MARYLAND GEOLOGICAL SURVEY 287 



Estimated Monthly Discharge of Susquehanna Kiver at Harrisburg, Pa. 





DISCHARGE IN SECOND-FEET. 



TOTAL IN 

 ACRE-FEET. 



RUN-OFF. 



MONTH. 



Maximum. 



Minimum. 



Mean. 



Depth in 

 inches. 



Second-feet 



per square 



mile. 



1900 



January 



February 



March 



April 



177,050 



161,835 



196,740 



93,815 



35,400 



19,800 



10,100 



10,100 



7,830 



8,475 



195,845 



94,710 



11,125 



12,700 



23,400 



35,400 



13,100 



7,830 



5,475 



3,035 



2,364 



2,670 



4,420 



13,900 



57,229 



64,337 



68,044 



58,380 



19,466 



13,629 



7,550 



5,394 



3,931 



4,554 



24,005 



37,041 



3,518,874 



3,573,095 



4,183,862 



3,473,852 



1,196,917 



810,982 



464,231 



331,664 



233,911 



280,015 



1,428,397 



2,277,562 



2.75 

 2.79 

 3.27 

 2.71 

 0.93 

 0.64 

 0.36 

 0.25 

 0.18 

 0.22 

 1.12 

 1.78 



2.38 

 2.68 

 2.83 

 2.43 



May 



0.81 



June 



0.57 



July 



0.31 



August 



September .... 



October 



November 



December 



0.22 

 0.16 

 0.19 

 1.00 

 1.54 



The year. . 



196,740 



2,364 



30,297 



21,773,362 



17 . 00 



1.26 



Measurements of now of a number of the chief tributaries of the 

 Susquehanna have also been made by the IT. S. Geological Survey. 

 North Branch has been systematically measured at Wilkesbarre and 

 at Danville, Pennsylvania, and the West Branch at Allenwood, Penn- 

 sylvania. The Wilkesbarre station was established March 30, 1897, 

 and the Danville and Allenwood stations, March 25, 1899. Juniata 

 river, which rises in Center county, Pennsylvania, and flows into the 

 Susquehanna about 15 miles above Harrisburg, has been measured 

 since March 21, 1899, at Newport, about 15 miles above the junc- 

 tion of the river with the Susquehanna. 



