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Hinckley Reservoir Water Levels

Information on this page provides current data and operating parameters related to ongoing management of Hinckley Reservoir water levels.
Previous Data - 2009 Data | 2010 Data | 2011 Data | 2012 Data | 2013 Data | 2014 Data | 2015 Data

2016 Water Level Data Table
Date Hinckley Reservoir Elevation
(ft)
Hinckley Reservoir
Comparison to Elevation Trigger
(ft)1
Hinckley Reservoir Comparison to Normal Elevation
(ft)2
Hinckley Reservoir
Discharge
(cfs)3
2012 Operating Diagram Release
(cfs)4
Hinckley Reservoir Inflow
(cfs)
Hinckley Reservoir
30-Day Running Average Inflow
(cfs)5
Wilmurt Streamgage Flow
(cfs)6
Black Creek Flow
(cfs)
Mohawk Valley Water Authority Withdrawal
(cfs)
Delta Reservoir Elevation
(ft)
Delta Reservoir Discharge
(cfs)
Nine Mile Feeder Discharge
(cfs)
12/051215.117.11.59268501112936.075017328.0546.33770
12/041215.017.01.27207201345941.099820226.4N/AN/AN/A
12/031214.416.40.47297202149953.0145026127.5N/AN/AN/A
12/021213.215.2-0.87347203441917.0232051827.9546.13770
12/011210.612.6-3.47177204070831.0298062327.6545.941540
11/301207.29.3-6.57647702640731.0198039227.0545.536640
11/291205.27.2-8.4780770712694.061916729.1N/AN/AN/A
11/281205.47.4-8.0778770644714.039712127.5545.531240
11/271205.57.5-7.6766770631724.045315227.0N/AN/AN/A
11/261205.77.6-7.4783770603730.039812125.6N/AN/AN/A
11/251205.97.9-6.9783770444736.03108427.0N/AN/AN/A
11/241206.38.3-6.4760770417751.03107927.1N/AN/AN/A
11/231206.78.7-6.0818800425777.03238227.4545.728640
11/221207.19.1-5.4812800461819.03328827.5545.828640
11/211207.59.6-4.8805800521882.037492N/AN/AN/AN/A
11/201207.89.8-4.2827810584944.03828826.1N/AN/AN/A
11/191208.110.1-3.8821810591989.03918326.6N/AN/AN/A
11/181208.410.4-3.4807810637989.04579526.8N/AN/AN/A
11/171208.610.6-3.2774810651983.0N/AN/A27.8546.228944
11/161208.710.7-2.9866850549972.045411926.8546.328344
11/151209.111.1-2.4860850345960.02776827.1546.425644
11/141209.611.6-1.9855850383955.02897026.5546.525643
11/131210.112.1-1.5861860391948.03107526.9N/AN/AN/A
11/121210.612.6-0.9856860423941.03408226.7N/AN/AN/A
11/111211.013.1-0.3846860435932.03599126.8N/AN/AN/A
11/101211.513.50.2845860606923.038910127.9546.825941
11/091211.813.80.7851840537909.042110525.0N/AN/AN/A
11/081212.114.11.4835840596896.044810629.1N/AN/AN/A
11/071212.314.31.5844840761881.053312426.2546.927441
11/061212.414.41.8829830987862.068116024.5N/AN/AN/A
11/051212.314.31.88318301256836.089420125.3N/AN/AN/A
11/041211.913.91.48238301715801.0117027826.1546.827743
11/031211.113.10.88348301058752.081321028.2546.227135
11/021210.912.90.5818810857729.063812326.8N/AN/AN/A
11/011210.912.90.58188101091711.083815826.5546.224170
10/311210.612.60.28248101522684.0112019826.5546.224170
10/301210.012.0-0.67767901318639.01070214N/AN/AN/AN/A
10/291209.511.5-1.2787790934601.0641194N/AN/AN/AN/A
10/281209.411.4-1.4796790821576.0578174N/A545.725670
10/271209.411.4-1.3795790771552.0541107N/AN/AN/AN/A
10/261209.411.4-1.2429420915532.0675123N/A545.323671
10/251208.910.9-1.74244201191506.0899167N/A545.223671
10/241208.210.2-2.34214201684472.01180222N/AN/AN/AN/A
10/231206.98.9-3.64104102338422.01610317N/AN/AN/AN/A
10/221204.86.8-5.73954102389351.01700256N/AN/AN/AN/A
NY Power Authority Comments: On Oct 22, the 30 day average inflow rose above the 300 cfs trigger. The low inflow trigger is DE-ACTIVATED. Normal monitoring of Hinckley reservoir has resumed.
