04-25 11:13:48PDTYesJRGRANTUSGS950 GoodClearNONE1MainBRDSQADCPVADCP95091.210800.88FIRMLDGEEVENSTDYEVENSTNDDNST750.00
732023-09-13 10:48:54PDTYesJRGRANTUSGS4180 FairClearNONE1MainBRDSQADCPVADCP418099.712803.26FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
722023-05-09 10:59:14PDTYesJRGRANTUSGS3620 GoodClearNONE1MainMBOTQADCPVADCP362010412702.86FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
712022-08-23 10:49:04PDTYesJRGRANTUSGS2570 GoodClearNONE1MainBRDSQADCPVADCP257010111802.18FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
702022-07-21 11:00:43PDTYesJRGRANT/KBARUSGS2610 FairClearNONE1MainBRDSQADCPVADCP261097.411502.27FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
692021-08-18 13:23:09PDTYesJRGRANTUSGS776 FairClearNONE1MainBRDSQADCPVADCP77698.810900.71FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
682021-08-03 10:52:33PDTYesJRGRANT/BROCUSGS794 GoodClearNONE1MainBRDSQADCPVADCP79495.310900.73FIRMLDGEEVENSTDYEVENSTNDDNST7500.00
672019-08-28 13:38:05PDTYesJDJUSGS4240 GoodClearNONE1mainBRDSQADCPVADCP424010313103.23FIRMLDGEEVENSTDYEVENUNFMDNST7500.00
662019-05-23 13:58:42PDTYesJDJUSGS2710 0.000.25GoodClearNONE1mainBRDSQADCPVADCP271010212302.19FIRMLDGEEVENSTDYEVENSTNDDNST10560.00
652018-09-06 13:49:28PDTYesJDJ / MAOUSGS2870 0.000.20GoodVegetationLightNONE1MainBRDSQADCPVADCP287010012302.33FIRMLDGEEVENSTDYUNEVSTNDATGA0.00
642018-09-06 11:14:34PDTYesJDJ / MAOUSGS4260 GoodVegetationLightNONE1MainBRDSQADCPVADCP426010313403.19FIRMLDGEEVENSTDYEVENSTNDATGA0.00
632017-08-22 11:17:17PDTYesMHWUSGS4400 Good NONE1MAINBRUSQSCMMunkno440010213603.24FIRMLDGEEVENunknEVENSTNDDNST26400.00
622017-06-14 10:29:14PDTYesMHWUSGS4490 Good NONE1MAINBRUSQSCMMunkno449010113203.40FIRMLDGEEVENunknEVENSTNDDNST26400.00
612016-08-17 11:16:51PDTYesMHWUSGS3380 Good NONE1MAINBRUSQSCMMVPAA338097.012102.78FIRMLDGEEVENunknEVENSTNDDNST26400.00
602016-06-01 11:05:33PDTYesMHWUSGS817 Good NONE1MAINBRUSQSCMMVPAA81795.011200.73FIRMLDGEEVENunknEVENNSTDDNST26400.00
592015-09-29 11:30:35PDTYesMHWUSGS811 Fair NONE1MAINBRUSQSCMMVPAA81195.011200.72FIRMLDGEEVENunknEVENNSTDDNST26400.00
582015-09-11 10:36:48PDTYesMHWUSGS1690 Good NONE1MAINBRUSQSCMMVPAA169095.511501.47FIRMLDGEEVENunknEVENSTNDDNST26400.00
572014-09-03 10:29:56PDTYesMHWUSGS790 1.50Fair NONE1MAINBRUSQSCMMVPAA79094.511200.71FIRMLDGEEVENunknEVENNSTDDNST26400.00
