USGS Water-Year Summary for Site 04100180

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	00065 Gage height(Obs.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

04100180 SYLVAN LAKE AT ROME CITY, IN

LOCATION - Lat 41°29'53", long 85°22'38" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SW 1/4 sec.09, T.35 N., R.10 E., Noble County, IN, Hydrologic Unit 04050001, (ALBION, IN quadrangle), on outlet channel at the extreme western- most end of the lake and at the north edge of Rome City on west side of State Road 9.

DRAINAGE AREA - 33.8 mi².

REVISIONS HISTORY - WDR-IN-10-1: 1990-95, WDR-IN-13-1 (M). Lake levels previously published from 1990 to 1995 were found to be in error by -3.00 ft. Extremes for the period also were affected.

SURFACE-WATER RECORDS

PERIOD OF RECORD - 1943 to current year.

GAGE -

A water-stage recorder is installed in an aluminum shelter over a 15-inch diameter stilling well. An auxiliary staff gage is attached to the wall of the dam at same site.

DATUM OF GAGE.--Land-surface datum is 906.51 ft above the North American Vertical Datum of 1988 or 907 ft above National Geodetic Vertical Datum of 1929. Prior to Oct. 1, 1978, the datum of the gage was 910.00 ft. All levels listed below are at the NGVD29 datum.

SURFACE AREA.--669 acres.

ESTABLISHED LEGAL LEVEL.--9.20 ft present gage datum or 916.20 ft above National Geodetic Vertical Datum of 1929 as decreed on June 14, 1951, by the Noble County Circuit Court.

LAKE-LEVEL CONTROL.--The level of the lake is controlled by a concrete dam with movable gates.

INLET AND OUTLET.--Barr Lake, 0.2 mi upstream, empties into Sylvan Lake on the southeast shore of the northwest lobe. Oviatt Ditch and Henderson Lake Ditch both enter the lake on the extreme eastern end. The outlet flows from the lake at the western tip, into Jones Lake 2.8 mi downstream and eventually into the North Branch of the Elkhart River.

EXTREMES FOR PERIOD OF RECORD - Maximum stage, 11.14 ft Aug. 22 and 23, 1996, March 13-14, 2009; minimum stage, 2.71 ft, revised, Oct. 3-9, and 16-18, 1994.