10/211202.54.6-7.84124101938281.01440224N/AN/AN/AN/A
10/201200.72.7-9.5415410576232.038585N/A541.522568
10/191200.52.5-9.6450450475238.038489N/A541.522568
10/181200.52.5-9.5454450323261.027460N/A541.522267
10/171200.72.7-9.1447450178263.013330N/A541.521768
10/161201.13.1-8.7490470198260.01142924.4N/AN/AN/A
10/151201.53.5-8.3478470182258.01223026.1N/AN/AN/A
10/141201.93.7-7.8477470178254.01283324.4541.821770
10/131202.23.8-7.6479470156252.01102827.5541.921770
10/121202.74.1-7.3479480152253.010827N/A542.121770
10/111203.14.4-6.9481480192253.011629N/A542.219470
10/101203.44.6-6.5485480151255.012931N/AN/AN/AN/A
10/091203.94.8-6.1504490147258.01373425.2N/AN/AN/A
10/081204.25.0-5.8480490181267.01243125.8N/AN/AN/A
10/071204.65.2-5.4492490195265.01313325.4542.519470
10/061205.05.4-5.0490490207263.01473628.0542.519470
10/051205.35.5-4.9491490250259.01684426.3542.519470
10/041205.65.7-4.7491490360255.01995626.1N/AN/AN/A
10/031205.85.7-4.6495490321248.02116025.9542.519470
10/021206.05.7-4.5509510295244.01776727.4N/AN/AN/A
10/011206.25.8-4.2498510170238.01405325.7N/AN/AN/A
09/301206.66.0-4.0508510169240.01032627.2N/AN/AN/A
09/291207.06.2-3.7496510177241.01102931.0542.519470
09/281207.46.4-3.2509550116247.01213230.0N/AN/AN/A
09/271207.86.6-2.7544550171259.01203230.4542.719470
09/261208.23.8-2.3547550121278.01102829.7542.819470
09/251208.77.2-1.9523530189296.01213129.6N/AN/AN/A
09/241209.07.4-1.6529530168299.01383527.3N/AN/AN/A
NY Power Authority Comments: As of September 24, the Hinckley 30 day average low flow trigger became ACTIVATED. Routine Communication Protocols are in effect.
09/231209.47.5-1.4529530214305.01613430.8543.119470
09/221209.87.7-0.9537530304313.020941N/A543.219470
09/211210.07.8-0.7465510448326.030855N/A543.319470
09/201210.17.7-0.6510510761345.053288N/AN/AN/AN/A
09/191209.97.2-0.85095101166334.0964150N/AN/AN/AN/A
09/181209.26.4-1.4523530380308.0279154N/AN/AN/AN/A
09/171209.46.5-1.352953091315.08317N/AN/AN/AN/A
09/161209.96.7-0.9535530141342.08618N/A543.119470
09/151210.37.0-0.553353060378.0922027.8N/AN/AN/A
09/141210.87.2-0.2544550117396.0992129.0543.219470
09/131211.27.60.3554550199425.01082429.1543.419470
09/121211.67.80.7547550137468.01202727.2543.519470
09/111212.08.00.9562570253479.01363528.0N/AN/AN/A
09/101212.38.11.0568570235479.01724931.8N/AN/AN/A
09/091212.68.21.1570570441476.02648328.8543.719970
09/081212.88.31.0570570122466.01063229.0N/AN/AN/A
09/071213.28.51.2590600110467.0871731.1N/AN/AN/A
09/061213.78.81.560160090467.0931829.9543.819955
09/051214.29.01.7600600138468.01011928.4N/AN/AN/A
09/041214.69.42.0642650148473.01092127.4N/AN/AN/A
09/031215.19.72.4635650191475.01192229.1N/AN/AN/A
09/021215.59.92.6636650132482.01332529.0544.219955
09/011216.010.12.9639650215494.01522829.8N/AN/AN/A
