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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
04057812 GREENWOOD AFTERBAY NEAR GREENWOOD, MI
LOCATION - Lat 46°26'32", long 87°48'02" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.27, T.47 N., R.28 W., Marquette County, MI, Hydrologic Unit 04030110, at control structure on Middle Branch Escanaba River, 3.7 mi southwest of Greenwood.
DRAINAGE AREA - 67.4 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - March 1999 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,400.14 ft above NAVD 88, converted on July 9, 2020 from NVGD 29 (levels by Cleveland-Cliffs Inc.).
REMARKS - Flow completely regulated by four valve outlet structure from Greenwood Reservoir (station 04057811) immediately upstream. Capacity of afterbay, 420 acre-ft at elevation 1,480 ft. Two outlet systems provide for diversion for use in iron ore processing and for release flow. Diverted flow to Green Creek gaged at Greenwood Diversion (station 04057813); released flow to Middle Branch Escanaba River gaged at Greenwood Release (station 04057814).
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 81.61 ft, Apr. 17, 2002; minimum daily, 79.22 ft, Sept. 21, 2001.
