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Streamflow Measurements for the Nation


USGS 08171400 San Marcos Rv nr Martindale, TX
Caldwell County, Texas
Hydrologic Unit Code 12100203
Latitude  29°49'56.23", Longitude  97°50'32.58" NAD83
Drainage area 547  square miles
Gage datum 486 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)
902024-03-04 10:56:57CSTYesAJLUSGS1557.570.010.70FairDebrisModerateNONE1MainWADEQSCMMVADV15565.097.21.60SOFTCBLSUNEVPULSUNEVNSTDUPST150.00
892024-01-18 11:01:32CSTYesAJLUSGS96.27.370.000.50FairClearNONE1MainWADEQSCMMVADV96.263.078.21.23FIRMCBLSUNEVPULSUNEVSTNDUPST100.00
882023-12-05 13:28:26CSTYesAJLUSGS87.27.330.000.60FairClearNONE1MainWADEQSCMMVADV87.264.077.21.13FIRMCBLSUNEVPULSUNEVNSTDUPST150.00
872023-10-10 10:54:17CDTYesAJLUSGS71.77.250.000.60FairClearNONE1MainWADEQSCMMVADV71.764.071.01.01FIRMCBLSUNEVPULSUNEVSTNDUPST150.00
862023-08-30 15:11:13CDTYesAJLUSGS67.87.210.000.70FairDebrisLightNONE1MainWADEQSCMMVADV67.862.571.20.95FIRMCBLSUNEVPULSUNEVSTNDUPST100.00
852023-07-31 10:23:22CDTYesAJLUSGS82.37.290.000.60FairVegetationLightNONE1MainWADEQSCMMVADV82.363.574.71.10FIRMCBLSUNEVPULSUNEVSTNDUPST100.00
842023-06-01 11:39:50CDTYesAJLUSGS1087.360.000.60FairClearNONE1MainWADEQSCMMVADV10864.077.71.39FIRMCBLSUNEVSTDYUNEVNSTDUPST100.00
832023-04-25 10:30:47CDTYesAJLUSGS95.37.300.000.60FairDebrisModerateNONE1MainWADEQSCMMVADV95.365.570.61.35FIRMCBLSUNEVPULSUNEVNSTDUPST30.00
822023-02-23 10:03:10CSTYesAJL/OSCUSGS87.07.420.001.00FairClearNONE1mainWADEQSCMMVADV87.064.572.71.20FIRMCBLSUNEVPULSUNEVSTNDUPST50.00
812023-01-05 10:56:38CSTYesAJLUSGS97.97.480.000.70FairClearNONE1MainWADEQSCMMVADV97.965.087.11.12FIRMCBLSUNEVPULSEVENSTNDUPST75.00
802022-11-18 12:56:25CSTYesAJLUSGS83.77.440.000.80FairDebrisHeavyNONE1MainWADEQSCMMVADV83.764.087.30.96FIRMCBLSUNEVPULSUNEVSTNDUPST30.00
792022-08-15 14:24:54CDTYesPWBUSGS93.37.450.000.50FairClearNONE1MainWADEQADCPVADCP93.368.91470.63FIRMCBLSUNEVSTDYEVENSTNDUPST250.00
782022-06-21 09:50:50CDTYesABMUSGS1127.450.000.20FairDebrisLightNONE1MainWADEQADCPVADCP11261.790.61.23FIRMCBLSUNEVSTDYUNEVSTNDUPST75.00
772022-04-20 10:17:42CDTYesABMUSGS1607.650.000.20FairDebrisModerateNONE1mainWADEQADCPVADCP16063.898.21.62FIRMGRVLUNEVSTDYUNEVSTNDUPST75.00
762022-03-08 10:12:07CSTYesABMUSGS1837.640.000.20FairDebrisLightNONE1mainWADEQADCPVADCP18364.492.81.97FIRMGRVLUNEVSTDYUNEVSTNDUPST75.00
752022-01-13 12:44:49CSTYesBLPUSGS1727.550.001.00FairClearNONE1MainWADEQADCPVADCP17267.01111.55FIRMGRVLEVENSTDYEVENUNFMUPST300.00
