YADKI-012 Final Report

DAM HYDRAULIC CAPACITY
ASSESSMENT REPORT
(DRAFT)
DEEP CREEK WS #15B (PL-566)
YADKI-012
YADKIN COUNTY, NC
PREPARED BY:
HDR Engineering Inc. of the
Carolinas under contract with
WOOD E&I Solutions
2020

EXECUTIVE SUMMARY
A hydraulic capacity analysis was completed for the Deep Creek WS #15b (Pl -566) in Yadkin
County, North Carolina. The purpose of the study was to analyze the existing potential of the dam
for overtopping during predetermined specified rainfall events using the North Carolina Dam
Safety defined process and templates. The analyses were completed using the United States
Army Corps of Engineers developed software Hydrologic Engineering Center – Hydrologic
Modeling System (HEC-HMS) in combination with Arc-GIS to develop required input parameters.
The rainfall events included in the analyses consist of 24-hour durations with return periods of
25 years, 50 years, 100 years, 200 years, 500 years and 1000 years. Results of the analyses
indicate that this structure is hydraulically adequate for 25 years, 50 years, 100 years, 200 years,
and 500 years rainfall events. Data, input parameters, and final results can be found on the
attached summary sheets and in the appendices of this report as well as in the associated
electronic file in which all program files are stored.
Drainage Area (Sq. Mi.)=
Curve Number =
Lag Time (min.)=
Rainfall Distribution Methods =
481.3
377.7
394.0
410.8
427.9
445.3
463.1
929.9
930.4
930.9
931.4
931.9
ELEVATION
927.4
927.9
928.4
928.9
929.4
18.4
22.0
25.9
STORAGE (ACRE-FT)
0.0
2.1
4.1
6.4
8.9
11.8
15.0
911.4
908.4
908.9
909.4
909.9
910.4
910.9
919.5
921.6
ELEVATION
906.9
907.4
907.9
STORAGE (ACRE-FT)
330.6
345.9
361.6
71.58
54
SCS Type 2
SPILLWAY
Primary
Auxiliary
TYPE
Riser / Barrel
Grass Lined Trapezoidal Channel
ELEVATION
24 HOUR - 200 YEAR EVENT, 8.82 INCHES, ELEVATION 922.9 (0.9 FT FREE-BOARD)
24 HOUR - 100 YEAR EVENT, 7.9 INCHES, ELEVATION 922.4 (1.4 FT FREE-BOARD)
24 HOUR - 50 YEAR EVENT, 7.03 INCHES, ELEVATION 921.7 (2.1 FT FREE-BOARD)
24 HOUR - 25 YEAR EVENT, 6.18 INCHES, ELEVATION 920.5 (3.3 FT FREE-BOARD)
SUMMARY OF INPUT PARAMETERS
1.37
SUMMARY SHEET OF HYDRAULIC CAPACITY RESULTS
DEEP CREEK WS #15B (PL-566), YADKI-012
ANALYSIS PERFORMED BY: S. MURPHY, HDR
24 HOUR - 1000 YEAR EVENT, 11.1 INCHES, ELEVATION 924 (0.2 FT OVER-TOPPED)
TOP OF DAM ELEVATION = 923.8
24 HOUR - 500 YEAR EVENT, 10.1 INCHES, ELEVATION 923.5 (0.3 FT FREE-BOARD)
YADKI-012DEEP CREEK WS #15B (PL-566)DECEMBER 3, 2020
1398.2
NOT TO SCALE
1154.9
1193.1
1232.2
1272.3
1313.3
1355.2
942.7
976.1
1010.3
1045.3
1081.0
1117.5
758.4
787.3
816.9
847.2
878.3
910.1
608.4
631.7
655.6
680.0
705.0
730.6
499.9
520.5
541.7
563.4
585.7
944.9
945.4
945.9
946.4
946.9
941.9
942.4
942.9
943.4
943.9
944.4
938.9
939.4
939.9
940.4
940.9
941.4
935.9
936.4
936.9
937.4
937.9
938.4
932.9
933.4
933.9
934.4
934.9
935.4
932.4
272.9
286.8
301.1
315.7
196.2
208.2
220.4
233.0
246.0
259.3
132.4
142.1
152.1
162.6
173.5
184.7
82.7
90.0
97.7
105.7
114.2
123.1
44.8
50.4
56.3
62.5
68.9
75.7
30.1
34.7
39.6
926.4
926.9
923.4
923.9
924.4
924.9
925.4
925.9
920.4
920.9
921.4
921.9
922.4
922.9
917.4
917.9
918.4
918.9
919.4
919.9
914.4
914.9
915.4
915.9
916.4
916.9
911.9
912.4
912.9
913.4
913.9
YADKI-012DEEP CREEK WS #15B (PL-566)DECEMBER 3, 2020