562014-02-26 10:01:51PSTYesMHW/LJFUSGS795 1.30Good NONE1MAINBRUSQSCMMVPAA79597.011500.69FIRMLDGEEVENunknEVENSTNDDNST26400.00
552013-09-06 14:46:30PDTYesNWS/LJFUSGS3460 2.00GoodUnspecifedNONE1MAINBRUSQSCMMVPAA346010313102.64FIRMLDGEEVENunknEVENNSTDDNST5280.00
542013-08-22 12:56:40PDTYesMHW/LJFUSGS4290 Good NONE1MAINBRUSQSCMMVPAA429010414303.01FIRMLDGEEVENunknEVENUNFMUPST26400.00
532012-07-12 10:09PDTYesMHW/LJFUSGS4340 1.50Good NONE1Channel 1BRUSQSCMMVPAA434010514003.10FIRMLDGEEVENunknEVENUNSPDNST26400.00
522012-06-05 10:02PDTYesMHW/LJFUSGS1660 Good NONE1Channel 1BRUSQSCMMVPAA166095.010901.52FIRMLDGEEVENunknEVENSTNDDNST26400.00
512011-09-01 11:38PDTYesMHW/LJFUSGS4250 1.40Unspecified NONE1Channel 1BRUSQSCMMVPAA425010513803.08FIRMUNSPEVENunknEVENSTNDDNST2630.00
502011-08-16 12:40PDTYesMHW/LJFUSGS4240 1.60Good NONE1Channel 1BRUSQSCMMVPAA424010313603.12FIRMUNSPEVENunknEVENUNSPDNST0.00
492010-08-24 11:39PDTYesdmsUSGS4020 1.30GoodClearNONE1Imported Channel 1BRUSQSCMMVPAA402010313602.96FIRMLDGEUNEVunknEVENUNSPUNSP
482009-10-22 11:17:30PDTYesdmsUSGS4060 2.10GoodUnspecifedNONE1Imported Channel 1BRUSQSCMMVPAA406010313802.94FIRMLDGEEVENunknEVENUNSPUNSP
472009-09-24 10:43PDTYesdmsUSGS4090 1.40GoodClearNONE1Imported Channel 1BRDSQSCMMVPAA409010313902.94FIRMLDGEEVENunknEVENUNSPUNSP
462009-07-31 10:30PDTYesdmsUSGS4090 GoodClearNONE1Imported Channel 1BRDSQSCMMVPAA409010413603.01FIRMLDGEEVENunknEVENUNSPUNSP
452008-09-03 11:26PDTYesdmsUSGS4470 GoodClearNONE1Imported Channel 1CRANunspeunkno447010514203.15UNSPUNSPUNSPunknUNSPUNSPUNSP
442008-08-12 10:00PDTYesdmsUSGS2730 GoodClearNONE1Imported Channel 1CRANunspeunkno273010112502.18UNSPUNSPUNSPunknUNSPUNSPUNSP
432007-09-21 10:30PDTYesdmsUSGS4270 Good NONE1Imported Channel 1CRANunspeunkno427010514003.05UNSPUNSPUNSPunknUNSPUNSPUNSP
422007-07-03 09:35PDTYesDMS/LJFUSGS4460 Fair NONE1Imported Channel 1CRANunspeunkno446010514003.19UNSPUNSPUNSPunknUNSPUNSPUNSP
412006-09-07 09:25PDTYesLJFUSGS4350 Good NONE1Imported Channel 1CRANunspeunkno435010513903.13UNSPUNSPUNSPunknUNSPUNSPUNSP
402006-07-12 09:35PDTYesLJF/CDNUSGS4420 Good NONE1Imported Channel 1CRANunspeunkno442010514003.16UNSPUNSPUNSPunknUNSPUNSPUNSP
392005-09-21 09:30PDTYesMHW/LJFUSGS4430 Good NONE1Imported Channel 1CRANunspeunkno443010514203.12UNSPUNSPUNSPunknUNSPUNSPUNSP
382005-07-08 08:50PDTYesMDG/LJFUSGS4500 Fair NONE1Imported Channel 1CRANunspeunkno450010514103.19UNSPUNSPUNSPunknUNSPUNSPUNSP
