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U.S. Public Land Survey Monument Record Cityol de Madison o 810149 Center Corner of Section 33, TO8N R10E, Dane County Wisconsin NOTES: 1. Date of field work: Sept 20, 2017 2.This is a found perpetuated monument. Monument(P01) and witness ties(P02-P05) recovered from monument record dated Mar 21, 2007, and witness ties(P06-P08) recovered from monument II 1998, both by Carl Sandnes. My tie measrements agree well with both record dated Nov 30, y Y previous records. Bearing differences are due to different coordinate systems.Two new witness ties pis (P09-P10)were established. ii11��''�� 3. Horizontal coordinates are Dane County Coordinates, U.S. Survey feet, NAD83(2007)datum, `k � . computed from a combined adjustment of total station measurements and RTK GPS measurements from the Emil Street base station (MAON)at 43°02'12.78285"N, 89°24'34.27099"WWift(Easting 814396.30, Northing 469050.00 U.S. Survey feet). The Wisconsin Coordinate Reference : Systems(WISCRS) parameters were used to compute Easting, Northing coordinates. See http://gis.cityofmadison.com/Madison_GPS/and www.sco.wisc.edu Horizontal 95% uncertainty from adjustment=+/-0.04 ft from the base station. 4. Elevations are in the NAVD88(1991) datum (the original adjustment), determined by same adjustment used for horizontal position, using the NAD 83(2011)(EPOCH 2010.00)ellipsoid height of 815.84 ft for the bottom of antenna mount of the Emil St base. The GEOID12(=12A=12B here) geoid model was used to compute NAVD 88(2012) elevations, then 0.17 ft subtracted to get NAVD 88(1991).Vertical 95% uncertainty from adjustment= +/-0.03 ft from the base station. 5. Compared to the county coordinates per 2007 Sandsnes record, my northing is 0.17 ft larger, easting is LINE TABLE& NOTES 0.02 ft larger, and elevation is 0.03 ft smaller. Some of the horizontal difference may be datum shift. Distances are horizontal. POINT TABLE& NOTES Dimensions in italics per Monument dimensions in inches, outside diameter(unless noted) previous records. Elevations for witness monuments are shown to allow verification of section corner monument. Note that witness monuments may not be stable vertically(or horizontally) From To Bearing Distance Pt Northing Easting Elev iMonument P01 P02 N00°12'26"W 44.25 ft Found brass cap on concrete post in N00°36'38"W 44.30 ft P01 497089.64 839461.72 880.86 water box. Cap 0.42 ft below box rim. P01 P03 N86°17'46"E 13.16 ft P02 497133.89 839461.56 n/a Found 3/4in rod against sidewalk N85°54'24"E 13.13 ft Found 3/4in rod against back of curb P01 PO4 S34°29'43"W 11.25 ft P03 497090.49 839474.85 881.05 (elev at top of curb) S33°52'16"W 11.24 ft PO4 497080.37 839455.35 n/a Found 3/4in rod P01 P05 S14°51'36"E 30.53 ft P05 497060.13 839469.55 n/a Found aluminum cap witness S15°13'22"E 30.60 ft P06 497086.83 839474.95 n/a Found loose 1-1/8in pipe P01 P06 S78°00'32"E 13.53 ft P07 497085.78 839501.98 n/a Found 1-1/8in pipe P08 497127.22 839473.17 n/a Found 1-1/8in pipe S72°E 13.60 ft P09 497106.54 839620.18 881.57 Hydrant top nut P01 P07 S84°31'24"E 40.44 ft P10 497225.26 839510.69 887.16 Hydrant top nut S82°E 40.49 ft • 0 P01 P08 N16°56'42"E 39.29 ft N17°E 39.32 ft P01 P09 N83°54'44"E 159.36 ft P01 P10 N19°51'14"E 144.19 ft House Graphical Scale #3922 0 40ft I here by certify that the corner location 470 on this record was determined by or ao�� under my direction and control and that s this US Land Survey Monument Record is correct and complete to the be of my P02 knowledge -.d belie.� Signed: tl. .. . / WI P08 • Sycamore Ave P090 Date: ZZ P01 103 \\\\�\��\t�tC uO► iii��//,�,/ `� S S PO4 • 1=46 •PO `�\\ //� � O DANIEL C. `C RODMAN S-2793 0• P05 = Madison, WI Q- �� House 4/,-' S U Rv�yp\\\\\`�. #3921 IIIIIIIII I I I IIIM�� M:\DESIGN\PARKS\Survey\Sycamore\Section Corner 810150 Tie Sheet 2017.dgn Page 1 of 1 11)8/03300 . ..s0