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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 402245105302300 BIG THOMPSON R BLW SANITATION OUTFLOW ABV LK ESTES
Larimer County, Colorado
Hydrologic Unit Code 10190006
Latitude  40°22'44.61", Longitude 105°30'23.51" NAD83
Drainage area 138  square miles
Gage datum 7,480 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
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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 
1072025-11-20 09:15:24MSTYesDHSUSGS22.8 Fair NONE
1062025-09-10 09:02:42MDTYesDHS/JWJUSGS34.5 Fair NONE
1082025-08-06 08:30:30MDTYesDHS/JWJUSGS73.2 Fair NONE
1052025-07-16 08:37:38MDTYesAET/JWJUSGS167 Fair NONE
1042025-06-03 09:11:30MDTYesDHS/CWLUSGS802 Fair NONE
1032025-05-07 10:43:11MDTYesDHSUSGS163 Fair NONE
1022025-04-09 08:18:59MDTYesDHSUSGS29.4 Fair NONE
1012025-03-10 13:10:24MDTYesDHS/CWLUSGS11.3 Fair NONE
1002025-02-03 11:44:18MSTYesDHSUSGS15.4 Fair NONE
992024-11-12 12:42:36MSTYesDHS/CWLUSGS23.3 Poor NONE
982024-10-07 10:37:30MDTYesDHS/CWLUSGS25.7 Poor NONE
972024-09-10 08:17:06MDTYesDHS/CWLUSGS48.8 Fair NONE
962024-08-13 08:09:56MDTYesDHS/CWLUSGS96.8 Fair NONE
952024-07-09 09:06:41MDTYesDHS/CWLUSGS189 Fair NONE
942024-06-05 08:35MDTYesDHS/CWLUSGS768 Poor NONE
932024-05-07 08:15:49MDTYesDHS/CWLUSGS111 Fair NONE
922024-04-02 07:59:20MDTYesDHS/CWLUSGS26.1 Fair NONE
912024-03-04 11:15:20MSTYesDHSUSGS17.2 Fair NONE
902024-02-06 11:36:31MSTYesDHS/CWLUSGS14.5 Fair NONE
892023-11-07 08:22:42MSTYesDHS/CWLUSGS27.3 Fair NONE
882023-10-04 08:44MDTYesAET/CWLUSGS38.7 Good NONE
872023-09-06 08:14:30MDTYesDHS/CWLUSGS74.5 Fair NONE
862023-08-10 08:22:30MDTYesDHS/CWLUSGS134 Fair NONE
852023-07-11 08:29:30MDTYesDHS/CWLUSGS386 Fair NONE
842023-06-06 09:38:30MDTYesDHS/CWLUSGS846 Poor NONE
832023-05-09 08:32:57MDTYesDHS/CWLUSGS178 Good NONE
822023-04-04 08:18:35MDTYesDHS/CWLUSGS15.8 Poor NONE
812023-03-07 08:21MSTYesDHS/CWLUSGS13.2 Fair NONE
802023-02-06 11:18:24MSTYesDHS/CWLUSGS15.8 Fair NONE
792022-11-01 10:25:13MDTYesDHS/CWLUSGS28.8 Fair NONE
782022-10-05 10:49:02MDTYesDHS/CWLUSGS46.6 Fair NONE
772022-09-07 08:06:54MDTYesDHS/CWLUSGS62.4 Fair NONE
762022-08-02 08:28:03MDTYesCWL/DHSUSGS138 Fair NONE
752022-07-12 08:29:48MDTYesDHS/CWLUSGS270 Fair NONE
742022-05-10 08:37MDTYesAWM/CWLUSGS185 Fair NONE
732022-04-11 10:44:32MDTYesAET/CWLUSGS24.8 Good NONE
722022-03-08 08:43:07MSTYesAET/CWLUSGS8.99 Poor NONE
712022-02-07 12:30:24MSTYesAET/CWLUSGS15.0 Fair NONE
702021-11-08 12:13:55MSTYesAET/CWLUSGS29.2 Fair NONE
692021-10-13 08:29MDTYesAET/CWLUSGS35.8 Poor NONE
682021-09-07 12:02MDTYesTDB/CWL/AETUSGS46.1 Fair NONE
672021-08-03 09:07MDTYesBPW/CWLUSGS269 Fair NONE
662021-07-07 08:52MDTYesAWM/CWLUSGS370 Fair NONE
652021-06-08 08:28:34MDTYesTDB/CWLUSGS958 Poor NONE
642021-05-05 08:55:30MDTYesTDB/CWLUSGS174 Fair NONE
632021-04-06 08:49MDTYesTDB/CWLUnspe63.2 Fair NONE
622021-03-09 08:44:01MSTYesTWC/CWLUnspe13.1 Fair NONE
612021-02-08 13:04:45MSTYesTWC/AWMUSGS10.8 Poor NONE
602020-11-10 10:01:30MSTYesBPW/TWCUSGS9.29 FairIceAnchorNONE
592020-10-06 07:30:31MDTYesTWCUSGS24.7 Good NONE
