Warning! This data has NOT been reviewed for accuracy.

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Time series plot showing recent conditions at the lake or reservoir.  See tabulated data for details.

Plot last updated at : 21:00 hrs - Thu, 19 Sep 2019



                              JOHN MARTIN RESERVOIR
                                  ARKANSAS RIVER
                           DRAINAGE AREA = 18,130 SQ MI


                         VOLUME         AREA       ELEV.      FLOW IN CFS
                         IN ACRE-FEET   IN ACRES   IN FEET    OUTLET  SPILLWAY


TOP OF DAM               788,104        20,516     3,880              660,000

 

TOP OF FLOOD CONTROL     599,852        17,151     3,870      16,300  639,000



MAX. REC. AND            340,771        11,658     3,851.87   
CONSERVATION



TOP OF CONSERVATION      330,703        11,484     3,851      14,700  128,000



SPILLWAY CREST           219,869         8,842     3,840      13,780        0





ZERO STORAGE                   0             0     3,783           0        0


CONDUIT INVERT                 0             0     3,766           0        0


STREAM BED                                         3,765


COMMENTS

VERTICAL DATA - NGVD 1929
MAXIMUM PERMANENT POOL CAPACITY = 15,000 ACFT (10,000 ACFT OF PERMANENT POOL MAY EXTEND 
INTO FLOOD POOL.)
1 INCH OF RUNOFF EQUALS 966,933 AC-FT
FLOOD CONTROL SPACE EQUALS 0.28 INCHES OF RUNOFF
A-C TABLE ADOPTED NOVEMBER 2013
TOTAL SEDIMENT DEPOSITION TO DATE 101,923 ACRE-FEET (2009 Survey).