742021-11-22 12:53:39CSTYesBLPUSGS2187.640.000.50FairClearNONE1MainWADEQADCPVADCP21871.41361.60FIRMGRVLEVENSTDYEVENUNFMUPST300.00
732021-10-20 12:15:30CDTYesBLPUSGS3408.070.000.30FairScourControlChangedNONE1MainWADEQADCPVADCP34072.91652.06FIRMGRVLEVENSTDYEVENUNFMUPST300.00
722021-10-14 14:58:52CDTYesAJL/ABMUnspe807021.06 FairDebrisModerateNONE1MainBRDSQADCPVADCP807027924203.33SOFTSANDUNEVSTDYUNEVNSTDDNST300.00
712021-10-14 14:21:35CDTYesAJL/ABMUnspe977022.08 FairDebrisModerateNONE1MainBRDSQADCPVADCP977029926303.72SOFTSANDUNEVSTDYUNEVNSTDDNST300.00
702021-08-12 12:11:47CDTYesBLPUSGS1707.680.000.50FairClearNONE1MainWADEQADCPVADCP17066.097.41.74FIRMGRVLEVENSTDYEVENUNFMUPST150.00
692021-06-30 14:04:51CDTYesBLPUSGS1897.700.000.50FairDebrisModerateNONE1MainWADEQADCPVADCP18972.31311.45FIRMGRVLEVENSTDYEVENUNFMUPST150.00
682021-05-12 10:49:39CDTYesBLPUSGS1577.570.000.35FairClearNONE1MainWADEQADCPVADCP15767.71141.38FIRMGRVLEVENSTDYEVENUNFMUPST100.00
672021-03-24 11:15:31CDTYesBLPUSGS1227.430.001.00FairClearNONE1MainWADEQADCPVADCP12268.51151.06FIRMGRVLUNEVSTDYEVENUNFMUPST150.00
662021-01-07 13:56:26CSTYesBLPUSGS1347.490.000.50FairClearNONE1MainWADEQADCPVADCP13472.21301.03FIRMGRVLUNEVSTDYEVENUNFMUPST150.00
652020-11-16 16:47:10CSTYesBLPUSGS1287.480.001.00FairClearNONE1MainWADEQADCPVADCP12866.71111.15FIRMGRVLUNEVSTDYEVENUNFMUPST150.00
642020-10-08 14:31:25CDTYesBLPUSGS1457.540.001.00FairClearNONE1MainWADEQADCPVADCP14567.61111.30FIRMGRVLEVENSTDYEVENUNFMUPST300.00
632020-08-19 15:48:11CDTYesBLPUSGS1467.550.000.50FairClearNONE1MainWADEQADCPVADCP14670.61151.28FIRMGRVLUNEVSTDYEVENUNFMUPST200.00
622020-06-26 12:20:18CDTYesBLPUSGS1817.760.001.00FairClearNONE1MainWADEQADCPVADCP18162.198.71.84FIRMGRVLUNEVSTDYEVENUNFMUPST150.00
612020-04-29 17:21:52CDTYesBLPUSGS2007.700.001.00FairClearNONE1MainWADEQADCPVADCP20071.11321.52FIRMGRVLEVENSTDYEVENUNFMUPST200.00
602020-03-04 14:37:16CSTYesBLPUSGS1687.610.001.00FairClearNONE1MainWADEQADCPVADCP16863.61101.54FIRMGRVLEVENSTDYUNEVUNFMUPST150.00
592020-01-09 13:53:25CSTYesBLPUSGS1567.540.001.00FairClearNONE1MainWADEQADCPVADCP15667.71111.40FIRMGRVLUNEVSTDYUNEVUNFMUPST150.00
582019-10-23 11:26:01CDTYesBLPUSGS1767.900.001.00FairDebrisHeavyNONE1MainWADEQADCPVADCP17668.31261.40FIRMGRVLUNEVSTDYUNEVUNFMUPST100.00
572019-09-12 13:24:05CDTYesBLPUSGS1967.960.001.00FairDebrisHeavyNONE1MainWADEQADCPVADCP19670.51351.45FIRMGRVLEVENSTDYUNEVUNFMUPST150.00
