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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 50091000 RIO MAUNABO AT MAUNABO, PR
Maunabo Municipio, Puerto Rico
Hydrologic Unit Code 21010005
Latitude  18°00'24", Longitude  65°54'19" NAD27
Drainage area 12.0  square miles
Gage datum 16.4 feet above NGVD29
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
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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)
412025-12-15 13:32:44ASTYesGNH/DSCUSGS14.0 Good NONE1QW MainWADEQSCMMVADV14.029.010.41.34SOFTSANDEVENSTDYEVENSTNDATGA0.00
402025-08-18 13:40:37ASTYesGNH/DSCUSGS53.0 0.45Good NONE1QW MainWADEQSCMMVADV53.040.026.81.97SOFTSANDEVENSTDYEVENSTNDATGA0.00
392025-05-19 12:57:54ASTYesGNH/DSCUSGS24.3 Fair NONE1QW MainWADEQSCMMVADV24.327.718.91.28SOFTSANDEVENSTDYEVENSTNDATGA0.00
382025-02-03 13:35:41ASTYesGNH/DSCUSGS19.4 0.48Fair NONE1QW MainWADEQSCMMVADV19.428.214.01.39FIRMSANDEVENSTDYEVENSTNDATGA0.00
372024-11-20 12:12ASTYesCDN/DSCUSGS1.68 FairClearNONE1MainWADEQSCMMVADV1.6811.92.610.65SOFTSANDUNEVSTDYEVENSTNDUNSP
362024-08-12 13:54:11ASTYesGNH/DSCUSGS22.6 Fair NONE1QW MainWADEQSCMMVADV22.635.215.21.49SOFTSANDEVENSTDYUNEVSTNDATGA0.00
352024-04-29 13:51:14ASTYesGNH/DSCUSGS11.9 Good NONE1QW MainWADEQSCMMVADV11.929.610.41.14FIRMSANDEVENSTDYEVENSTNDATGA0.00
342024-01-29 14:10:08ASTYesGNH/DSCUSGS11.9 0.50Fair NONE1QW MainWADEQSCMMVADV11.928.510.71.11FIRMSANDEVENSTDYEVENSTNDATGA0.00
332023-10-30 14:45:22ASTYesGNH/DSCUSGS63.0 Good NONE1QW MeasurementWADEQSCMMVADV63.037.128.52.21SOFTSANDEVENPULSEVENSTNDATGA0.00
322023-08-07 14:55:55ASTYesBPG/DSCUSGS24.4 Fair NONE1mainWADEQSCMMVADV24.424.716.81.45SOFTSANDUNEVPULSEVENSTNDATGA0.00
312023-05-08 14:03:59ASTYesGNH/DSCUSGS5.36 0.50Fair NONE1MainWADEQSCMMVADV5.3615.87.990.67SOFTSANDUNEVSTDYUNEVSTNDATGA0.00
302023-01-30 14:19:03ASTYesJRCUSGS12.7 Fair NONE1MainWADEQSCMMVADV12.721.012.01.05SOFTSANDEVENSTDYEVENSTNDATGA0.00
292022-10-31 14:21:43ASTYesGNH/DSCUSGS111 Fair NONE1MainWADEQSCMMVADV11135.646.02.42SOFTSANDEVENPULSEVENSTNDATGA0.00
282022-08-15 14:18:07ASTYesGNH/DSCUSGS7.76 Fair NONE1MainWADEQSCMMVADV7.7625.010.80.72SOFTSANDEVENSTDYEVENSTNDATGA0.00
272022-05-17 13:10:52ASTYesGNH/DSCUSGS10.8 GoodVegetationModerateNONE1MainWADEQSCMMVADV10.827.015.20.71SOFTSANDEVENSTDYEVENSTNDATGA0.00
262022-02-07 16:01:45ASTYesGNH/DSCUSGS112 Poor NONE1MainWADEQSCMMVADV11230.061.11.83SOFTGRVLUNEVPULSEVENNSTDATGA0.00
252021-11-08 13:43:30ASTYesJCS/DSCUSGS9.20 Poor NONE1MainWADEQSCMMVADV9.2026.811.70.79FIRMSANDEVENSTDYEVENSTNDUNSP
242021-08-16 15:27:48ASTYesYMM/DSCUSGS28.5 FairClearNONE1MainWADEQSCMMVADV28.527.017.51.63FIRMSANDEVENSTDYEVENSTNDATGA0.00
