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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 50051500 RIO CAYAGUAS NR SAN LORENZO, PR
San Lorenzo Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°10'35", Longitude  65°57'46" NAD27
Gage datum 259.2 feet above NGVD29
Output formats
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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)
402025-12-10 11:25:56ASTYesCDN/BLVUSGS29.5 FairClearNONE1MainWADEQSCMMVADV29.546.027.21.09SOFTSANDUNEVSTDYUNEVSTNDATGA0.00
392025-08-20 11:34:09ASTYesCDN/BLVUSGS23.9 FairDebrisLightNONE1MainWADEQSCMMVADV23.928.515.21.57SOFTSANDEVENSTDYEVENSTNDDNST200.00
382025-05-22 10:54:36ASTYesJMC/BLVUSGS30.4 Good NONE1MainWADEQSCMMVADV30.443.024.91.22FIRMSANDEVENSTDYEVENSTNDDNST90.00
372025-02-26 12:32:21ASTYesBPG/BLVUSGS44.1 Poor NONE1REWWADEQSCMMVADV44.170.049.30.89FIRMCBLSUNEVPULSUNEVNSTDUNSP
362024-10-30 10:24:40ASTYesAAM/BLVUSGS24.3 Fair NONE1MainWADEQSCMMVADV24.334.024.80.98FIRMSANDEVENSTDYEVENSTNDUNSP
352024-08-26 11:38:48ASTYesAAM/BLVUSGS35.9 Fair NONE1MainWADEQSCMMVADV35.939.038.00.95SOFTSANDEVENSTDYEVENSTNDUNSP
342024-05-15 11:14:33ASTYesAAM/BLVUSGS30.2 Poor NONE1MainWADEQSCMMVADV30.242.043.30.70FIRMSANDEVENSTDYEVENNSTDUNSP
332024-02-14 11:33:08ASTYesGNH/BLVUSGS17.2 0.50Good NONE1QW MainWADEQSCMMVADV17.223.112.41.39SOFTSANDEVENSTDYEVENSTNDATGA0.00
322023-11-21 09:48:28ASTYesGNH/DSCUSGS25.6 Good NONE1QW MainWADEQSCMMVADV25.633.037.80.68SOFTSANDEVENSTDYEVENSTNDATGA0.00
312023-08-02 09:56:13ASTYesGNH/DSCUSGS15.6 Good NONE1QW MainWADEQSCMMVADV15.641.731.70.49SOFTSANDEVENSTDYEVENSTNDATGA0.00
302023-05-03 10:00:26ASTYesGNH/DSCUSGS14.9 Good NONE1Main- QWWADEQSCMMVADV14.932.029.70.50FIRMCBLSEVENSTDYEVENSTNDATGA0.00
292023-02-22 09:38:55ASTYesDSC/YMMUSGS15.6 PoorClearNONE1MainWADEQSCMMVADV15.623.628.60.54FIRMCBLSEVENSTDYUNEVNSTDDNST100.00
282022-11-16 10:19:26ASTYesGNH/DSC/WSBUSGS183 Poor NONE1MainWADEQSCMMVADV18368.71421.29SOFTSANDUNEVSTDYEVENSTNDATGA0.00
272022-08-09 10:03:37ASTYesGNH/DSCUSGS18.8 Fair NONE1MainWADEQSCMMVADV18.834.031.20.60SOFTSANDEVENSTDYEVENSTNDATGA0.00
262022-05-23 10:34:05ASTYesGNHUSGS13.0 Good NONE1MainWADEQSCMMVADV13.032.034.80.37SOFTSANDEVENSTDYEVENSTNDATGA0.00
252022-03-16 10:10:49ASTYesGNH/DSCUSGS15.5 Good NONE1MainWADEQSCMMVADV15.529.035.10.44FIRMSANDEVENSTDYEVENSTNDATGA0.00
242022-02-16 10:33:11ASTYesGNH/DSCUSGS19.3 Good NONE1MainWADEQSCMMVADV19.331.038.40.50SOFTBLDREVENSTDYEVENUNKNUNSP
232021-11-03 10:41:30ASTYesMRT/DSCUSGS17.8 Fair NONE150051500WADEQSCMMVADV17.832.036.70.49FIRMBLDREVENSTDYEVENUNFMUNSP
