Neshaminy Creek near Langhorne, Bucks County PA (LNGP1)
Gage Location: Bucks County, Pennsylvania	Site Location: Bucks County, Pennsylvania
Latitude: 40.174	Longitude: -74.957	Elevation: 40.57 ft. MSL	Drainage Area: 210 Sq. Mi.
Minor Stage: 9 ft.	Moderate Stage: 10 ft.	Major Stage: 12 ft.
First Flood: 1933-08-23	Last Flood: 2012-12-21 Crest: 10.09 ft.	Datum change: 1934-10-01	Number of Floods: 161

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Month Number of Floods After Datum Number of Floods Total Cumulative Total After Datum Cumulative Total January 22 22 22 22 February 16 16 38 38 March 19 19 57 57 April 16 16 73 73 May 4 4 77 77 June 10 10 87 87 July 11 11 98 98 August 11 12 109 110 September 12 12 121 122 October 8 8 129 130 November 11 11 140 141 December 20 20 160 161 Seasonal Totals Winter (Dec-Jan-Feb) 58 Spring (Mar-Apr-May) 39 Summer (Jun-Jul-Aug) 33 Fall (Sep-Oct-Nov) 31

Codes and description

C1|Crest information looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 08:09 AM Feb 08, 2013