Monocacy River at Jug Bridge near Frederick, Frederick County MD (FDKM2)
Gage Location: Frederick County, Maryland	Site Location: Frederick County, Maryland
Latitude: 39.028	Longitude: -77.366	Elevation: 231.92 ft. MSL	Drainage Area: 817 Sq. Mi.
Minor Stage: 15 ft.	Moderate Stage: 17 ft.	Major Stage: 20 ft.
First Flood: 1889-06-01	Last Flood: 2013-01-31 Crest: 17.57 ft.	Datum change: 1929-10-01	Number of Floods: 111

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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1889-06-01 30 56000 Major *** (B) 1929-10-03 16 18500 Minor (E) (4) 1933-08-11 16.08 20300 Minor none 1933-08-24 28.1 51000 Major none 1933-09-17 15.98 20000 Minor none 1934-09-17 21.6 33500 Major none 1934-09-30 15.38 18700 Minor none 1934-12-02 17.2 22800 Moderate none 1936-03-12 16.4 20900 Minor none 1937-04-27 21.7 33800 Major none 1937-11-14 16.75 21800 Minor none 1940-04-21 17.53 23400 Moderate none 1940-09-01 17.85 24100 Moderate none 1940-09-26 16.59 21400 Minor none 1942-05-22 17.4 18100 Moderate none 1942-08-14 20.29 27900 Major none 1942-10-16 16.97 19700 Minor none 1942-12-30 16.57 18800 Minor none 1943-05-21 18.74 24600 Moderate none 1943-11-09 18.05 22900 Moderate none 1944-01-04 19.01 25300 Moderate none 1945-09-19 15.5 16300 Minor none 1945-11-29 17.15 19800 Moderate none 1946-06-03 19.27 24600 Moderate none 1948-01-02 15.43 16100 Minor none 1948-12-31 17.14 19600 Moderate none 1949-01-06 15.66 16700 Minor none 1949-07-13 21.3 29700 Major none 1949-07-19 16.07 17500 Minor none 1950-03-23 15.09 15500 Minor none 1950-12-05 17.3 20100 Moderate none 1952-03-11 17.76 21200 Moderate none 1952-04-27 18.41 22500 Moderate none 1952-11-22 17.73 21000 Moderate none 1955-03-23 16.17 17700 Minor none 1955-08-13 15.98 17300 Minor none 1957-12-21 16.41 18200 Minor none 1957-12-27 15.33 16000 Minor none 1965-03-06 17.15 19700 Moderate none 1966-02-14 15.63 16600 Minor none 1966-09-15 18.34 22400 Moderate none 1967-03-08 18.42 22600 Moderate none 1970-04-15 15.27 15800 Minor none 1970-07-10 16.48 18300 Minor none 1972-06-23 35.9 81600 Major none 1973-12-27 16.28 17900 Minor none 1974-03-31 15.55 16400 Minor none 1975-03-20 15.93 17200 Minor none 1975-09-26 30.8 61200 Major none 1976-10-10 25.38 43500 Major none 1977-04-05 16.64 20200 Minor none 1978-01-27 20.33 29100 Major none 1978-03-27 15.72 18300 Minor none 1979-01-25 20.25 28900 Major none 1979-02-26 19.4 26800 Moderate none 1979-09-06 22.03 33700 Major none 1979-10-02 16.57 20100 Minor none 1980-03-22 17.34 21800 Moderate none 1983-04-11 19.34 26600 Moderate none 1983-04-16 17.15 21400 Moderate none 1983-12-14 18.24 23900 Moderate none 1984-02-15 20.01 28300 Major none 1984-03-29 16 19300 Minor none 1985-02-13 19.38 26700 Moderate none 1987-11-30 18.28 22900 Moderate none 1988-05-19 18.47 23300 Moderate none 1989-05-07 17.04 20000 Moderate none 1990-10-24 15.18 16000 Minor none 1992-11-23 15.21 16100 Minor none 1992-12-12 16.99 19900 Minor none 1993-03-05 18.41 23200 Moderate none 1993-03-24 17.68 21500 Moderate none 1993-04-17 15.32 16300 Minor none 1993-11-29 20.13 27500 Major none 1993-12-06 20.64 28800 Major none 1995-01-21 16.18 18100 Minor none 1996-01-20 23.67 37400 Major none 1996-01-28 16.32 18400 Minor none 1996-06-20 22.54 34100 Major none 1996-09-07 17.74 21600 Moderate none 1996-10-19 16.7 19300 Minor none 1996-12-14 18.15 22600 Moderate none 1998-01-09 17.79 21700 Moderate none 1998-02-18 15.17 16000 Minor none 1998-03-21 17.74 21600 Moderate none 2000-03-22 16.43 18700 Minor none 2000-12-18 15.89 17500 Minor none 2003-01-02 15.17 16025 Minor none 2003-05-17 15.86 17450 Minor none 2003-06-08 15.1 15885 Minor none 2003-09-24 19.71 24100 Moderate none 2003-12-12 20.92 27400 Major none 2004-02-07 16.35 18492 Minor none 2004-09-29 17.65 19100 Moderate none 2005-01-15 16.98 17600 Minor none 2005-03-29 15.69 15100 Minor none 2005-04-03 17.43 18600 Moderate none 2006-06-28 15.29 18100 Minor none 2007-03-03 17.07 17800 Moderate none 2008-05-13 17.04 18000 Moderate none 2008-12-12 16.54 17100 Minor none 2009-12-27 18.12 20300 Moderate none 2010-01-26 16.71 17400 Minor none 2010-03-14 16.92 17800 Minor none 2011-03-07 16.01 16100 Minor none 2011-03-11 16.94 17800 Minor none 2011-04-17 20.61 26300 Major none 2011-09-09 17.04 18000 Moderate none 2011-11-23 20.24 25300 Major 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