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MLBK1 : Marion Lake

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Current Readings

  • 0.51 ft ABOVE normal
  • Pool elevation is 1351.01 feet on 11JUL2025 19:00 hours.
  • At this elevation the total amount of water stored in Marion Lake is 80141 acre-feet.
  • Reservoir release is 257 cubic feet per second on Friday 11Jul2025 19:00.
  • Flood pool is 5.23% full.
  • Flood pool storage filled is 3303 acre-feet which is equivalent to 0.31 inches of runoff over the entire drainage basin.
  • Flood pool storage empty is 59820 acre-feet which is equivalent to 5.61 inches of runoff over the entire drainage basin.

Gate Change

Conditions at the time of Gate Change
  • Friday, 11 Jul 2025 1430
    • Pool Elevation = 1351.04 feet.
    • Total Release = 257 (cfs)
      • Gate Release = 257 (cfs)
    • Gate Settings:
      • 1 Tainter Gates open 0.25 FT
      • 1 Low Flow Gates open 20.0 PERCENT

Evaporation Data

  • 0.501 inches - 11JUL2025 @ 07:00

Reservoir Data

Elevation Incremental Storage Cumulative Storage
(feet) (inches of runoff)* (acre-feet) (inches of runoff)* (acre-feet)
Surcharge Pool: 1360.00 1.62 17250 14.74 157210
Flood Control Pool: 1358.50 5.92 63123 13.12 139960
Conservation Pool: 1350.50 7.20 76836 7.20 76837
Inactive Pool: 1320.00 0.00 0 0.00 0

Streambed Elevation: 1301.00 feet.
Top of Dam Elevation: 1368.00 feet.
* Values in the above "inches of runoff" column are based on a contributing drainage area of 200.0 square miles.
Longitude: -97° 4' 55 Latitude: 38° 22' 20
Map of Marion Lake Dam

Graphs

of Measured and Calculated Lake Parameters
View 24H and 7Day Graphs (Enlarged)
Lake Graph
Elevation
Tailwater
Precipitation
In Flow
Out Flow
Storage

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Disclaimer:These pages are subject to change.Last Page Update: Friday, 11 Jul 2025 19:32