562019-07-03 16:27:55CDTYesBLPUSGS3078.250.001.00FairClearNONE1MainWADEQADCPVADCP30764.91442.14FIRMCBLSUNEVSTDYUNEVUNFMUPST80.00
552019-05-09 14:01:59CDTYesBLPUSGS336013.73-0.090.30FairClearNONE1MainBRDSQADCPVADCP33601038074.16FIRMSANDUNEVSTDYEVENUNKNDNST1500.00
542019-03-28 15:32:39CDTYesBLPUSGS2968.200.001.00FairClearNONE1MainWADEQADCPVADCP29668.21422.09FIRMGRVLUNEVSTDYEVENUNFMUPST75.00
532019-02-04 14:43:57CSTYesBLP/CAHUSGS5178.770.001.00FairClearNONE1MainCWAYQADCPVADCP51781.31782.91FIRMGRVLUNEVSTDYEVENUNFMDNST1200.00
522018-11-20 14:20:26CSTYesBLPUSGS3328.320.001.00FairClearNONE1MainWADEQADCPVADCP33274.71512.20FIRMGRVLEVENSTDYEVENUNFMUPST80.00
512018-09-18 14:05:27CDTYesBLPUSGS2027.850.001.00FairClearNONE1MainWADEQADCPVADCP20262.01111.81FIRMGRVLUNEVSTDYEVENUNFMUPST50.00
502018-07-18 15:06:13CDTYesBLPUSGS1437.670.001.00FairClearNONE1MainWADEQADCPVADCP14361.01031.39FIRMGRVLUNEVSTDYEVENUNFMUPST100.00
492018-07-18 14:37:31CDTYesBLPUSGS1527.670.001.00FairClearNONE1MainWADEQADCPVADCP15260.31021.49FIRMGRVLEVENSTDYEVENUNFMUPST100.00
482018-06-06 09:21:27CDTYesBLPUSGS1247.630.001.00FairClearNONE1MianWADEQADCPVADCP12456.995.71.29FIRMGRVLUNEVSTDYEVENUNFMUPST80.00
472017-11-15 09:51CSTYesRHUSGS1987.440.001.00FairClearNONE1MainWADEQSCMMVADV19871.01211.65FIRMGRVLUNEVSTDYEVENSTNDUPST80.00
462017-09-15 09:23:11CDTYesRH/PWBUSGS2567.580.000.30FairClearNONE1MainWADEQADCPVADCP25674.01062.42FIRMGRVLUNEVSTDYEVENSTNDUPST70.00
452017-07-21 09:37:18CDTYesRH/CAPUSGS2077.480.000.30FairClearNONE1MainWADEQADCPVADCP20746.163.53.26FIRMGRVLUNEVPULSEVENUNFMDNST10.00
442017-05-30 13:11:07CDTYesRHUSGS2837.660.000.20FairDebrisLightNONE1mainWADEQADCPVADCP28373.31541.83FIRMGRVLUNEVPULSUNEVSTNDUPST100.00
432017-04-03 12:59:07CDTYesRHUSGS4458.200.000.30Fair NONE1mainMBOTQADCPVADCP44580.21982.24FIRMGRVLUNEVunknUNEVUNFMUPST70.00
422017-02-03 11:53:25CSTYesRH/CAPUSGS3778.000.00 Fair NONE1MainWADEQADCPVADCP37779.61722.18FIRMGRVLUNEVunknUNEVSTNDUPST50.00
412017-01-09 14:11:02CSTYesRHUSGS2997.800.000.20Fair NONE1mainBRUSQADCPVADCP29960.71042.87FIRMGRVLUNEVunknEVENUNKNUPST50.00
402016-10-20 10:11:32CDTYesRH/CAPUSGS3347.870.000.30Fair NONE1MainWADEQADCPVADCP33475.31562.14SOFTGRVLUNEVunknUNEVSTNDUPST75.00
392016-09-21 09:25:49CDTYesCAP/RHUSGS3117.880.041.00FairDebrisLightNONE1MainWADEQADCPVADCP31169.41382.25SOFTGRVLUNEVunknUNEVSTNDUPST75.00
382016-07-18 09:46:51CDTYesCAP/GDUUSGS4008.080.001.00FairDebrisLightNONE1MainWADEQADCPVADCP40080.91622.46SOFTGRVLUNEVunknUNEVSTNDUPST50.00
