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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 15226620 LOWE R AB HORSETAIL FALLS NR VALDEZ AK
Chugach Census Area County, Alaska
Hydrologic Unit Code 190202010906
Latitude  61°04'01.5", Longitude 145°54'22" NAD83
Drainage area 215.0  square miles
Gage datum 326.0 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 		 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)
892025-12-02 10:03:46AKSTYesAFE/KTWUSGS1712.43 PoorClearNONE1MainWADEQSCMMVADV17169.779.02.17FIRMCBLSEVENPULSUNEVUNKNUPST100.00
882025-08-21 10:54:55AKDTYesAFE/PVSUSGS28706.12 FairClearNONE1MainBRDSQADCPVADCP28701784746.05FIRMCBLSUNEVPULSUNEVUNKNDNST6000.00
872025-06-23 17:58:44AKDTYesAEL/CWSUSGS36807.420.151.50PoorClearNONE1MainBRDSQADCPVADCP36802146975.28UNSPCBLSUNSPUNSPUNSPUNKNDNST5280.00
862025-04-28 16:00:48AKDTYesAEL/BADUSGS3712.580.000.50FairClearNONE1MainWADEQADCPVADCP37169.31233.02FIRMBLDREVENSTDYUNSPUNKNUPST200.00
852025-01-21 14:30:28AKSTYesBAD/CWSUSGS1602.06-0.010.63FairClearNONE1mainWADEQSCMMVADV16069.073.42.18FIRMCBLSEVENSTDYEVENSTNDUPST250.00
842024-11-21 10:27:09AKSTYesBAD/AFEUSGS120 PoorIceCoverNONE1MainWADEQSCMMVADV12076.773.21.64FIRMCBLSUNEVSTDYUNEVNSTDUPST5500.00
832024-09-26 13:43:07AKDTYesBAD/AELUSGS8233.74-0.010.23FairClearNONE1mainBRDSQADCPVADCP82377.61565.26FIRMBLDREVENSTDYEVENNSTDDNST5500.00
822024-07-31 16:28:29AKDTYesBAD/ACDUSGS33406.530.050.25PoorClearNONE1mainBRDSQADCPVADCP33402135845.71FIRMBLDREVENSTDYEVENSTNDDNST5500.00
812024-06-04 16:46:32AKDTYesBAD/MERUSGS21605.400.050.25FairClearNONE1mainBRDSQADCPVADCP21601724404.91FIRMBLDREVENSTDYEVENNSTDDNST5500.00
802024-03-05 15:28:58AKSTYesBAD/CWSUSGS51.72.80-0.020.50PoorIceCoverNONE1mainWADEQSCMMVADV51.754.540.71.27FIRMCBLSUNEVSTDYUNEVUNKNUPST5500.00
792023-11-30 10:28AKSTYesBAD/MMDUSGS2782.050.000.25FairClearNONE1mainCWAYQADCPVADCP27870.81082.56FIRMBLDREVENSTDYEVENSTNDUPST300.00
782023-09-26 15:48:45AKDTYesBAD/NOVUSGS7293.180.000.22FairClearNONE1mainBRDSQADCPVADCP72991.11923.80FIRMCBLSEVENSTDYEVENSTNDDNST5500.00
772023-08-10 10:56:24AKDTYesBAD/KTWUSGS25706.390.000.50FairClearNONE1MAINBRDSQADCPVADCP25701124186.16FIRMBLDREVENSTDYUNEVSTNDDNST5500.00
762023-06-21 17:31:13AKDTYesBAD/MJKUSGS50008.20 PoorClearNONE2sideBRDSQADCPVADCP48261.01293.75FIRMCBLSUNEVSTDYUNEVSTNDDNST5500.00
762023-06-21 17:31:13AKDTYesBAD/MJKUSGS50008.20 PoorClearNONE1mainBRDSQADCPVADCP45201156596.86FIRMBLDRUNEVSTDYUNEVNSTDDNST5500.00
752023-05-11 09:48:31AKDTYesBAD/NOVUSGS3252.430.010.25FairClearNONE1MAINCWAYQADCPVADCP32567.21122.90FIRMBLDREVENSTDYEVENSTNDUPST500.00
742023-03-21 17:47:35AKDTYesBAD/NOVUSGS53.1 PoorIceCoverNONE1mainCWAYQADCPVADCP53.134.871.30.74FIRMSANDEVENSTDYEVENNSTDUPST5500.00
