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observe tidal inundation again, almost one year later at a similar tidal event (3.13 vs. <br />3.17 predicted high tides). Any differences in tidal inundation from the previous year <br />could be determined. Also, the channels that breached the roadway and flooded the <br />lots mauka of Waiopae Rd. would be observed to determine if there was a clear <br />delineation where runup gave way to gravity flow, which may be important with <br />regard to defining the shoreline (see later sections of this report). <br /> With regard to the channels crossing the roadway, three distinct channels were <br />observed, with the largest being in the middle of the study area. This is different then <br />on August 17, 2005, when 4 channels were observed. Apparently a greater amount of <br />inundation on July 10, 2006, caused two of the channels to coalesce and make one <br />larger one. For the middle channel, the depth of water reached 16 inches at the <br />highest tide. The channel to the west reached 6 inches in depth, and the one to the <br />east, a little under 2 inches (1 and 15/16 inch) depth. Figure 3-7 shows the level of <br />inundation measured for the July 10, 2006 event. <br />Figure 3-7 - Inundation recorded on July 10, 2006 with the use of one satellite GPS unit. High <br />Tide was 3.13 meters from NOAA tide charts. Wind speed was 9.4 to 11 meters per second and <br />significant wave heights were 2.75 to 2.69 meters as measured from the ocean buoy southeast of <br />Hilo. <br />As far as a difference in inundation, Figure 3-8 compares the inundation for <br />the two different time periods. On this Figure, the difference in inundation is difficult <br />to visualize. From the field however, the difference in inundation was more <br />noticeable. <br />24 <br /> <br />