372004-07-22 09:12PDTYesLJF/MDGUSGS4330 Good NONE1Imported Channel 1CRANunspeunkno433010313603.18UNSPUNSPUNSPunknUNSPUNSPUNSP
362004-05-19 09:10PDTYesLJF/BTYUSGS977 Good NONE1Imported Channel 1CRANunspeunkno97796.511800.83UNSPUNSPUNSPunknUNSPUNSPUNSP
352003-07-29 08:35PDTYesLJF/MDGUSGS3570 Good NONE1Imported Channel 1CRANunspeunkno357010012902.00UNSPUNSPUNSPunknUNSPUNSPUNSP
342003-06-10 08:32PDTYesMDG/LJFUSGS4500 Good NONE1Imported Channel 1CRANunspeunkno450010614403.12UNSPUNSPUNSPunknUNSPUNSPUNSP
332002-09-11 09:36PDTYesMJJ/LJFUSGS4320 Good NONE1Imported Channel 1CRANunspeunkno432010213603.18UNSPUNSPUNSPunknUNSPUNSPUNSP
322002-05-29 08:45PDTYesLJF/BTYUSGS938 GoodClearNONE1Imported Channel 1CRANunspeunkno93893.010700.88UNSPUNSPUNSPunknUNSPUNSPUNSP
312001-08-30 08:20PDTYesLJF/DAHUSGS4140 Good NONE1Imported Channel 1CRANunspeunkno414010213403.09UNSPUNSPUNSPunknUNSPUNSPUNSP
302001-07-02 09:06PDTYesLJF/BTYUSGS3950 Good NONE1Imported Channel 1CRANunspeunkno395010213302.97UNSPUNSPUNSPunknUNSPUNSPUNSP
292000-06-06 10:30PDTYesMHW/LJFUSGS1630 GoodClearNONE1Imported Channel 1CRANunspeunkno163093.010601.54UNSPUNSPUNSPunknUNSPUNSPUNSP
282000-06-05 12:30PDTYesMHW/LJFUSGS1620 GoodClearNONE1Imported Channel 1CRANunspeunkno162095.011101.46UNSPUNSPUNSPunknUNSPUNSPUNSP
271999-12-15 10:00PSTYesMHW/LJFUSGS691 Good NONE1Imported Channel 1CRANunspeunkno69193.010300.67UNSPUNSPUNSPunknUNSPUNSPUNSP
261999-08-03 09:18PDTYesJRS/LJFUSGS4270 GoodClearNONE1Imported Channel 1CRANunspeunkno427010213503.16UNSPUNSPUNSPunknUNSPUNSPUNSP
251999-06-10 09:25PDTYesJRS/LJFUSGS2610 Good NONE1Imported Channel 1CRANunspeunkno261099.012302.12UNSPUNSPUNSPunknUNSPUNSPUNSP
241997-05-07 11:18PDTYesSWA/LJFUSGS696 Good NONE1Imported Channel 1CRANunspeunkno69693.010700.65UNSPUNSPUNSPunknUNSPUNSPUNSP
231997-05-07 09:15PDTYesSWA/LJFUSGS737 Good NONE1Imported Channel 1CRANunspeunkno73793.510700.69UNSPUNSPUNSPunknUNSPUNSPUNSP
221996-07-12 08:48PDTYesLJF/JLOUSGS4250 GoodClearNONE1Imported Channel 1CRANunspeunkno425010213203.22UNSPUNSPUNSPunknUNSPUNSPUNSP
211996-05-17 11:17PDTYesJLO/LJFUSGS748 GoodClearNONE1Imported Channel 1CRANunspeunkno74897.011800.63UNSPUNSPUNSPunknUNSPUNSPUNSP
201996-05-17 09:30PDTYesLJF/JLOUSGS771 GoodClearNONE1Imported Channel 1CRANunspeunkno77197.011800.65UNSPUNSPUNSPunknUNSPUNSPUNSP