732022-12-22 10:05:07AKSTYesBAD/CVBUSGS107 PoorIceCoverNONE1mainWADEQSCMMVADV10752.060.01.78FIRMCBLSEVENSTDYEVENNSTDUPST6000.00
722022-10-05 12:27:46AKDTYesBAD/SAKUSGS14104.100.000.24FairClearNONE1MAINBRDSQADCPVADCP14101063184.43FIRMBLDREVENSTDYUNEVSTNDDNST5500.00
712022-09-21 09:58:08AKDTYesSAK/BADUSGS1000010.310.201.25PoorClearNONE1mainBRDSQSCMMVPAA1000021813307.51FIRMBLDRUNEVSTDYUNEVNSTDDNST5500.00
702022-09-20 16:29:34AKDTYesBAD/SAKUSGS55208.810.050.25PoorClearNONE1mainBRDSQADCPVADCP55202168376.60FIRMBLDRUNEVSTDYUNEVNSTDDNST5500.00
692022-08-09 16:36:31AKDTYesBAD/CWSUSGS602010.180.050.25PoorClearBYPS1mainBRDSQADCPVADCP59201626808.70FIRMCBLSEVENSTDYUNEVNSTDDNST5500.00
682022-06-08 18:22:17AKDTYesBAD/MERUSGS47909.060.100.25FairClearNONE1mainBRDSQADCPVADCP47902006876.97FIRMCBLSUNEVSTDYEVENNSTDDNST5500.00
672022-04-25 14:09:31AKDTYesBAD/JCCUSGS131 FairIceShoreNONE1mainCWAYQADCPVADCP13175.396.51.36FIRMCBLSEVENSTDYEVENNSTDUPST300.00
662022-03-02 14:50AKSTYesDSI/CWSUSGS61.6 PoorIceCoverNONE1MainMBOTQADCPVADCP61.661.31210.51FIRMBLDREVENPULSEVENNSTDUPST10560.00
652021-12-21 14:41:12AKSTYesBAD/JCCUSGS92.4 PoorIceCoverNONE1mainWADEQSCMMVADV92.467.763.11.46FIRMCBLSEVENSTDYEVENUNKNUPST5500.00
642021-10-27 11:14:54AKDTYesBAD/JCCUSGS1953.550.000.20FairClearNONE1mainWADEQADCPVADCP19581.999.51.96FIRMBLDRUNEVSTDYUNEVNSTDUPST350.00
632021-08-19 14:01:21AKDTYesBAD/PIRUSGS33808.140.500.25PoorClearNONE1mainBRDSQADCPVADCP33802084996.77FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
622021-06-10 11:08:32AKDTYesBAD/JSCUSGS27407.410.000.30FairClearNONE1mainBRDSQADCPVADCP27401834516.08FIRMBLDRUNEVSTDYUNEVNSTDDNST5500.00
612021-04-20 14:28:15AKDTYesBAD/JCCUSGS1593.230.000.30FairClearNONE1mainWADEQADCPVADCP15972.11021.55FIRMCBLSEVENSTDYUNEVNSTDUPST300.00
602021-02-17 13:55:38AKSTYesBAD/TRDUnspe63.8 PoorIceCoverNONE1mainWADEQSCMMVADV63.875.077.20.83FIRMGRVLEVENSTDYUNEVUNKNUPST5500.00
592020-12-16 14:56:21AKSTYesBAD/DSIUSGS121 PoorIceCoverNONE1mainWADEQSCMMVADV12178.381.81.48FIRMCBLSUNEVSTDYUNEVNSTDUPST5500.00
582020-10-15 09:56AKDTYesBAD/RCTUSGS6514.530.030.50PoorClearNONE1mainBRDSQSCMMVADCP65178.01683.88FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
572020-08-12 10:02:30AKDTYesBAD/CWSUSGS25907.19-0.100.75PoorClearNONE2sideOTHRother 52.0 FIRMGRVLUNEVSTDYUNSPUNKNDNST5500.00
572020-08-12 10:02:30AKDTYesBAD/CWSUSGS25907.19-0.100.75PoorClearNONE1mainBRDSQSCMMVADCP25401604455.71FIRMLDGEUNEVSTDYUNEVUNKNDNST5500.00
562020-06-17 12:05:04AKDTYesBAD/JCCUSGS39108.21-0.061.12PoorClearNONE1mainBRDSQSCMMVPAA39101996146.37FIRMBLDRUNEVSTDYUNEVUNKNDNST5500.00
552020-05-16 19:13:58AKDTYesBAD/TRDUSGS23507.210.000.25FairClearNONE1mainBRDSQADCPVADCP23501944585.13FIRMCBLSEVENSTDYUNEVNSTDDNST5500.00
