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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 08183970 Cibolo Ck at Blanco Rd abv Bulverde, TX
Comal County, Texas
Hydrologic Unit Code 12100304
Latitude  29°44'33.12", Longitude  98°30'50.88" NAD83
Drainage area 153  square miles
Contributing drainage area 153  square miles
Gage datum 1,119 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 
132002-07-13 09:37CDTYesDJO/RNSUSGS420 FairClearNONE
122002-07-10 09:28CDTYesDJO/JWEUSGS1310 FairClearNONE
112002-07-09 12:46CDTYesDJO/JWEUSGS1380 FairClearNONE
102001-09-12 11:08CDTYesDJO/BLPUSGS1.40 FairClearNONE
92001-09-11 10:17CDTYesRTMUSGS8.60 FairClearNONE
82001-09-11 08:00CDTYesDJOUSGS9.50 FairClearNONE
72001-09-10 13:42CDTYesDJOUSGS22.6 FairClearNONE
62001-09-10 08:45CDTYesDJOUSGS26.1 FairClearNONE
52001-09-09 14:00CDTYesDJOUSGS55.0 FairClearNONE
42001-09-08 10:02CDTYesDJOUSGS115 FairClearNONE
32001-09-07 16:35CDTYesDJOUSGS185 FairClearNONE
22001-09-07 11:10CDTYesDJOUSGS234 FairClearNONE
12001-09-07 08:29CDTYesDJOUSGS258 FairClearNONE