Clearwater River Watershed District
  • About
    • CRWD History
    • Board of Managers
    • Board Meetings
    • Advisory Committee
    • Staff
    • General CRWD Info
    • Glossary
  • Projects
    • Carp Management 2023-2024
    • Clearwater River Chain of Lakes (1980) Restoration Project >
      • Annandale Wetland Treatment System
      • Kingston Wetland Feasibility Study and Restoration Project
      • Lake Augusta Aeration Project
      • Lake Augusta Erosion Control Project
      • 1980 Monitoring Program
      • Non-Point Source Pollution Abatement (TCCP) Project
      • Upper Lakes Aeration and Mechanical Fish Removal
      • Watkins Wetland Isolation Project
      • Watkins Wetland Treatment System
      • Replacement Projects for Aerators
    • Total Maximum Daily Load (TMDL) Implementation Projects >
      • Alternative Tile Intake Project
      • Clearwater River Channel Stabilization (CCM Riparian) Project
      • Clearwater River Restoration & Protection Phase II Project
      • City of Kimball Stormwater Treatment Phase II
      • Targeted Fertilizer Application Reduction Project
      • Watkins Area Stormwater Treatment Project
      • Willow Creek (Kimball Phase I) Stormwater Retention / Reuse Project
      • Potential Future Implementation Projects
    • Bass Lake AIS Management
    • Clear Lake North V-Notch Weir
    • Clear Lake South Notch Weir
    • Clear Lake IESF
    • Cedar Albion Swartout Henshaw Project #06-1 >
      • CASH Project #06-1 Fish Barriers
      • CASH Project #06-1 Rough Fish Removal
      • CASH Project #06-1 Segner Pond
      • Cedar Lake Watershed Protection & Improvement Project
    • Clearwater Lake Milfoil Treatment
    • CRWD Bog Control Projects
    • Communal Sanitary Sewer Systems >
      • Clearwater Harbor - Hidden River Project #18-1 (Nitrogen Mitigation & Analysis Plan Implementation)
    • Lake Augusta Aquatic Invasive Species (AIS) Project
    • Lakes Louisa & Marie Aquatic Invasive Species (AIS) Project
    • Norton Avenue Basin
    • Ostmark Basin
    • Pleasant Lake Outlet Control Structure
    • Cedar Lake Aquatic Invasive Species (AIS) Project
    • School Section Lake Outlet Control Structure
    • Wastewater Treatment Task Force
  • Programs
    • Water Quality Monitoring Program
    • Invasive Species
    • AIS Education >
      • 2025 AIS Forum
      • 2023 AIS Forum
      • 2022 AIS Forum
    • Grants & Cost Share Programs
  • Resources
    • CRWD 10 Year Watershed Plan
    • Board Meeting Minutes
    • CRWD Rules & Regulations
    • Policy Book
    • Annual Reports
    • Audit Reports
    • CRWD Brochures
    • Project Reports
    • Total Maximum Daily Load Reports
    • Water Quality Monitoring Reports >
      • Grass Lake Dam Readings
    • Project Inspection Reports
  • Lake Report Cards
  • How You Can Help
    • Landowner Resources >
      • Agricultural Incentives
      • Residential / Commercial Incentives
      • Partnership Incentives
    • Increase your knowledge
    • Join a Lake Association
  • Contact

2025 Grass Lake Dam Readings
​& Water Level Updates

2025 Updates:

Picture
07/10/2025: As of 10am, Grass Lake elevation is 992.57. 
07/02/2025:
As of 1pm, Grass Lake elevation is 992.60. 
6/27/25: Water surface elevations have been rising with the rain over the week, and as of 8am Grass Lake elevation is 992.24. The Pleasant Lake outlet has been closed. 
6/22/2025: As of 7pm, Grass Lake elevation is 992.07. ​
6/22/2025: As of 11am, Grass Lake elevation is 992.03. 
6/21/2025: As of 10am, Grass Lake elevation is 991.97. 
06/20/2025: As of 8am, Grass Lake elevation is 991.86
06/19/2025: As of 9am, Grass Lake elevation is 991.78. 
06/18/2025: As of 4:30pm, Grass Lake elevation is 991.72. 
06/18/2025: As of 8am, Grass Lake elevation is 991.68. 
06/17/2025: As of 12:45pm, Grass Lake elevation is 991.61. 
06/16/2025: As of 3pm, Grass Lake elevation is 991.43. 
06/15/2025: As of 8am, Grass Lake elevation is 991.36. 
06/13/2025:
As of 8am, Grass Lake elevation is 991.21. Water surface elevation began to rise again at noon yesterday, staff will be monitoring the lake level closely as rain continues in the area. 
06/09/2025: As of 9am, Grass Lake elevation is 991.21. 
06/02/2025: As of 9am, Grass Lake elevation is 991.32
​05/27/2025: As of 2pm, Grass Lake elevation is 991.41
05/21/2025: As of 3:50pm, the gauge reading elevation at Grass Lake Dam is 991.25
05/20/2025: As of 1pm, Grass Lake elevation is 991.13
05/16/2025: As of 9am, Grass Lake elevation is 991.19
05/13/2025: As of 12:30pm, Grass Lake elevation is 991.07
05/07/2025: As of 3pm, Grass Lake elevation is 991.10
05/02/2025: As of 4pm, Grass Lake elevation is 991.18
​04/29/2025:
As of 3pm, Grass Lake elevation is 991.17
04/23/2025: As of 12pm, Grass Lake elevation is 991.15
Grass Lake Dam on 05/13/2025
06/17/2025: Grass Lake Dam
Picture
The CRWD watches the lake level near the dam on Grass Lake because a DNR permit requires the watershed to close the outlet at Pleasant Lake when the elevation at Clearwater Lake reaches 992.13'. This is called the "cutoff" elevation. We can have a good estimate at what the Clearwater Lake elevation is based on the info at Grass Lake since they are connected by a channel. The water level at the Grass Lake Dam site is monitored continuously from approximately May to October each year. We use a device called a pressure transducer which is hooked up to an antenna and this sends us the data once per hour.  We also have a staff gauge (a fancy term for a ruler) attached to the dam where we can verify that the information we are getting from the transducer is accurate.