542020-01-14 15:24AKSTYesBAD/MPCUSGS100 PoorIceCoverNONE1mainWADEQSCMMVADV10061.076.11.31FIRMCBLSEVENSTDYEVENNSTDUPST6000.00
532019-10-29 10:00:58AKDTYesBAD/JCCUSGS8315.100.020.50PoorClearNONE2mainBRDSQADCPVADCP78384.41734.52FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
532019-10-29 10:00:58AKDTYesBAD/JCCUSGS8315.100.020.50PoorClearNONE1sideWADEQSCMMVADV48.142.523.42.05FIRMGRVLUNEVSTDYUNEVSTNDDNST5500.00
522019-09-11 09:58:29AKDTYesBAD/CWSUSGS21806.82-0.020.83PoorClearNONE1mainBRDSQADCPVADCP21801834335.03FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
512019-08-07 11:16AKDTYesBAD/SJKUSGS42408.380.301.50PoorClearNONE2main/thalwagBRDSQSCMMVADCP36701194667.87FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
512019-08-07 11:16AKDTYesBAD/SJKUSGS42408.380.301.50PoorClearNONE1main/edgeBRDSQSCMMVADCP56683.01453.91FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
502019-06-17 17:38AKDTYesBAD/JSOUSGS36007.68 PoorClearNONE1mainBRDSQSCMMVADCP36002055376.70FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
492019-05-10 12:46:30AKDTYesBAD/JCCUSGS15905.210.051.00PoorIceAnchorNONE1mainBRDSQSCMMVADCP15901804413.60FIRMCBLSUNEVSTDYUNEVNSTDDNST5500.00
482019-04-15 15:35:26AKDTYesBAD/JCCUSGS2512.990.011.00GoodClearNONE1mainWADEQSCMMVADV25172.81072.35FIRMCBLSUNEVSTDYEVENUNKNUPST250.00
472019-02-20 15:30:30AKSTYesBAD/MPCUSGS80.2 PoorIceCoverNONE12 CHANNEL COMPOSITEWADEQSCMMVADV80.246.043.31.77FIRMCBLSUNEVSTDYUNEVSTNDUPST5500.00
462018-12-18 15:35:30AKSTYesBAD/PVSUSGS2082.800.001.00FairClearNONE1mainWADEQSCMMVADV20870.588.12.36FIRMBLDRUNEVSTDYEVENSTNDUPST300.00
452018-10-12 09:31AKDTYesBAD/CSCUSGS4513.640.020.50PoorClearNONE1mainBRDSQSCMMVADCP45166.01423.17FIRMBLDRUNEVSTDYUNEVUNKNDNST5500.00
442018-10-10 17:33:51AKDTYesBAD/CSCUSGS6924.000.050.50PoorClearNONE1mainBRDSQADCPVADCP69286.61853.74FIRMBLDRUNEVSTDYUNEVNSTDDNST5500.00
432018-08-13 15:53:38AKDTYesBAD/JCCUSGS69909.18 PoorClearNONE1mainBRDSQSCMMVPAA699019910306.78FIRMBLDRUNEVSTDYUNEVUNKNDNST5500.00
422018-06-21 09:59:32AKDTYesBAD/RPMUSGS69508.78-0.051.50PoorClearNONE1mainBRDSQSCMMVPAA695020712505.58FIRMBLDRUNEVPULSUNEVNSTDDNST5500.00
412018-05-21 15:26:29AKDTYesBAD/CWSUSGS9764.83 FairClearBYPS1mainBRDSQADCPVADCP9661152813.44FIRMBLDRUNEVSTDYUNEVSTNDDNST5500.00
402018-04-09 15:17:30AKDTYesBAD/PVSUSGS64.7 FairIceShoreNONE1mainWADEQSCMMVADV64.757.044.01.47FIRMCBLSUNEVSTDYEVENUNKNUPST100.00
392018-02-26 14:24:37AKSTYesBAD/MPCUSGS64.8 GoodIceCoverNONE1mainWADEQSCMMVADV64.843.031.82.04FIRMCBLSEVENSTDYEVENUNKNUPST5500.00
382017-12-18 14:26AKSTYesBAD/RMJUSGS1952.810.000.65FairClearNONE1mainWADEQSCMMVADV19569.388.22.21FIRMCBLSUNEVSTDYEVENSTNDUPST100.00