372016-05-26 09:10:28CDTYesCAPUSGS9309.280.000.20FairDebrisLightNONE1MainBRDSQADCPVADCP9301024082.28SOFTGRVLUNEVunknUNEVSTNDDNST1000.00
362016-04-04 09:49:09CDTYesCAP/VAMUSGS3547.980.011.00FairDebrisLightNONE1MainMBOTQADCPVADCP3541011542.30FIRMGRVLEVENunknEVENSTNDUPST40.00
352016-01-27 12:27:33CSTYesCAP/ABMUSGS4128.260.100.20FairDebrisModerateNONE1MainWADEQADCPVADCP41267.21193.46SOFTGRVLUNEVunknUNEVSTNDATGA
342015-11-30 15:09:15CSTYesCAP/VAMUSGS7409.040.020.20FairDebrisLightNONE1MainBRDSQADCPVADCP7401064161.78FIRMGRVLUNEVunknUNEVSTNDDNST1000.00
332015-11-30 14:35:30CSTYesCAP/VAMUSGS7519.050.000.20FairDebrisLightNONE1MainBRDSQADCPVADCP7511024011.87FIRMGRVLUNEVunknUNEVSTNDDNST1000.00
322015-10-19 09:33:19CDTYesCAP/ABMUSGS2197.450.000.20FairVegetationLightNONE1MainWADEQADCPVADCP21964.41101.99FIRMGRVLUNEVunknUNEVSTNDUPST30.00
312015-08-03 14:07:10CDTYesABMUSGS3908.170.000.20FairDebrisModerateNONE1mainWADEQADCPVADCP39080.61263.10FIRMGRVLUNEVunknUNEVSTNDATGA
302015-06-24 10:11:29CDTYesABM/CAPUSGS8559.440.000.20FairDebrisModerateNONE1MainWADEQADCPVADCP8551032423.53FIRMGRVLUNEVunknUNEVSTNDUPST15.00
292015-05-24 12:00CDTYesBTF/JTCUSGS9330040.39 Poor NONE1Imported Channel 1OTHRQIDIR 93300 UNSPUNSPUNSPunknUNSPUNSPUPST7500.00
282015-05-21 13:08:11CDTYesABM/RLSUSGS10109.750.040.20FairDebrisModerateNONE1mainBRDSQADCPVADCP101090.24282.35FIRMGRVLUNEVunknUNEVSTNDDNST1600.00
272015-04-06 12:35:13CDTYesABMUSGS2237.360.000.30FairDebrisLightNONE1mainBRUSQADCPVADCP22396.51491.49FIRMGRVLUNEVunknUNEVSTNDDNST50.00
262015-02-19 10:51CSTYesABMUSGS1737.120.000.70FairClearNONE1mainWADEQSCMMVADV17391.01131.53FIRMGRVLUNEVunknUNEVSTNDDNST75.00
252014-12-15 14:06CSTYesABMUSGS1366.920.000.70FairDebrisLightNONE1mainWADEQSCMMVADV13692.099.31.37FIRMGRVLUNEVunknUNEVSTNDDNST50.00
242014-10-20 12:31CDTYesABMUSGS1076.800.001.20FairDebrisLightNONE1mainWADEQSCMMVADV10795.01700.63FIRMGRVLUNEVunknUNEVSTNDUPST150.00
232014-06-30 10:57:04CDTYesABMUSGS1497.050.000.20FairDebrisModerateNONE1mainWADEQADCPVADCP14996.01810.82FIRMGRVLUNEVunknUNEVSTNDUPST50.00
222014-05-07 12:16:48CDTYesABMUSGS1196.920.000.20FairDebrisLightNONE1mainWADEQADCPVADCP11996.31670.72FIRMGRVLUNEVunknUNEVSTNDUPST75.00
212014-05-07 11:50:28CDTYesABMUSGS1216.920.000.20FairDebrisLightNONE1mainWADEQADCPVADCP12196.31710.71FIRMGRVLUNEVunknUNEVSTNDUPST75.00
202014-03-19 11:33:06CDTYesABM/GDUUSGS1377.020.000.30FairDebrisLightNONE1mainBRUSQADCPVADCP13792.02220.62FIRMGRVLUNEVunknUNEVSTNDUPST60.00