582020-09-01 09:28:30MDTYesDBM/TWCUSGS51.1 FairClearNONE
572020-08-03 13:08:49MDTYesBPW/TWCUSGS115 Fair NONE
562020-07-07 08:39:18MDTYesTWCUSGS238 Fair NONE
552020-06-01 13:02MDTYesTDBUSGS867 Fair NONE
542020-05-18 11:43MDTYesDBM/TCUSGS310 0.75FairClearNONE
532020-05-04 12:22MDTYesBPW/TWCUSGS298 FairClearNONE
522020-04-06 10:55:30MDTYesBPW/TWCUSGS28.4 Fair NONE
512020-03-02 14:25MSTYesBPW/TWCUSGS11.3 Fair NONE
502020-02-03 14:45:30MSTYesEIN/TWCUSGS12.1 Poor NONE
492019-04-10 07:52MDTYesLEH/EINUSGS58.8 PoorClearNONE
482019-03-06 08:14MSTYesEIN/LEHUSGS11.9 FairIceShoreNONE
472019-02-13 13:26:30MSTYesLEH/EINUSGS9.56 FairIceShoreNONE
462018-09-11 11:27:30MDTYesLEH/EINUSGS32.5 FairVegetationLightNONE
452018-05-08 13:06MDTYesEIN/CDBUSGS185 Fair NONE
442018-04-10 11:26:30MDTYesein/cdbUSGS30.4 Fair NONE
432018-03-07 12:06:30MSTYesEINUSGS20.0 Fair NONE
422018-02-06 10:29MSTYesJSFUSGS13.3 Fair NONE
412017-11-07 13:53:30MSTYesEINUSGS48.3 Fair NONE
402017-10-11 12:16:30MDTYesEIN/CDBUSGS79.7 Fair NONE
392017-09-12 11:28MDTYesCDB/EINUSGS64.2 Good NONE
382017-08-08 11:09MDTYesAST/EINUSGS247 Fair NONE
372017-05-09 12:42MDTYesEIN/CDBUSGS235 Fair NONE
362017-04-12 13:26MDTYesEIN/CDBUSGS58.1 Fair NONE
352017-03-07 14:06MSTYesCDB/EINUSGS25.3 Fair NONE
342017-02-08 11:28:30MSTYesEINUSGS15.6 Fair NONE
322016-11-07 12:27MSTYesSLHUSGS23.8 Fair NONE
312016-10-12 10:11MDTYesEIN/CDBUSGS51.6 Good NONE
302016-09-13 11:46MDTYesCDBUSGS48.0 Fair NONE
292016-08-09 13:44:30MDTYesEINUSGS94.2 Poor NONE
282016-07-26 09:53:30MDTYesEIN/SLHUSGS134 PoorClearNONE
272016-07-12 12:15MDTYesEIN/CDBUSGS207 Poor NONE
252016-05-10 12:46MDTYesCDBUSGS176 Fair NONE
332016-04-12 14:29MDTYesEIN/CDBUSGS48.7 Fair NONE
262016-03-07 12:38:30MSTYesCDBUSGS19.2 Fair NONE
242016-02-08 14:36MSTYesEAK/EINUSGS14.0 PoorIceShoreNONE
232015-11-02 13:17:30MSTYesCMBUSGS30.4 Fair NONE
222015-10-05 10:14MDTYesNMDUSGS31.1 Poor NONE
212015-09-09 12:55MDTYesEIN/CMBUSGS57.0 Poor NONE
202015-08-10 13:25:30MDTYesNMD/CMBUSGS102 Poor NONE
192015-05-11 11:18:30MDTYesCMBUSGS260 Fair NONE
182015-04-06 10:37MDTYesCMBUSGS62.9 Poor NONE
172015-03-09 12:19MDTYesNMD/CMBUSGS26.4 Fair NONE
162015-02-10 11:46MSTYesNMK/CMBUSGS24.3 FairClearNONE
152014-11-03 14:38MSTYesNMD/CMBUSGS54.7 0.50Poor NONE
142014-10-06 10:20MDTYesCMB/NMDUSGS92.6 1.50Poor NONE
132013-11-12 10:21MSTYesDB/ND/JBUSGS62.05.32 1.00GoodClearNONE
122013-10-21 11:07MDTYesDB/ND/SHUSGS104 1.00FairClearNONE
112013-09-09 10:22MDTYesMJB/JBBUSGS88.05.820.000.70GoodClearNONE
102013-04-08 09:48MDTYesJBB/NMDUSGS17.05.40-0.030.60FairVegetationLightNONE
92013-03-11 12:16MDTYesEINUSGS8.685.520.100.50PoorIceShoreNONE
82013-02-11 14:01MSTYesJBB/NMSUSGS8.38 0.60PoorIceShoreNONE
72012-11-14 08:36MSTYesJBB/NMDUSGS19.65.220.020.60PoorIceShoreNONE
62012-04-09 13:47MDTYesDLB/NMSUSGS51.26.420.000.70Fair NONE
52011-11-15 13:56MSTYesNMS/BSGUSGS33.8 0.60PoorVegetationModerateNONE
42011-02-15 14:26MSTYesNMS/BSGUSGS14.5 0.70PoorIceCoverNONE
32010-06-24 10:08MDTYesKCD/JRBUSGS5536.66 0.70FairUnspecifedNONE
22010-04-05 13:01MDTYesKJB/NMSUSGS15.35.630.140.50FairClearNONE
12010-03-09 09:58MSTYesKJB/NMSUSGS11.4 0.90Fair NONE