372017-10-24 14:00:30AKDTYesBAD/KTWUSGS3183.050.001.10FairClearNONE1mainWADEQSCMMVADV31870.51142.79FIRMCBLSEVENunknEVENNSTDUPST150.00
362017-09-20 15:42:19AKDTYesBAD/CWSUSGS12104.660.071.00PoorClearNONE2mainBRDSQADCPVADCP112082.83183.52FIRMBLDRUNEVunknUNEVNSTDDNST5500.00
362017-09-20 15:42:19AKDTYesBAD/CWSUSGS12104.660.071.00PoorClearNONE1sideWADEQSCMMVADV84.368.234.42.45FIRMGRVLUNEVunknUNEVUNKNDNST5500.00
352017-07-27 15:56:30AKDTYesBAD/JSOUSGS35207.480.071.40PoorClearNONE1mainBRDSQSCMMunkno35202015646.24FIRMBLDRUNEVunknUNEVNSTDDNST5500.00
342017-05-30 18:24:11AKDTYesBAD/RMJUSGS7684.640.040.50PoorClearNONE1mainBRDSQADCPVADCP7681212682.86FIRMCBLSUNEVunknUNEVSTNDDNST5500.00
332017-04-24 18:57:30AKDTYesBAD/RMJUSGS2613.010.010.90FairClearNONE1mainWADEQSCMMVADV26166.01012.58FIRMCBLSUNEVunknEVENNSTDUPST300.00
322017-02-23 15:24AKSTYesBAD/JDCUSGS57.5 0.000.80FairIceCoverNONE1mainWADEQSCMMVADV57.553.548.91.18FIRMGRVLEVENunknUNEVSTNDUPST10000.00
312016-12-14 16:48AKSTYesBAD/KTWUSGS92.5 PoorIceCoverNONE1mainWADEQSCMMVADV92.543.046.22.00FIRMCBLSUNEVunknUNEVSTNDUPST10000.00
302016-10-19 14:17:30AKDTYesBAD/JSOUSGS2343.040.020.80FairClearNONE1mainWADEQSCMMVADV23469.592.92.52FIRMGRVLEVENunknEVENNSTDUPST200.00
292016-08-22 15:36:38AKDTYesBAD/JDCUSGS46707.760.272.30PoorClearNONE2side channelWADEQSCMMVADV36640.094.23.89FIRMBLDRUNEVunknUNEVNSTDDNST5500.00
292016-08-22 15:36:38AKDTYesBAD/JDCUSGS46707.760.272.30PoorClearNONE1mainBRDSQSCMMVPAA43001686536.58FIRMCBLSUNEVunknUNSPNSTDUNSP
282016-07-13 17:05:30AKDTYesBAD/jsoUSGS71009.330.211.30PoorClearNONE1mainBRDSQSCMMVPAA71002069387.57FIRMCBLSUNEVunknUNEVNSTDDNST5500.00
272016-05-25 11:15:59AKDTYesBAD/TRMUSGS31206.630.001.00PoorClearNONE1mainBRDSQSCMMVPAA31202025255.95FIRMCBLSUNEVunknUNSPUNKNDNST5500.00
262016-04-12 16:56:30AKDTYesBAD/RMJUSGS2622.870.011.30FairClearNONE1mainWADEQSCMMVADV26274.094.02.79FIRMCBLSUNEVunknEVENSTNDUPST150.00
252016-02-24 17:24AKSTYesBAD/JDCUSGS91.8 PoorIceShoreNONE1mainWADEQSCMMVADV91.864.056.81.62FIRMCBLSEVENunknUNEVSTNDUPST150.00
242016-01-07 12:35AKSTYesBAD/PVSUSGS134 PoorIceCoverNONE1mainWADEQSCMMVADV13457.51221.10FIRMGRVLEVENunknEVENNSTDUPST2000.00
232015-11-17 16:04AKSTYesBAD/JDCUSGS1264.41 PoorIceCoverNONE1main above canyonWADEQSCMMVADV12651.061.22.07FIRMGRVLUNEVunknUNEVSTNDUPST5500.00
222015-10-02 10:12:37AKDTYesBAD/KMJUSGS19405.140.000.80PoorClearNONE2side channel at TAPS bridgeWADEQSCMMVPAA20.324.020.60.99FIRMSANDEVENunknEVENUNKNDNST5500.00
222015-10-02 10:12:37AKDTYesBAD/KMJUSGS19405.140.000.80PoorClearNONE1main at TAPS bridgeBRDSQSCMMVPAA19201193475.54FIRMCBLSEVENunknUNEVUNKNDNST5500.00