The Ordinary High Water level (OHW) on Clearwater Lake is 991.3' and on Grass Lake is 990.9'.  The OHW is defined as a location around the lake where there is a change in soil and vegetation that shows us where the water usually meets the land. The highest recorded water level on Clearwater Lake was 996' and Grass, it was 995.23'. These both occurred on 6/27/1983.

2022: The rains of mid-May in 2022 caused water levels to rise rapidly. After a peak of 993.00' on 5/18/2022, water levels started to recede and have continued to do so at a slow but steady pace.  
In June and early July, floating bogs caused issues at Grass Lake Dam and in Clearwater Lake. The bogs were pulled out from around the dam. Low precipitation has kept lake levels right around the OHW since mid-July 2022.

**All elevation information is being reported in NGVD29 datum. If you use NAVD88 datum, you would add approximately 0.5' to the elevation numbers listed here.

This page is maintained by CRWD Board Managers. 
​
​© Copyright 2020
Board Meetings
Third Wednesday of the month at 6pm
​
Special and emergency meetings may be called. Such meetings will be properly notice per MN Statutes. 
Clearwater River Watershed District 
93 Oak Avenue South, Suite 5
Annandale, MN 55302

Mailing Address:
3235 Fernbrook Ln N
​Minneapolis, MN 55447
Website created by Skol Marketing
  • About
    • CRWD History
    • Board of Managers
    • Board Meetings
    • Advisory Committee
    • Staff
    • General CRWD Info
    • Glossary
  • Projects
    • Carp Management 2023-2024
    • Clearwater River Chain of Lakes (1980) Restoration Project >
      • Annandale Wetland Treatment System
      • Kingston Wetland Feasibility Study and Restoration Project
      • Lake Augusta Aeration Project
      • Lake Augusta Erosion Control Project
      • 1980 Monitoring Program
      • Non-Point Source Pollution Abatement (TCCP) Project
      • Upper Lakes Aeration and Mechanical Fish Removal
      • Watkins Wetland Isolation Project
      • Watkins Wetland Treatment System
      • Replacement Projects for Aerators
    • Total Maximum Daily Load (TMDL) Implementation Projects >
      • Alternative Tile Intake Project
      • Clearwater River Channel Stabilization (CCM Riparian) Project
      • Clearwater River Restoration & Protection Phase II Project
      • City of Kimball Stormwater Treatment Phase II
      • Targeted Fertilizer Application Reduction Project
      • Watkins Area Stormwater Treatment Project
      • Willow Creek (Kimball Phase I) Stormwater Retention / Reuse Project
      • Potential Future Implementation Projects
    • Bass Lake AIS Management
    • Clear Lake North V-Notch Weir
    • Clear Lake South Notch Weir
    • Clear Lake IESF
    • Cedar Albion Swartout Henshaw Project #06-1 >
      • CASH Project #06-1 Fish Barriers
      • CASH Project #06-1 Rough Fish Removal
      • CASH Project #06-1 Segner Pond
      • Cedar Lake Watershed Protection & Improvement Project
    • Clearwater Lake Milfoil Treatment
    • CRWD Bog Control Projects
    • Communal Sanitary Sewer Systems >
      • Clearwater Harbor - Hidden River Project #18-1 (Nitrogen Mitigation & Analysis Plan Implementation)
    • Lake Augusta Aquatic Invasive Species (AIS) Project
    • Lakes Louisa & Marie Aquatic Invasive Species (AIS) Project
    • Norton Avenue Basin
    • Ostmark Basin
    • Pleasant Lake Outlet Control Structure
    • Cedar Lake Aquatic Invasive Species (AIS) Project
    • School Section Lake Outlet Control Structure
    • Wastewater Treatment Task Force
  • Programs
    • Water Quality Monitoring Program
    • Invasive Species
    • AIS Education >
      • 2025 AIS Forum
      • 2023 AIS Forum
      • 2022 AIS Forum
    • Grants & Cost Share Programs
  • Resources
    • CRWD 10 Year Watershed Plan
    • Board Meeting Minutes
    • CRWD Rules & Regulations
    • Policy Book
    • Annual Reports
    • Audit Reports
    • CRWD Brochures
    • Project Reports
    • Total Maximum Daily Load Reports
    • Water Quality Monitoring Reports >
      • Grass Lake Dam Readings
    • Project Inspection Reports
  • Lake Report Cards
  • How You Can Help
    • Landowner Resources >
      • Agricultural Incentives
      • Residential / Commercial Incentives
      • Partnership Incentives
    • Increase your knowledge
    • Join a Lake Association
  • Contact