192014-01-15 08:20:30CSTYesABMUSGS1927.24-0.010.90FairDebrisModerateNONE1mainWADEQSCMMVADV19297.01611.19FIRMGRVLUNEVunknUNEVSTNDUPST75.00
182013-11-20 15:17CSTYesABMUSGS2947.700.000.70FairDebrisLightNONE1mainWADEQSCMMVADV29494.01631.80FIRMGRVLUNEVunknUNEVSTNDUPST100.00
172013-10-22 08:11CDTYesABMUSGS1637.300.000.90FairDebrisModerateNONE1mainWADEQSCMMVADV16392.096.51.69FIRMGRVLUNEVunknUNEVSTNDUPST50.00
162013-07-30 08:05:30CDTYesABMUSGS1207.160.000.50FairDebrisLightNONE1MainWADEQSCMMVADV12096.01181.02FIRMGRVLUNEVunknUNEVSTNDUPST30.00
152013-05-26 10:10:28CDTYesMAW/ABMUSGS169010.99 FairClearNONE1MainBRDSQADCPVADCP169069.14144.07SOFTsiltUNEVunknUNEVUNSPDNST1800.00
142013-05-26 09:28:44CDTYesMAW/ABMUSGS174011.22 FairClearNONE1MainBRDSQADCPVADCP174065.43984.37SOFTsiltUNEVunknUNEVNSTDDNST1800.00
132013-05-01 11:37CDTYesVAM/GDUUSGS1117.100.000.80FairClearNONE1San Marcos River at Martindale,TexasWADEQSCMMVADV11168.567.21.65FIRMGRVLEVENunknEVENUNFMDNST50.00
122013-03-12 12:14CDTYesVAMUSGS1237.12-0.011.00FairClearNONE1MainWADEQSCMMVADV12368.067.21.83FIRMGRVLEVENunknEVENUNFMDNST50.00
112012-12-20 16:32CSTYesVAMUSGS1267.12 1.00UnspecifiedUnspecifedNONE1MainWADEQSCMMVADV12670.067.31.88UNSPGRVLEVENunknEVENUNFMDNST50.00
102012-10-12 07:59CDTYesVAMUSGS1647.26-0.010.70FairClearNONE1MainWADEQSCMMVADV16479.087.41.88FIRMGRVLEVENunknEVENUNFMDNST40.00
92012-09-12 11:36:30CDTYesVAMUSGS1547.22 0.80FairClearNONE1MainWADEQSCMMVADV15479.085.31.80FIRMBLDREVENunknEVENUNFMDNST30.00
82012-08-15 12:21CDTYesVAMUSGS1727.270.000.50FairClearNONE1Channel 1WADEQSCMMVADV17282.580.12.12FIRMGRVLEVENunknEVENUNFMDNST25.00
72012-08-15 11:46:30CDTYesVAMUSGS1727.270.000.50FairClearNONE1MainWADEQSCMMVADV17283.581.92.11FIRMGRVLEVENunknEVENUNFMDNST25.00
62012-06-18 13:34CDTYesVAMUSGS2397.54-0.011.40FairClearNONE1MainWADEQSCMMVADV23997.01012.37FIRMGRVLEVENunknEVENUNFMDNST15.00
52012-04-17 12:37CDTYesVAMUSGS2787.620.010.80FairClearNONE1MainWADEQSCMMVADV27889.5117 FIRMBLDREVENunknEVENUNFMDNST40.00
42012-04-17 11:16CDTYesVAMUSGS2597.610.011.40FairClearNONE1Imported Channel 1WADEQSCMMVADV25989.51122.31FIRMBLDREVENunknEVENUNFMDNST40.00
32012-02-14 12:51:30CSTYesVAMUSGS1677.240.010.70FairClearNONE1Imported Channel 1WADEQSCMMVADV16776.583.82.00FIRMCBLSEVENunknEVENUNFMDNST20.00
22012-01-25 10:39CSTYesMAW/CAHUSGS484015.844.010.90PoorClearNONE1Imported Channel 1MBOTQADCPVADCP484018215603.10UNSPsiltEVENunknEVENUNFMDNST2500.00
12011-09-30 10:56CDTNo