Lake water level report

Sweeney-Twin - 27003500
Hennepin County

Water Level Data

Period of record: 08/19/1958 to 04/21/1999
# of readings: 347
Highest recorded: 829.3 ft (04/09/1979)
Lowest recorded: 826.26 ft (08/19/1958)
Recorded range: 3.04 ft
Last reading: 828.07 ft (04/21/1999)
Ordinary High Water Level (OHW) elevation: 827.7 ft
Datum: NGVD 29 (ft)

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Last 10 years of data, click to enlarge.

Benchmarks

Elevation: 831.07 ftDatum: NGVD 29 (ft)
Date Set: 03/14/1996Location: T29R24S18
Description: Horizontal 3/8" x 8" spike, 0.8' above ground, in the SW side of twin Ash (0.9' & 1.0', 1.4' common base), 53' NE of left end of concrete weir, 43' South of entrance road to medical buildings, at the outlet on N-NE side of lake.
Elevation: 832.4 ftDatum: NGVD 29 (ft)
Date Set: 03/14/1996Location: T29R24S18
Description: 1" round head of an in-place steel bolt on top of the NW abutment of the wooden bridge over Twin Lake, 1.5' NW of the NW corner of the bridge deck and directly above the NWerly pier. Head is almost flush with the top of the abutment. Elevation = 832.40.
Elevation: 832.44 ftDatum: NGVD 29 (ft)
Date Set: 03/14/1996Location: T29R24S19
Description: Top north end of large concrete culvert at inlet under railroad grade.
Elevation: 827.5 ftDatum: NGVD 29 (ft)
Date Set: 07/27/1999Location: T118R24S18
Description: Northwest corner of the control structure. North of Golden Valley Road along the west side of Hidden Lakes Drive.

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