08/311216.310.43.3642650221508.0175-99999929.1N/AN/AN/A
08/301216.710.63.6645650335511.02293430.0544.519955
08/291217.013.73.8652650484508.03434028.9544.619955
08/281217.210.73.9654660734500.05414229.8N/AN/AN/A
08/271217.210.63.6658660663482.06795127.9N/AN/AN/A
08/261217.210.43.4659660287468.027962N/A544.719955
08/251217.610.53.4657660342465.02006728.2544.819955
08/241217.910.63.5577590465464.026090N/A544.819955
08/231218.010.63.6578590700460.0383149N/AN/AN/AN/A
08/221217.910.43.45415901011448.059023530.8544.822855
08/211217.69.82.8490490441422.026210327.9N/AN/AN/A
08/201217.69.72.7491490382416.03027630.2N/AN/AN/A
08/191217.79.62.6491490573413.044810537.0544.419955
08/181217.79.52.4455490905404.0N/AN/A32.3544.519955
08/171217.49.01.84044001226387.079426531.1544.520655
08/161216.78.11.0402400588363.040410230.2544.319655
08/151216.67.80.64054001010368.063814728.2544.419655
08/141216.07.20.04564601483372.092434229.3N/AN/AN/A
08/131215.16.0-1.0456460463389.015013427.8N/AN/AN/A
08/121215.15.8-1.2466460251395.0973529.8544.019455
08/111215.35.9-0.9435460134406.0962831.1544.119455
08/101215.66.0-0.8500500154437.0952630.5544.219455
08/091216.06.2-0.6494500156509.0901732.2544.219455
08/081216.36.3-0.4495500103626.01011930.5N/AN/AN/A
08/071216.66.4-0.2500500133648.01162128.6N/AN/AN/A
08/061217.06.60.0497500272651.01382531.7N/AN/AN/A
08/051217.26.70.1494500210647.01722829.2543.419455
08/041217.56.70.2518500407648.02383632.7N/AN/AN/A
08/031217.66.70.2512520488643.03595228.1544.719455
08/021217.66.50.1525520646641.05935731.1N/AN/AN/A
08/011217.66.3-0.2523520295638.02064427.1544.819450
07/311217.86.40.1537540249662.01123029.9N/AN/AN/A
07/301218.06.40.2544540255670.01232231.1N/AN/AN/A
07/291218.36.50.3546540195683.01392529.8545.119450
07/281218.66.80.6543540220715.01272932.5545.219950
07/271218.96.80.6568560213714.01523333.7545.319950
07/261219.26.90.8567560300713.01864032.1545.419924
07/251219.57.00.9562560354708.01974432.1545.519924
07/241219.77.11.0578580339701.02394428.6N/AN/AN/A
07/231219.97.11.0582580220697.01673630.6N/AN/AN/A
07/221220.27.21.2578580275699.01624031.2545.819924
07/211220.57.31.4578580274696.01724832.0N/AN/AN/A
07/201220.87.41.6556550311695.02115931.4546.020124
07/191221.07.51.6553550398690.02707832.2546.121924
07/181221.17.41.5543550515683.03149928.5546.222524
07/171221.27.31.4535530735673.044213728.4N/AN/AN/A
07/161221.17.01.25355301139659.0707216N/AN/AN/AN/A
07/151220.66.40.65605301967634.0122044929.8546.523324
07/141219.65.2-0.6494530652583.053518230.3546.522524
07/131219.44.8-0.8409400591579.04198230.6546.522224
07/121219.34.5-0.94554001069580.069812529.9546.622824
07/111218.94.0-1.43784002318570.0135042328.6546.623624
NY Power Authority Comments: The Canal Corporation authorized a return to the Operating Diagram discharge.
