26' - Many farm levees along Big Creek are overtopped. Flooding of rural areas behind the levees occurs.<br><br>23' - Flooding occurs at the west approach to the N Highway bridge located 0.2 miles west of Blairstown. Flooding also occurs across B Highway near Big Creek which is several miles northwest of Blairstown.<br><br>20' - The west bank of the creek begins to flood.<br><br>