232021-05-17 13:31:15ASTYesYMM/LVAUSGS6.86 Fair NONE150091000WADEQSCMMVADV6.8610.04.481.53FIRMSANDEVENSTDYEVENSTNDDNST0.00
222021-02-08 11:32:50ASTYesDSC/YMMUSGS14.8 Fair NONE1MainWADEQSCMMVADV14.824.012.11.22FIRMSANDEVENSTDYEVENSTNDATGA0.00
212020-11-16 14:41:22ASTYesDSC/YMMUSGS55.8 Fair NONE1MainWADEQSCMMVADV55.829.028.01.99FIRMSANDEVENSTDYEVENSTNDDNST10.00
202020-08-24 13:43:43ASTYesDSC/YMMUSGS16.4 Good NONE1MainWADEQSCMMVADV16.423.015.71.05SOFTSANDEVENSTDYEVENSTNDUPST5.00
192020-05-11 12:01ASTYesCWB/YMMUSGS6.24 Fair NONE1MainWADEQSCMMVADV6.2415.57.170.87SOFTSANDEVENSTDYEVENSTNDUNSP
182020-02-18 14:10:30ASTYesHJE/LVAUSGS23.5 Good NONE1mainWADEQSCMMVADV23.526.015.81.49FIRMSANDEVENSTDYEVENSTNDATGA0.00
172019-11-12 12:28ASTYesYMM/LVAUSGS43.6 Poor NONE150091000WADEQSCMMVADV43.624.015.62.79FIRMSANDEVENSTDYEVENSTNDDNST0.00
162019-08-12 11:56ASTYesYMM/LVAUSGS30.4 ExcellentClearNONE150091000WADEQSCMMVADV30.429.016.51.84FIRMSANDEVENSTDYEVENSTNDDNST0.00
152019-05-13 11:16:30ASTYesYMM/LVAUSGS9.54 GoodClearNONE150091000WADEQSCMMVADV9.5412.06.151.55FIRMSANDEVENSTDYEVENSTNDDNST100.00
142019-02-25 14:24ASTYesYMM/LVAUSGS16.0 FairDebrisLightNONE150091000WADEQSCMMVADV16.022.010.31.55FIRMSANDEVENSTDYEVENUNKNDNST200.00
132018-11-13 15:35ASTYesYM/LVUSGS47.8 FairClearNONE150091000WADEQSCMMVADV47.820.019.12.50FIRMSANDEVENSTDYEVENSTNDUPST5.00
122018-08-20 13:23:30ASTYesYM/LVUSGS47.8 FairDebrisLightNONE150091000WADEQSCMMVADV47.818.018.82.54FIRMSANDEVENSTDYEVENSTNDDNST100.00
112018-05-14 13:52:30ASTYesYM/LVUSGS30.8 Good NONE150091000WADEQSCMMVADV30.827.016.01.92FIRMSANDEVENSTDYEVENSTNDDNST200.00
102018-02-27 10:23:30ASTYesYM/LVUSGS23.9 GoodDebrisModerateNONE150091000WADEQSCMMVADV23.924.013.91.72FIRMSANDEVENSTDYEVENUNKNDNST200.00
92017-08-14 13:45ASTYesLVA/YMMUSGS15.8 FairClearNONE150091000WADEQSCMMVADV15.821.010.81.46SOFTSANDUNEVunknEVENSTNDUNSP
82017-06-01 12:57:30ASTYesLVA/YMMUSGS26.4 GoodClearNONE1mainWADEQSCMMVADV26.426.014.11.88UNSPUNSPUNSPunknUNSPUNSPUNSP
72017-04-06 12:27ASTYesLVA/YMUSGS8.66 FairClearNONE1mainWADEQSCMMVADV8.6617.07.121.22SOFTSANDUNEVunknUNEVUNFMUNSP
62016-11-14 13:24:30ASTYesYM/IRUSGS34.3 Fair NONE1MainWADEQSCMMVADV34.339.018.41.86FIRMCBLSEVENunknEVENSTNDUNSP
52016-09-22 12:57ASTYesCDMUSGS22.9 Fair NONE1MainWADEQSCMMVADV22.926.015.31.50FIRMGRVLEVENunknUNEVSTNDUNSP
42016-06-01 14:43:30ASTYesMRT/Y/JUSGS33.7 0.30Fair NONE150091000WADEQSCMMVADV33.734.018.81.79SOFTSANDEVENunknEVENSTNDUNSP
32016-02-22 13:36ASTYesYM, IRUSGS9.75 Fair NONE1MainWADEQSCMMVADV9.7527.08.151.20SOFTSANDEVENunknEVENSTNDUNSP
22015-11-16 14:18ASTYesMRT/YMUSGS18.4 0.40Fair NONE150091000WADEQSCMMVADV18.440.017.01.08SOFTSANDEVENunknEVENSTNDDNST160.00
12015-08-31 11:44ASTYesYM, IRUSGS5.10 Poor NONE1MainWADEQSCMMVADV5.107.504.961.03FIRMSANDEVENunknEVENSTNDUNSP