07/101217.32.2-3.22964003642514.0243083528.9N/AN/AN/A
07/091214.4-0.9-6.2299400767416.0439168N/AN/AN/AN/A
07/081214.0-1.5-6.8304400230417.01342032.2545.921924
07/071214.1-1.5-6.9302400146439.01302130.5546.021924
07/061214.3-1.5-6.8304400230474.0N/AN/A31.7546.221924
07/051214.4-1.6-6.8305400285550.01982830.8N/AN/AN/A
07/041214.4-1.8-6.9311400427557.02793327.0N/AN/AN/A
07/031214.3-2.1-7.1347400530548.04594528.4N/AN/AN/A
07/021214.1-2.4-7.53094001016535.083370N/AN/AN/AN/A
07/011213.5-3.2-8.2303400497507.02997229.2546.622524
06/301213.3-3.6-8.6307400660497.030811828.8546.721424
06/291213.0-4.0-8.93104001159480.0489404N/AN/AN/AN/A
06/281212.3-4.9-9.9307400186449.016423229.3546.821424
06/271212.4-5.0-9.8307400158451.01012430.8547.019424
06/261212.6-5.0-9.7299400150452.01032532.3N/AN/AN/A
06/251212.8-5.0-9.6304400154454.01173030.5N/AN/AN/A
06/241213.0-5.0-9.6310400236456.01383930.9N/AN/AN/A
06/231213.0-5.1-9.7308400259459.01585630.8547.419924
06/221213.1-5.2-9.6304400206461.01477329.8N/AN/AN/A
06/211213.2-5.3-9.5301400230466.01416931.9547.519924
06/201213.3-5.3-9.6298400173471.01222536.1547.519924
06/191213.5-5.3-9.5296400171479.01402832.8N/AN/AN/A
06/181213.6-5.4-9.6302400230488.01653235.5N/AN/AN/A
06/171213.7-5.5-9.6308400317497.02003934.1547.819924
06/161213.8-5.6-9.5307400369505.02554932.5N/AN/AN/A
06/151213.7-5.8-9.6304400446517.03356133.4N/AN/AN/A
06/141213.6-6.0-9.6308400530525.03827930.5N/AN/AN/A
06/131213.5-6.4-9.9310400611532.043310129.2N/AN/AN/A
06/121213.2-6.9-10.3310400794529.055114728.3N/AN/AN/A
06/111212.8-7.4-10.8309400633520.0443107N/AN/AN/AN/A
06/101212.5-7.9-11.2309400709513.050510129.8548.019924
06/091212.2-8.4-11.6308400782505.059914430.2548.019924
06/081211.8-9.0-12.0329400901503.059815329.2548.020424
06/071211.3-9.6-12.63264001194496.081819129.5548.020624
06/061210.4-10.6-13.63144002498480.0153051429.9547.921924
06/051208.3-13.0-15.8305400502422.042518929.0N/AN/AN/A
06/041208.1-13.4-16.1305400150430.01002130.7N/AN/AN/A
06/031208.3-13.3-16.0306400150453.01132432.0N/AN/AN/A
06/021208.5-13.2-15.6306400173487.01222533.4547.419924
06/011208.7-13.3-15.5303460193531.01342831.8N/AN/AN/A
05/311208.8-13.1-15.3298460161549.01543431.6547.721724
05/301209.0-13.0-15.2295460206557.01544031.8N/AN/AN/A
05/291209.1-12.9-15.1298490257563.01453433.7N/AN/AN/A
05/281209.2-12.8-15.1301490187568.01573433.2N/AN/AN/A
05/271209.4-12.6-14.9364490225579.01723832.8548.021724
NY Power Authority Comments: The Canal Corporation authorized a flow of 300 cfs, to preserve Canal navigation through the end of the Canal season.
