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Warning! This data has NOT been reviewed for accuracy.
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Plot last updated at : 18:10 hrs - Sun, 09 Nov 2025 |
JEMEZ CANYON RESERVOIR
JEMEZ RIVER
DRAINAGE AREA =1,034 SQ MI
VOLUME AREA ELEV. FLOW IN CFS
IN ACRE-FEET IN ACRES IN FEET OUTLET SPILLWAY
TOP OF PARAPET WALL 275,131 5,351 5,274.60
TOP OF DAM 259,342 5,176 5,271.60 9,800 324,000
MAXIMUM POOL 257,276 5,153 5,271.20 9,700 318,000
TOP OF FLOOD CONTROL 99,334 2,862 5,232.00 8,340 0
AND SPILLWAY CREST
AUTHORIZED FLOOD CONTROL
SPACE 73,000
SEDIMENT SPACE
INITIAL 44,213
1958 SURVEY* 42,821
1959 SURVEY* 40,874
1965 SURVEY* 39,809
1975 SURVEY* 33,100
1983 SURVEY* 29,712
1991 SURVEY* 27,485
1998 SURVEY* 24,425
2016 LIDAR* 26,334 1,164 5,194.93
ZERO STORAGE 0 0 5,133.47
CONDUIT INVERT 0 0 5,125.00
COMMENTS
ALL ELEVATIONS ARE IN NGVD29. ADD 3.08 FT TO CONVERT TO NAVD88
1 INCH OF RUNOFF EQUALS 55,147 AC-FT
FLOOD SPACE EQUALS 1.32 INCHES OF RUNOFF
A-C TABLE ADOPTED JANUARY 2019 BASED ON NOV 13, 2016 LIDAR
FROM 1985-2000 HELD AVERAGE 25,000 AC-FT POOL IN SEDIMENT RESERVE SPACE
*Sediment space remaining below spillway crest elevation 5232.00
Sediment Deposits
Date of Survey Period Period Average
Years Total Annual
(yrs) (ac-ft) (ac-ft/yr)
Oct 1953 - - -
Jan 1958 4.25 1,392 328
Aug 1959 1.67 1,947 1,166
Dec 1965 6.33 1,065 168
Jan 1975 9.08 6,709 739
Dec 1983 8.92 3,388 380
Jun 1991 7.50 2,227 296
Jun 1998 7.00 3,060 437
Nov 2016 18.42 -1,909 -104
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