Learn more: Our operations

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Welcome to Rio Tinto's new online community where we want to engage with you about all things Nechako Reservoir.

We want to improve the way we engage with you. We will post frequent updates about our operations, actively listen to your feedback, respond to your questions and increase transparency in how we make decisions.

Your voice matters - so please get involved today!



Welcome to Rio Tinto's new online community where we want to engage with you about all things Nechako Reservoir.

We want to improve the way we engage with you. We will post frequent updates about our operations, actively listen to your feedback, respond to your questions and increase transparency in how we make decisions.

Your voice matters - so please get involved today!



  • Nechako Reservoir Updates - January 21, 2021

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    Reporting Period: January 15 to January 21, 2021

    • Reservoir level has decreased in the past 7 days from 2797.80 feet to 2797.65 feet.
    • Skins Lake Spillway discharge increased from 84 m3/s to 85 m3/s in the past 7 days.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Nineteen (19) mm of precipitation was observed last week and six (6) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please also see the public safety announcement from the District of Vanderhoof at http://www.vanderhoof.ca/nechako-river-ice-hazard-warning(External link)


  • Nechako Reservoir Updates - January 14, 2021

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    Reporting Period: January 8 to January 14, 2021

    • Reservoir level has decreased in the past 7 days from 2798.06 feet to 2797.80 feet.
    • Skins Lake Spillway discharge remains unchanged at 84 m3/s in the past 7 days.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Thirty (30) mm of precipitation was observed last week and eleven (11) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please also see the public safety announcement from the District of Vanderhoof at http://www.vanderhoof.ca/nechako-river-ice-hazard-warning
  • Nechako Reservoir Updates - January 7, 2021

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    Reporting Period: December 31 to January 7, 2020

    • Reservoir level has decreased in the past 8 days from 2798.20 feet to 2798.06 feet.
    • Skins Lake Spillway discharge decreased from 85 m3/s to 84 m3/s in the past 8 days.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Forty-eight (48) mm of precipitation was observed last week and nine (9) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please also see the public safety announcement from the District of Vanderhoof at http://www.vanderhoof.ca/nechako-river-ice-hazard-warning
  • Nechako Reservoir Update - December 30, 2020

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    Reporting Period: December 24 to December 30, 2020

    • Reservoir level has decreased in the past 7 days from 2798.42 feet to 2798.20 feet.
    • Skins Lake Spillway discharge remains unchanged and is currently 85 m3/s.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Nine (9) mm of precipitation was observed last week and twenty-two (22) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please also see the public safety announcement from the District of Vanderhoof at http://www.vanderhoof.ca/nechako-river-ice-hazard-warning(External link)


  • Nechako Reservoir Update - December 23, 2020

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    Reporting Period: December 18 to December 23, 2020

    • Reservoir level has decreased in the past 6 days from 2798.50 feet to 2798.42 feet.
    • Skins Lake Spillway discharge remains unchanged and is currently 85 m3/s.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Twenty-two (22) mm of precipitation was observed last week and six (6) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
  • Nechako Reservoir Update - December 17, 2020

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    Reporting Period: December 12 to December 17, 2020

    • Reservoir level has decreased in the past 7 days from 2798.55 feet to 2798.50 feet. The Nechako Reservoir is currently 88% full.
    • Skins Lake Spillway discharge is currently 85 m3/s.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Fourteen (14) mm of precipitation was observed last week and fifteen (15) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please also see the public safety announcement from the District of Vanderhoof at http://www.vanderhoof.ca/nechako-river-ice-hazard-warning


  • Nechako Reservoir Update - December 11, 2020

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    Reporting Period: December 4 to December 11, 2020

    • Reservoir level increased in the past 8 days from 2798.40 feet to 2798.55 feet.
    • Due to continuing high inflow, Skins Lake Spillway discharge was increased from 71 m3/s to 85 m3/s on December 11, 2020. Water level in the Nechako River will gradually increase by approximately 10cm over the next week.
    • As previously noted in these updates, Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Additional changes to Spillway discharge may be required through the winter.
    • Fifty-one (51) mm of precipitation was observed last week and seven (7) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please see below graphs for elevation and flow projections.

  • Nechako Reservoir Update - December 3, 2020

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    Reporting Period: November 27 to December 3, 2020

    • Reservoir level is unchanged in the past 7 days at 2798.40 feet.
    • Skins Lake Spillway discharge increased from 70 m3/s to 71 m3/s in the past 7 days.
    • Sixty-two (62) mm of precipitation was observed last week and eighteen (18) mm of precipitation is expected for next week.
    • Ice has begun to form on many parts of the Nechako River which prevents accurate measurement of discharge. Discharge will be reported again in the Spring.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
  • Nechako Reservoir Update - November 26, 2020

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    Reporting Period: November 20 to 26, 2020

    • Reservoir level has decreased in the past 7 days from 2798.41 feet to 2798.40 feet.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • Skins Lake Spillway discharge increased from 60 m3/s to 70 m3/s in the past 7 days. Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack.
    • The increase in spillway discharge will not cause water level in the Nechako River to increase. The water level in the Nechako River will continue to decrease.
    • Nechako River flow discharge changes in the past 7 days at various locations are as follows:
      • Flow at Nautley remains unchanged at 32 m3/s.
      • Flow at Vanderhoof decreased from 156 m3/s to 127 m3/s.
      • Flow at Cheslatta Falls decreased from 103 m3/s to 80 m3/s.
    • Fifteen (15) mm of precipitation was observed last week and thirty-four (34) mm of precipitation is expected for next week.
    • You can monitor continuous reservoir elevation by clicking here(External link)(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please see graphs below for elevation and flow projections. To view real-time and historical information on reservoir activity, click here(External link)(External link).

  • Nechako Reservoir Updates - November 19, 2020

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    Reporting Period: November 13 to 19, 2020

    • Reservoir level has increased in the past 7 days from 2798.34 feet to 2798.41 feet.
    • Ice jams sometimes form during freeze up. Be cautious around the river, and particularly in low lying areas. If you notice an ice jam form, please notify Rio Tinto immediately by emailing NechakoReservoirUpdates@riotinto.com.
    • Skins Lake Spillway discharge was reduced 60 m3/s on November 10 where it remains as of November 19 to allow water level in the Nechako River to decrease before freeze-up in order to reduce the risk of ice jams and flooding.
    • Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack.
    • Nechako River flow discharge changes in the past 7 days at various locations are as follows:
      • Flow at Nautley increased from 28 m3/s to 32 m3/s.
      • Flow at Vanderhoof decreased from 222 m3/s to 156 m3/s.
      • Flow at Cheslatta Falls decreased from 175 m3/s to 103 m3/s.
    • Forty-nine (49) mm of precipitation was observed last week and seventeen (17) mm of precipitation is expected for next week.
    • You can monitor continuous reservoir elevation by clicking here(External link). Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
    • Please see graphs below for elevation and flow projections. To view real-time and historical information on reservoir activity, click here(External link).


Page last updated: 17 September 2021, 09:18