# //UNITED STATES GEOLOGICAL SURVEY http://water.usgs.gov/ # //NATIONAL WATER INFORMATION SYSTEM http://water.usgs.gov/data.html # //DATA ARE PROVISIONAL AND SUBJECT TO CHANGE UNTIL PUBLISHED BY USGS # //RETRIEVED: 2026-03-20 17:30:03 # //WARNING # //WARNING The stage-discharge rating provided in this file should be # //WARNING considered provisional and subject to change. Stage-discharge # //WARNING ratings change over time as the channel features that control # //WARNING the relation between stage and discharge vary. Users are # //WARNING cautioned to consider carefully the applicability of this # //WARNING rating before using it for decisions that concern personal or # //WARNING public safety or operational consequences. # //FILE TYPE="NWIS RATING" # //DATABASE NUMBER=01 DESCRIPTION=" Standard data base for this site." # //STATION AGENCY="USGS " NUMBER="06137574 " TIME_ZONE="MST" DST_FLAG=Y # //STATION NAME="Boxelder Cr bl Brown's Res Div, nr Box Elder, MT" # //LABEL="Discharge ft^3/s" # //PARAMETER CODE="00060" # //RATING ID="001" TYPE="STGQ" NAME="stage-discharge" AGING=Working # //RATING REMARKS="Stage discharge rating 001 was developed in Aquarius using discharge measurements 1-4, 6 and 7. The GZF was surveyed at ~5.00 ft with the rating GZF set at 5.21 ft to force a best fit to low flow MMT 7. It is possible the surveyed GZF is not the actual GZF in the cobble/boulder control. Three rating descriptor points were used with an offset of 4.8 to best fit the measurement data. \\nThe rating error stats for the measurements used in rating development is 2.8% indicating a good rating fit. There was one outlier MMT 5 that plotted 12.8% from the rating and was not considered in the rating development. \\nA cross-sectional survey made Nov. 14, 2024 indicated the flow will overbank on the right edge of water at about 8.88 ft, well above where the rating extension out to 6.80 ft ends so no break point is necessary for this rating which was extended two times the highest measured discharge. \\n\\nRating control is a cobble/boulder riffle. More info on control in SD Rating Ops. \\n" # //RATING EXPANSION="logarithmic" # //RATING OFFSET1=4.800000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20241115081500 BZONE=-07:00 END=-------------- EZONE=--- AGING=Working # //RATING_DATETIME COMMENT="" INDEP DEP STOR 16N 16N 1S 5.0700000E+00 1.0000000E-02 * 6.8000000E+00 7.3600000E+01 *