Lake water level report

Rock - 03029300
Becker County

Water Level Data

Period of record: 07/17/1995 to 05/31/2018
# of readings: 299
Highest recorded: 1441.69 ft (05/20/2009)
Highest known: 1441.9 ft
Lowest recorded: 1438.3 ft (08/25/2008)
Recorded range: 3.39 ft
Last reading: 1440.13 ft (05/31/2018)
Ordinary High Water Level (OHW) elevation: 1440 ft
Datum: NGVD 29 (ft)

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Last 10 years of data, click to enlarge.

Benchmarks

Elevation: 1439.78 ftDatum: NGVD 29 (ft)
Date Set: 06/28/2006Location: T140R40S17
Description: Top right end of right downstream abutment of dam at outlet. (The dam is in very poor condition, but the downstream end of the right abutment appears to be intact).
Elevation: 1441.05 ftDatum: NGVD 29 (ft)
Date Set: 07/12/1995Location: T140R40S17
Description: Found 2008. G & F BM #2 from sounding map B-68, High point of 4' steel culvert at north end of lake connection Rock and Rice lakes.
Elevation: 1446.82 ftDatum: NGVD 29 (ft)
Date Set: 05/15/2008Location: T140R40S20
Description: Found 2018 for use only with prior permission from landowner. 3/8" x 8" spike, 1.0' above ground in East side of light pole between two sheds, approximately 50' from water's edge, at private residence, 24823 Broadway Ave, Detroit Lakes.
Elevation: 1445.37 ftDatum: NGVD 29 (ft)
Date Set: 06/28/2006Location: T140R40S29
Description: At public access, horizontal 3/8" x 8" spike 0.4' above ground in NNE base of a twin ash (both trunks are 0.8'), 64' west of where road into access splits, 48' NE of SW corner of access and 4' SW of a basswood clump. Elevation=1446.36 NAVD 88 as per GPS survey 2/5/15.
Elevation: 1442.61 ftDatum: NGVD 29 (ft)
Date Set: 02/19/1997Location: T140R40S29
Description: At PA on WSW shore of lake, partially bent 3/8 x 8" spk at a 45 deg angle, 0.7' above grd in lkside of a triple birch at W fence boundary of PA, 25-30' W of CL rd leading to boat ramp. Tree appears to be dying, approx 50' from WE.

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