Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Streamflow Measurements for the Nation


USGS 08171350 Blanco Rv at San Marcos, TX


Hays County, Texas
Hydrologic Unit Code 12100203
Latitude  29°52'46.24", Longitude  97°54'38.71" NAD83
Drainage area 436.0  square miles
Gage datum 542.97 feet above NAVD88
Output formats
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
Reselect output format
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
 
822024-03-08 12:51:31CSTYesAJLUSGS1.487.990.000.30PoorVegetationModerateNONE
812024-03-08 12:32:34CSTYesAJLUSGS1.557.990.000.30PoorVegetationModerateNONE
802024-01-17 13:49:15CSTYesAJLUSGS0.687.690.000.10PoorClearNONE
792024-01-17 13:37:53CSTYesAJLUSGS0.667.690.000.10PoorClearNONE
782023-12-05 12:31:44CSTYesAJLUSGS0.077.570.000.10PoorClearNONE
772023-12-05 12:28:20CSTYesAJLUSGS0.087.570.000.10PoorClearNONE
762023-10-10 09:55CDTYesAJLUSGS0.00 ExcellentNoFlowNONE
752023-08-30 16:10CDTYesAJLUSGS0.00 ExcellentNoFlowNONE
742023-07-31 09:30CDTYesAJLUSGS0.00 ExcellentNoFlowNONE
732023-06-01 10:27:12CDTYesAJLUSGS0.217.820.000.10PoorDebrisModerateNONE
722023-06-01 10:20:26CDTYesAJLUSGS0.237.820.000.10PoorDebrisModerateNONE
712023-04-03 14:34:43CDTYesAJLUSGS0.067.620.000.10PoorVegetationModerateNONE
702023-04-03 14:28:49CDTYesAJLUSGS0.077.620.000.10PoorVegetationModerateNONE
692023-02-22 09:40:48CSTYesAJL/OSCUSGS1.367.88-0.080.30PoorDebrisModerateNONE
682023-01-03 14:45CSTYesAJLUSGS0.00 ExcellentNoFlowNONE
672022-11-18 11:29CSTYesAJLUSGS0.00 ExcellentNoFlowNONE
662022-09-07 15:15:30CDTYesPWBUSGS0.006.180.000.15Excellent NONE
652022-08-09 13:15CDTYesABMUSGS0.005.650.000.10ExcellentNoFlowNONE
642022-06-21 09:00CDTYesABMUSGS0.006.250.000.10ExcellentNoFlowNONE
632022-04-20 09:15CDTYesABMUSGS0.007.650.000.10ExcellentNoFlowNONE
622022-03-01 08:01CSTYesMAWUSGS1.768.010.000.60FairVegetationLightNONE
612022-01-19 14:10:30CSTYesCAHUSGS0.578.100.000.50FairFillControlChangedNONE
602021-11-18 13:25:26CSTYesCAHUSGS25.48.720.000.50Fair NONE
592021-10-14 12:33:32CDTYesABM/AJLUSGS638018.28-0.280.20FairSubmergedNONE
582021-10-14 11:51:26CDTYesABM/AJLUSGS748019.24-0.570.30FairSubmergedNONE
572021-08-09 12:51:30CDTYesCAHUSGS2.847.840.000.50FairFillControlChangedNONE
562021-06-29 12:15:30CDTYesCAHUSGS10.97.980.001.00PoorFillControlChangedNONE
552021-05-13 13:42:30CDTYesCAHUSGS1.017.630.000.50PoorDebrisModerateNONE
542021-03-23 15:26CDTYesCAHUSGS0.487.560.000.50PoorFillControlChangedNONE
532021-02-09 13:35CSTYesCAHUSGS0.157.340.000.50FairDebrisModerateNONE
522020-12-08 11:05CSTYesCAHUSGS0.006.630.000.50UnspecifiedNoFlowNONE
512020-10-08 12:35CDTYesCAHUSGS0.007.330.000.20FairNoFlowNONE
502020-08-18 15:15CDTYesCAHUSGS0.006.820.000.10UnspecifiedNoFlowNONE
492020-06-25 10:27CDTYesCAHUSGS11.88.040.001.00FairFillControlChangedNONE
482020-04-28 12:55:30CDTYesCAHUSGS0.657.490.000.50PoorVegetationLightNONE
472020-02-26 13:28:30CSTYesHartmannUSGS0.147.430.000.15PoorVegetationModerateNONE
462019-12-27 14:02:30CSTYesCAHUSGS0.207.500.000.20Poor NONE
452019-10-23 10:27:30CDTYesCAHUSGS0.006.710.000.10UnspecifiedNoFlowNONE