222021-05-12 12:12:04ASTYesDSC/YMMUSGS8.26 Fair NONE1MainWADEQSCMMVADV8.2623.026.80.31FIRMGRVLEVENSTDYEVENSTNDATGA0.00
212021-02-17 15:11:26ASTYesDSC/YMMUSGS6.55 Poor NONE1MainWADEQSCMMVADV6.5529.073.20.09FIRMSANDEVENSTDYEVENUNKNATGA0.00
202020-11-13 10:17:30ASTYesDSC/YMMUSGS360 Poor NONE1MainOTHRother 360 FIRMSANDEVENPULSEVENSTNDATGA0.00
192020-08-31 12:35:30ASTYesBLV/YMUSGS13.9 GoodClearNONE1MainWADEQSCMMVADV13.929.028.90.48SOFTSANDEVENSTDYEVENSTNDDNST100.00
182020-05-27 10:32:19ASTYesDSV/YMUSGS10.1 Good NONE1MainWADEQSCMMVADV10.130.034.20.30FIRMSANDEVENSTDYEVENSTNDUPST5.00
172020-02-27 09:35ASTYesYMM/LVAUSGS22.8 GoodClearNONE150051500WADEQSCMMVADV22.833.025.40.90FIRMSANDEVENSTDYEVENSTNDDNST0.00
162019-11-05 14:37:30ASTYesYMM/LAVUSGS38.1 Poor NONE150051500OTHRother 38.1 FIRMSANDEVENSTDYEVENSTNDDNST1000.00
152019-08-19 10:08:30ASTYesYMM/LVAUSGS21.7 GoodClearNONE150051500WADEQSCMMVADV21.728.522.00.99FIRMSANDEVENSTDYEVENSTNDUPST0.00
142019-05-22 13:45ASTYesYMM/LVAUSGS17.3 GoodDebrisLightNONE150051500WADEQSCMMVADV17.329.513.21.30FIRMSANDEVENSTDYEVENSTNDDNST0.00
132019-02-21 12:33:30ASTYesYM/LVUSGS20.2 GoodClearNONE1500515000WADEQSCMMVADV20.225.013.81.46FIRMSANDEVENSTDYEVENSTNDUPST500.00
122018-11-06 13:10ASTYesYM/LVUSGS36.5 Poor NONE150051500OTHRother 36.5 FIRMSANDEVENSTDYEVENSTNDDNST1000.00
112018-08-16 09:49ASTYesYM/LVUSGS24.9 GoodClearNONE150051500WADEQSCMMVADV24.930.534.50.72FIRMSANDEVENSTDYEVENSTNDDNST500.00
102018-05-24 13:06ASTYesYM/EHTUSGS42.8 Poor NONE150051500WADEQSCMMVADV42.843.031.21.37FIRMSANDEVENSTDYEVENSTNDDNST10.00
92018-02-14 11:20ASTYesYM/LVUSGS50.5 Poor NONE150051500OTHRother 50.5 FIRMSANDEVENSTDYEVENUNKNDNST500.00
82017-09-05 10:11:30ASTYesYMM/JSBUSGS27.4 0.50Fair NONE150051500WADEQSCMMVADV27.441.532.70.84FIRMSANDEVENunknEVENSTNDUNSP
72017-06-01 09:08:30ASTYesLVA/YMMUSGS44.7 FairClearNONE1mainWADEQSCMMVADV44.737.051.00.88FIRMSANDEVENunknEVENSTNDUNSP
62017-03-29 08:56:30ASTYesLVA/YMUSGS14.2 GoodClearNONE150051500WADEQSCMMVADV14.230.028.00.51UNSPUNSPUNSPunknUNSPUNSPUNSP
52016-09-16 09:07ASTYesCDMUSGS17.5 Fair NONE1MainWADEQSCMMVADV17.534.327.70.63FIRMGRVLEVENunknEVENSTNDUNSP
42016-05-25 09:42:30ASTYesYM, IRUSGS30.4 Fair NONE1MainWADEQSCMMVADV30.438.535.60.85FIRMSANDEVENunknEVENSTNDUNSP
32015-11-19 09:32ASTYesMRT/YMUSGS32.3 0.50Good NONE150051500WADEQSCMMVADV32.334.021.61.50SOFTSANDEVENunknEVENSTNDUNSP
22015-08-26 09:51:30ASTYesYM, IRUSGS10.6 Fair NONE1MainWADEQSCMMVADV10.621.08.501.25FIRMGRVLEVENunknEVENSTNDUNSP
12015-05-20 11:09ASTYesYM, IRUSGS8.30 Fair NONE1MainWADEQSCMMVADV8.3019.57.051.18FIRMSANDEVENunknUNEVSTNDUNSP