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What is a Watershed? <br /> A watershed is an area of land that drains into a stream or lake. It is defined by the landscape and the <br /> topography of the land. <br /> - ���. <br /> Watershed Details � �, �r � � � <br /> • Big and Long Creeks drains 32,800 acres or #� � h �n� � =f <br /> about 51.2 square miles to Lake Decatur. -.� <br /> � .r <br /> • The main channel of Big Creek is ' y -�'A �'°P'a"d <br /> :Grassland 8 Woodland <br /> approximately 12.9 miles long and Long �,ba�o�b�;,t-�P,a�d <br /> Creek is approximately 9.6 miles long. Other <br /> perennial but unnamed channels account for <br /> 8.7 miles. Altogether the stream mileage in <br /> the water�hed t�tals ahrn�t 31.2 miles. <br /> • 87.9 % of the watershed is cropland, 5.9% is grassland and woodland, 7.2% is urban or built up land. <br /> • City of Decatur and Villages of Mount Zion and Long Creek are located within the watershed. <br /> Big and Long Creek Stream Map <br /> l <br /> � s <br /> ,n ,,,�- <br /> � � � � <br /> , ` <br /> � Decatur Lan Creek �1 <br /> g <br /> � } Stream # EUA 01 <br /> � /�� � : <br /> i � r� F <br /> � � ', <br /> 4 <br /> g Gr k �� <br /> Illinois State Water Survey's ' � <br /> Monitoring Station <br /> �r Twin Bridge Road -� <br /> J � . ' <br /> � Mou � <br /> � Big Creek <br /> ' Stream # EU 01 <br /> r � , <br /> / r , � �,�.-.. <br /> � � � ' , <br /> �� � <br /> � <br /> �,.� % __ . <br /> � a � <br /> � , <br /> 3 <br />