05/261209.5-12.4-14.8490490207593.01884032.9548.021725
05/251209.8-12.2-14.6529530315605.02054430.6N/AN/AN/A
05/241210.1-11.9-14.3533530317608.02295030.6548.221925
05/231210.3-11.7-14.1568530375611.02555630.3548.327724
05/221210.6-11.4-13.8581580361617.02676129.4N/AN/AN/A
05/211210.8-11.2-13.7581580411624.02866230.0N/AN/AN/A
05/201211.0-11.0-13.5580580460638.0N/AN/A30.6548.621725
05/191211.1-10.9-13.4578580483639.0N/AN/A28.0N/AN/AN/A
05/181211.3-10.8-13.3683680562646.04158831.9N/AN/AN/A
05/171211.4-10.6-13.1686680743653.048110327.2548.721925
05/161211.4-10.6-13.1692680673660.051912828.9548.721926
05/151211.4-10.5-13.1777770732671.050415827.2N/AN/AN/A
05/141211.5-10.4-13.0777770526687.039411729.2N/AN/AN/A
05/131211.8-10.2-12.7769770517725.03308628.3548.721926
05/121212.0-10.0-12.4772770440799.03357730.5548.721925
05/111212.4-9.6-12.0887890473882.03798929.4N/AN/AN/A
05/101212.8-9.2-11.5972890713909.043510627.4548.821925
05/091213.1-8.9-11.1898890691929.051613928.2548.822226
05/081213.3-8.7-11.0988990727963.053913828.0N/AN/AN/A
05/071213.6-8.4-10.79949907421020.0N/A12227.8N/AN/AN/A
05/061213.8-8.2-10.69979907321030.052810528.0N/AN/AN/A
05/051214.1-8.0-10.49989908401037.063812328.9548.522524
05/041214.2-7.8-10.21203120011811040.079315527.6548.422524
05/031214.3-7.7-10.11210120014861045.0108024629.1548.323324
05/021214.1-7.9-10.2120712007491053.059417228.0N/AN/AN/A
05/011214.5-7.5-9.6127812904021117.02996428.3N/AN/AN/A
04/301215.3N/A-8.6129212903661166.0N/A6127.4N/AN/AN/A
04/291216.2N/A-7.6129512904111200.03396727.7547.921724
04/281216.9N/A-6.7129612905141246.03967829.1547.921724
04/271217.6N/A-5.8139814006641310.047910028.5548.034924
04/261218.2N/A-5.0135814005551335.03738327.9548.034924
04/251218.9N/A-3.8138314004181360.03166327.4N/AN/AN/A
04/241219.7N/A-2.6139114004111406.03456827.0N/AN/AN/A
04/231220.5N/A-1.3140214005311437.03797530.6N/AN/AN/A
04/221221.2N/A0.2140414005901447.03998028.6548.634924
04/211221.9N/A1.6142014008141453.04318528.5548.734924
04/201222.4N/A2.6152215804911457.04779530.6548.850924
04/191223.2N/A4.0158215807001475.052510828.1549.051424
04/181223.9N/A5.1152015807591492.057312130.5549.351424
04/171224.5N/A6.3141414109781523.065014429.7N/AN/AN/A
04/161224.8N/A7.5142714109881572.076618029.6N/AN/AN/A
04/151225.2N/A8.81666141012241636.094022328.8549.752324
04/141225.5N/A9.92094141016491652.0123032431.9549.853224
04/131225.8N/A10.92551140027461656.0186064930.5549.855024
04/121225.7N/A11.51660140029251630.0226078429.7549.061124
04/111224.8N/A11.31403140012971619.087425932.1548.350424
04/101224.9N/A12.11400140012941722.097922829.6N/AN/AN/A
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1 The Elevation Trigger is invoked when Hinckley Reservoir elevation falls below the 10% historical low level. The elevation trigger is 1222 feet in May, 1198 feet October 15 to December 31 and linearly interpolated from 1222 feet on May 31 and 1198 feet on October 15.

2 "Normal" Hinckley Reservoir elevations for a given date are based upon the average of 59 years of daily Hinckley Reservoir elevation data (1942-1979 and 1987-2007).

3 cfs is the abbreviation for cubic feet per second.

4 The 1920 Operating Diagram establishes the rate of release of water from Hinckley Reservoir based upon varying reservoir levels throughout the year. 

5 The Inflow Trigger is invoked when the 30-day running average Hinckley Reservoir inflow is below 300 cfs.

6 The Wilmurt plus Black Creek streamflow represents 80% of the Hinckley watershed area.