Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
Click to hide state-specific text

! This page 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.

USGS 11080880 WF SAN GABRIEL R BL COGSWELL DAM CA

  Stream Site

DESCRIPTION:
Latitude 34°14'39",   Longitude 117°57'25"   NAD27
Los Angeles County, California, Hydrologic Unit 18070106
Drainage area: 41.1 square miles
Datum of gage: 2,140 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Daily Data
    Discharge, cubic feet per second  1974-10-30  1975-02-05  99 
 Daily Statistics 
    Discharge, cubic feet per second  1974-10-30  1975-02-05 99 
 Monthly Statistics 
    Discharge, cubic feet per second  1974-10  1975-02  
 Annual Statistics 
    Discharge, cubic feet per second  1975  1975  
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 2009-09-11  2009-12-08  3 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS California Water Science Center
Email questions about this site to California Water Science Center Water-Data Inquiries