212015-08-18 14:12:07AKDTYesBAD/TRMUSGS896010.20-0.121.80PoorClearNONE1main at TAPS bridgeBRDSQSCMMVPAA89601989949.02FIRMGRVLUNEVunknUNEVUNKNDNST5500.00
202015-07-28 19:27:02AKDTYesBAD/TRDUSGS48708.470.093.50PoorClearNONE2MainBRDSQSCMMVPAA48301216207.80FIRMGRVLUNEVunknUNSPNSTDDNST5500.00
202015-07-28 19:27:02AKDTYesBAD/TRDUSGS48708.470.093.50PoorClearNONE1Left OverflowBRDSQSCMMVPAA39.616.024.81.60FIRMGRVLEVENunknUNSPUNKNDNST5500.00
192015-07-21 20:36:20AKDTYesBAD/nhdUSGS61308.77-0.061.30PoorClearNONE1main at TAPSBRDSQSCMMVPAA61301677058.70FIRMGRVLEVENunknUNEVNSTDDNST5500.00
182015-07-08 00:26:04AKDTYesRMUSGS64508.48-0.171.80PoorClearNONE1mainBRDSQSCMMVPAA64502147878.20FIRMGRVLEVENunknUNEVNSTDDNST5500.00
172015-06-19 01:07AKDTYesCWS/RPMUSGS60408.21-0.121.80PoorClearNONE1mainBRDSQSCMMVPAA60401997527.89FIRMCBLSUNEVunknUNEVUNKNDNST5500.00
162015-06-05 12:24:24AKDTYesBAD/jrmUSGS25706.310.101.00PoorClearNONE1main at alyeska bridgeBRDSQADCPVADCP25702095594.26FIRMGRVLEVENunknEVENUNKNDNST5500.00
152015-06-04 19:28:52AKDTYesBAD/jrmUSGS31206.920.001.00PoorClearNONE1ds side of Alyeska bridgeBRDSQADCPVADCP31202477554.13FIRMCBLSUNEVunknUNEVNSTDDNST5500.00
142015-05-28 10:52AKDTYesBADUSGS28406.450.000.80PoorClearNONE1mainBRDSQSCMMVADCP28401845375.28FIRMGRVLEVENunknUNEVSTNDDNST5000.00
132015-05-05 12:14:47AKDTYesBADJDCUSGS5102.950.001.00PoorClearNONE1mainCWAYQADCPVADCP51061.61373.71FIRMGRVLEVENunknEVENSTNDATGA
122015-04-07 12:04AKDTYesBAD/JDCUSGS1081.600.021.00PoorClearNONE1mainWADEQSCMMVPAA10868.01100.98FIRMGRVLEVENunknUNEVUNKNUPST1000.00
112015-03-04 17:13AKSTYesBAD/RPMUSGS82.91.51 PoorClearNONE1mainWADEQSCMMVPAA82.969.089.40.93FIRMGRVLEVENunknEVENUNKNUPST2000.00
102015-01-22 10:10AKSTYesRM/KJUSGS85.52.440.011.00PoorIceCoverNONE1MAINWADEQSCMMVPAA85.545.044.81.91FIRMGRVLEVENunknUNEVNSTDUPST1500.00
92014-11-18 10:30AKSTYesKJ/rpmUSGS1652.030.000.80PoorClearNONE1MAINWADEQSCMMVPAA16582.070.72.34FIRMGRVLEVENunknEVENUNFMDNST300.00
82014-10-07 15:30AKDTYesRM/KJUSGS4562.870.001.00PoorClearNONE1MAINWADEQSCMMVPAA45689.01333.43FIRMGRVLEVENunknEVENUNFMDNST500.00
72014-07-16 09:27:30AKDTYesRM/FWSUSGS35406.64-0.012.00PoorClearNONE1MAINBRUSQSCMMVPAA35402546005.90FIRMCBLSUNEVunknUNEVNSTDDNST3000.00
62014-05-01 09:35:15AKDTYesRM/KJUSGS4653.00-0.020.60FairClearNONE1MAINWADEQSCMMVPAA46570.01203.88FIRMGRVLEVENunknEVENUNFMDNST30.00
52014-04-24 15:17:30AKDTYesRM/JWUSGS2752.430.020.60GoodClearNONE1MAINWADEQSCMMVPAA27585.598.62.79FIRMGRVLEVENunknEVENUNFMDNST10.00
42014-04-18 09:53:30AKDTYesRM/JWUSGS1131.960.000.40GoodClearNONE1MAINWADEQSCMMVPAA11352.041.72.71FIRMGRVLEVENunknEVENUNFMDNST10.00
32006-10-09 11:59:59AKDTYesDAL/GLSUSGS4200020.58 24.00PoorClearNONE1Imported Channel 1OTHRQIDIR 42000 UNSPUNSPUNSPunknUNSPUNSPUNSP