442019-08-21 10:22:30CDTYesCAHUSGS1.877.540.001.00GoodDebrisModerateNONE
432019-06-27 12:18:11CDTYesCAHUSGS1118.920.000.50Fair NONE
422019-05-08 10:53:23CDTYesCAHUSGS43310.110.011.00FairDebrisModerateNONE
412019-03-29 23:59:30CDTYesCAHUSGS57.18.320.000.50FairVegetationModerateNONE
402019-02-04 16:22:15CSTYesCAH/BLPUSGS2209.220.001.00FairVegetationLightNONE
392018-11-14 13:39:30CSTYesCAHUSGS1338.940.011.00Poor NONE
382018-09-19 11:47CDTYesCAHUSGS29.58.030.001.00FairDebrisModerateNONE
372018-07-12 11:11CDTYesCAHUSGS2.847.410.001.00FairVegetationHeavyNONE
362018-05-21 10:22:30CDTYesCAHUSGS2.287.390.001.00FairVegetationModerateNONE
352018-03-23 08:23:30CDTYesCAHUSGS1.027.300.001.00FairVegetationModerateNONE
342018-01-18 11:33CSTYesCAHUSGS2.627.420.001.00FairVegetationModerateNONE
332017-11-13 14:55:30CSTYesABMUSGS2.387.390.000.20FairVegetationModerateNONE
322017-09-25 15:19:30CDTYesABMUSGS4.407.440.000.50FairVegetationLightNONE
312017-08-03 11:41CDTYesABM/PWBUSGS0.697.220.001.00Fair NONE
302017-06-14 13:10:09CDTYesABMUSGS33.47.910.000.20FairDebrisLightNONE
292017-04-12 09:37:16CDTYesABMUSGS133011.84-0.130.20FairDebrisModerateNONE
282017-02-21 14:02:46CSTYesABMUSGS55310.180.000.20FairDebrisLightNONE
272016-12-22 08:40:39CSTYesABMUSGS88.68.440.000.20FairDebrisLightNONE
262016-10-19 10:06:18CDTYesABMUSGS82.08.380.000.20FairClearNONE
252016-08-31 08:52:34CDTYesABMUSGS1768.910.000.20FairVegetationLightNONE
242016-06-22 08:24:06CDTYesABMUSGS3129.490.00 FairUnspecifedNONE
232016-05-20 10:01:34CDTYesABM/CAPUSGS218013.71-0.080.20FairDebrisModerateNONE
222016-05-20 09:36:01CDTYesABM/CAPUSGS226013.82-0.040.20FairDebrisModerateNONE
212016-05-19 19:38:30CDTYesABM/MASUSGS676017.240.090.20PoorDebrisModerateNONE
202016-05-19 19:02:44CDTYesABM/MASUSGS515017.020.200.50PoorDebrisModerateNONE
192016-04-18 09:49:58CDTYesABMUSGS62310.630.160.20FairClearNONE
182016-04-18 08:45:11CDTYesABMUSGS3029.750.200.10PoorClearNONE
172016-02-24 08:22:16CSTYesABMUSGS85.18.730.000.20FairDebrisLightNONE
162015-12-15 10:45:23CSTYesABM/GDUUSGS3409.79-0.020.30FairDebrisLightNONE
152015-10-09 08:13CDTYesABMUSGS1.097.770.000.40FairDebrisLightNONE
142015-08-03 10:09:15CDTYesABMUSGS62.08.710.000.20FairClearNONE
132015-06-24 12:14:57CDTYesABM/CAPUSGS54310.570.000.20FairDebrisLightNONE
122015-06-24 11:47:12CDTYesABM/CAPUSGS54010.570.000.20FairDebrisLightNONE
112015-05-25 11:42:46CDTYesABM/MBNUSGS397016.38-0.020.20FairDebrisLightNONE
102015-05-21 11:01:09CDTYesABM/RLSUSGS66211.820.000.20FairDebrisModerateNONE
92015-05-21 10:37:23CDTYesABM/RLSUSGS69711.820.000.20FairDebrisModerateNONE
82015-05-14 10:20:24CDTYesABM/MASUSGS33411.160.010.20FairDebrisLightNONE
72015-05-14 09:53:54CDTYesABM/MASUSGS35911.190.020.30FairDebrisLightNONE
62015-05-13 15:17:47CDTYesABM/MASUSGS80.69.870.000.20FairDebrisLightNONE
52015-05-13 14:47:45CDTYesABM/MASUSGS78.89.890.020.40FairDebrisLightNONE
42015-04-06 14:45:30CDTYesABMUSGS21.99.010.000.60FairVegetationModerateNONE
32015-02-19 12:41:30CSTYesABMUSGS5.558.270.00 Fair NONE
22015-01-22 10:16:25CSTNo
12015-01-22 09:49:02CSTNo