Sherman Creek at Shermans Dale, Perry County PA (SMDP1)
Gage Location: Perry County, Pennsylvania	Site Location: Perry County, Pennsylvania
Latitude: 40.323	Longitude: -77.169	Elevation: 422.63 ft. MSL	Drainage Area: 200 Sq. Mi.
Minor Stage: 9 ft.	Moderate Stage: 11 ft.	Major Stage: 16 ft.
First Flood: 1843-09-01	Last Flood: 2012-10-31 Crest: 9.64 ft.	Datum change: 1930-01-29	Number of Floods: 76

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1843-09-01 -9999 -9999 Missing *** 1846-03-16 -9999 -9999 Missing *** 1860-05-11 -9999 -9999 Missing *** 1867-02-15 -9999 -9999 Missing *** 1927-07-22 20.34 44000 Major *** 1933-08-24 14.05 22300 Moderate none 1934-09-17 9.06 8060 Minor none 1934-12-01 12.28 16700 Moderate none 1936-03-12 10.28 11000 Minor none 1937-04-27 9.87 9330 Minor none 1937-11-13 9.43 8360 Minor none 1942-05-22 11.14 11800 Moderate none 1942-12-30 9.02 7620 Minor none 1946-05-27 10.22 9930 Minor none 1950-11-25 11.48 12700 Moderate none 1950-12-04 9.48 8380 Minor none 1952-03-11 13.59 17800 Moderate none 1952-11-22 11.51 12700 Moderate none 1953-03-24 9.46 8380 Minor none 1953-05-26 9.71 8780 Minor none 1955-08-13 9.07 6260 Minor none 1955-10-14 10.9 10000 Minor none 1956-11-02 12.75 18300 Moderate none 1962-03-06 9.01 -9999 Minor (1) 1966-02-13 10.15 10600 Minor none 1968-05-29 10.13 10500 Minor none 1970-04-03 10.14 10500 Minor none 1970-07-10 9.88 9880 Minor none 1972-03-03 9.26 6040 Minor none 1972-06-23 18.09 27500 Major none 1975-09-26 11.23 9190 Moderate none 1975-10-18 10.66 8150 Minor none 1976-10-09 14.15 15500 Moderate none 1978-01-10 9.45 7110 Minor none 1978-05-15 10.14 8360 Minor none 1978-08-04 9.78 7800 Minor none 1979-01-24 12.02 11400 Moderate none 1979-02-25 11 -9999 Moderate (1) 1979-02-26 9.21 6820 Minor none 1980-03-21 9.93 7880 Minor none 1980-04-09 9.44 7120 Minor none 1981-02-23 10.96 9580 Minor none 1983-12-13 9.82 7710 Minor none 1984-02-14 16.1 20300 Major none 1986-03-15 9.45 7140 Minor none 1989-06-21 12.25 11900 Moderate none 1989-07-13 9.45 7140 Minor none 1989-07-16 12.57 12500 Moderate none 1990-10-13 10.05 8050 Minor none 1990-10-23 9.24 6810 Minor none 1993-04-01 10.06 8070 Minor none 1993-11-28 11.42 10400 Moderate none 1995-01-20 9.82 7420 Minor none 1996-01-19 11.7 10600 Moderate (E) (4) 1996-01-27 11.7 10600 Moderate (E) (4) 1996-09-07 14.56 16700 Moderate none 1996-09-13 11.42 10100 Moderate none 1997-09-11 10.52 8520 Minor none 1997-11-08 10.06 7790 Minor none 1998-01-08 9.75 7310 Minor none 2003-12-11 11.37 9970 Moderate none 2004-09-18 16.31 21700 Major none 2005-03-29 9.68 7200 Minor none 2005-04-02 9.36 6730 Minor none 2005-11-30 9.37 6750 Minor none 2006-06-28 11.83 10800 Moderate none 2008-03-05 11.38 9990 Moderate none 2009-05-29 13.66 14500 Moderate none 2010-01-25 10.62 8680 Minor none 2010-12-01 10.22 9920 Minor none 2011-03-11 11.82 13000 Moderate none 2011-04-17 11.67 12700 Moderate none 2011-09-07 11.04 11500 Moderate none 2011-09-10 10.21 9900 Minor none 2011-11-23 9.54 8670 Minor none

MARFC Codes
Code Description
(!!!) Datum changed during this year.
(1) Backwater Effect.
(2) 15.77 ft also occurred on 11/25/1950 but only counted as one flood.
(3) Estimated from currrent USGS rating table.
(4) Estimated height from the USGS.
(5) Gage height at a different site and/or datum
(6) Discharge affected by Regulation or Diversion
(7) Due to changes, prior floods were based on present flood stage. Therefore, flood data could possibly be incomplete.
(8) Gage is a staff gage and not the offical USGS gage. Therefore, some floods may be missing from our study.
(9) Discharge effected by snow-melt, ice jam or debris jam break up
(A) Discharge affected to unknown degree by regulation or diversion.
(B) Month or day of occurrence is unknown or not exact.
(C) All or part of the record affected by urbanization, mining, agricultural changes, channelization, or other factors.
(D) Crest height adjusted to current datum.
(E) Estimated discharge.
(F) Only annual maximum peak available for this year.
(O) This flood occurred at a previous flood stage that is lower than the current flood stage. This is only a historical flood.
** Crest information looks reasonable despite potential problems. This data was used in our study.
*** Crest information looks unreliable and incomplete and was not used in our flood frequency study.
**** Gauge was discontinued in 2004. 2004 and later was not used in our study.
none No code

Updated: 08:58 AM Jun 28, 2012