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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />SECnONTHREE <br /> <br />ProJect Description <br /> <br />Additional surveying was obtained along the dam crest, outlet works area, and at appurtenant <br />structures. Measurements were also obtained of the dimensions of the intake and outlet <br />structures. <br /> <br />The reservoir level staff gauge on the intake structure was surveyed to correlate the USGS <br />elevation to reservoir gage elevation. Table 3-2 includes a list of elevations/gage readings of key <br />features of the dam and appurtenant structures. <br /> <br />Table 3-2 <br /> <br />SURVEY ELEV A nONS <br /> <br />~lli'\'i'ltl~il.lllt~I~lllf.~I!~ l~ljtt~l.lllIl.tllt !1!III~ll.lllIl'tIIJ <br />Staff Gage Reading 16(1) 16.0 5746.2 <br />Reservoir Gage Reading 0 0.0 5730.2 <br />Top of Intake Structure 32. I 5762.3 <br />48" Gate Invert 10.9 5741 I <br />Intake Structure Invert Elevation - 3.5 5726.7 <br />Outlet Structure Invert Elevation - 3.5 5726.7 <br />Top of Parapet Wall 3 1.8 +/- 5762 +/- <br />Embankment Crest 29.8 +/- 5760 +/- <br />Spillway Invert Elevation at 20.3 +/- 5750.5 +/- <br />Centerline (NHWL) <br />Breach Area Crest 16.9 +/- 5747. 1 +/- <br />NE Corner Section 24 25.3 5755.541 <br /> <br />(1) Datum used for correlation between USGS and Gage elevations. <br /> <br />URS Breiner Woodward Clyde <br /> <br />6800044333.OOIR2.doc 1131/OO(3:18PM)/pROJECTS 3-5 <br />