191995-09-26 09:30PDTYesLJF/JLOUSGS4300 GoodClearNONE1Imported Channel 1CRANunspeunkno430010413403.21UNSPUNSPUNSPunknUNSPUNSPUNSP
181995-06-29 12:01PDTYesJLO/LJFUSGS4390 GoodClearNONE1Imported Channel 1CRANunspeunkno439010213603.23UNSPUNSPUNSPunknUNSPUNSPUNSP
171995-06-29 09:45PDTYesLJF/JLOUSGS4470 GoodClearNONE1Imported Channel 1CRANunspeunkno447010213603.29UNSPUNSPUNSPunknUNSPUNSPUNSP
161994-08-19 10:35PDTYesLJF/DMMUSGS2060 GoodClearNONE1Imported Channel 1CRANunspeunkno206094.511801.74UNSPUNSPUNSPunknUNSPUNSPUNSP
151993-10-27 11:00PDTYesLJF/DMMUSGS3960 GoodClearNONE1Imported Channel 1CRANunspeunkno396010113302.98UNSPUNSPUNSPunknUNSPUNSPUNSP
141993-09-21 10:10PDTYesBTY/LJFUSGS4200 GoodClearNONE1Imported Channel 1CRANunspeunkno420010514003.00UNSPUNSPUNSPunknUNSPUNSPUNSP
131992-09-24 10:00PDTYesBTY/RWMUSGS1750 Good NONE1Imported Channel 1CRANunspeunkno175095.911501.52UNSPUNSPUNSPunknUNSPUNSPUNSP
121992-07-30 14:18PDTYesBTYUSGS703 Good NONE1Imported Channel 1CRANunspeunkno70393.710700.66UNSPUNSPUNSPunknUNSPUNSPUNSP
111992-07-30 10:15PDTYesBTYUSGS703 Good NONE1Imported Channel 1CRANunspeunkno70393.510700.66UNSPUNSPUNSPunknUNSPUNSPUNSP
101991-10-03 09:11PDTYesBTYUSGS1560 Good NONE1Imported Channel 1CRANunspeunkno156095.511501.36UNSPUNSPUNSPunknUNSPUNSPUNSP
91991-09-25 10:32PDTYesBTYUSGS1510 UnspecifiedClearNONE1Imported Channel 1CRANunspeunkno151097.011601.30UNSPUNSPUNSPunknUNSPUNSPUNSP
81990-09-25 09:50PDTYesGAMUSGS3940 Good NONE1Imported Channel 1CRANunspeunkno394010013302.96UNSPUNSPUNSPunknUNSPUNSPUNSP
71990-06-26 08:50PDTYesGAMUSGS2530 Good NONE1Imported Channel 1CRANunspeunkno253097.012002.11UNSPUNSPUNSPunknUNSPUNSPUNSP
61989-08-25 08:55PDTYesGAMUSGS4370 Good NONE1Imported Channel 1CRANunspeunkno437010414403.03UNSPUNSPUNSPunknUNSPUNSPUNSP
51989-05-09 09:25PDTYesGAM/DNUUSGS1790 Good NONE1Imported Channel 1CRANunspeunkno179096.512001.49UNSPUNSPUNSPunknUNSPUNSPUNSP
41988-10-14 09:05PDTYesGAMUSGS4320 Good NONE1Imported Channel 1CRANunspeunkno432010413903.11UNSPUNSPUNSPunknUNSPUNSPUNSP
31987-08-27 09:10PDTYesSAPUSGS4590 Good NONE1Imported Channel 1CRANunspeunkno459010514103.26UNSPUNSPUNSPunknUNSPUNSPUNSP
21985-10-15 09:46PDTYesSAPUSGS3910 Good NONE1Imported Channel 1CRANunspeunkno391010013003.01UNSPUNSPUNSPunknUNSPUNSPUNSP
11984-07-09 09:35PDTYesGAMUSGS4610 Good NONE1Imported Channel 1CRANunspeunkno461010414003.29UNSPUNSPUNSPunknUNSPUNSPUNSP