APPENDIX A
Watershed Boundary

Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P,NRCan, Esri Japan, METI, Esri China (Hong Kong), Esri Korea,Esri (Thailand), NGCC, (c) OpenStreetMap contributors, and theGIS User Community
Deep Creek WS #15b (PI-566) - YADKI-012 - Watershed Boundary
Legend
Longest FlowPath
Watershed Bound ary
0 0.45 0.90.225 Miles
Date: 10 /5/2020
/Drainage Area: 1.37 Square MilesFlowpath Length: 1.9 miles

APPENDIX B

Lag Time Calculation
Dam No:YADKI-012 Date:10/26/2020
Dam Name:Deep Creek WS #15b (Pl-566)Engineer:K. Trefzger
Maximum Potential Retention (inches):S =(1000/cn')-10
Time of Concentration (hours):Tc =l0.8*(S+1)0.7
1140*Y0.5
Basin Data:Input Values in yellow
Curve Number CN =71.5791 from NRCS CN Calculation
S =3.97056 in.
Mean Basin Slope Y =8.03816 %from Watershed Mean slope
Longest Flowpath:1.87 mi.from Watershed Longest flowpath
Flow Length l =9873.6 ft.
Time of Concentration Tc =1.49 Hours Tc =89 mins
Lag Time TL =0.89 Hours TL =54 mins

APPENDIX C
NRCS Curve Number Summary Sheet

Change CN according to TR-55 (see tables below)
NLCD (2016) Landuse TR-55 Landuse HSG A (sq. ft.)CN HSG B (sq. ft.)CN HSG C (sq. ft.)CN HSG D (sq. ft.)CN
Open Water Not Available 0 100 0 276728 100 27672848 58547 100 5854653 216927 100 21692669
Developed, Open Space Open space - Fair condition (grass cover 50% to 75%)0 49 0 1616033 69 111506247 1163872 79 91945876 52058 84 4372893
Developed, Low Intensity Residential districts by average lot size: 1/3 acre 0 57 0 153983 72 11086750 100938 81 8175939 421 86 36198
Developed, Medium Intensity Residential districts by average lot size: 1/8 acre 0 77 0 9688 85 823458 0 90 0 0 92 0
Developed, High Intensity Urban districts - Commercial and business 0 89 0 0 92 0 0 94 0 0 95 0
Barren Land Newly graded areas 0 77 0 0 86 0 0 91 0 0 94 0
Deciduous Forest Woods - Fair 0 36 0 6133641 60 368018436 1504667 73 109840691 743825 79 58762167
Evergreen Forest Woods - Fair 0 36 0 3156777 60 189406612 1484554 73 108372462 180730 79 14277680
Mixed Forest Woods - Fair 0 36 0 2645932 60 158755915 445434 73 32516656 293221 79 23164478
Shrub/Scrub Brush - Fair 0 35 0 349210 56 19555758 26685 70 1867951 40678 77 3132231
Herbaceuous Herbaceuous - Fair 0 60 0 369474 71 26232633 23931 81 1938419 8592 89 764722
Hay/Pasture Pasture - Fair 0 49 0 5780727 69 398870196 3647631 79 288162880 294281 84 24719608
Cultivated Crops Row crops (SR + CR) - Poor 0 71 0 3311465 80 264917184 4130234 87 359330372 2213 90 199202
Woody Wetlands Not Available 0 80 0 0 85 0 0 90 0 0 95 0
Emergent Herbaceuous Wetlands Not Available 0 80 0 0 85 0 0 90 0 0 95 0 Weighted CN=71.58
NOTE: Curve Numbers are from SCS TR-55 with the exception of assumed HSG A (CN=60) for Herbaceous,Open Water, Woody Wetlands, and Emergent Herbaceous
Wetlands.
NOTE: double-check all the land types are being calculated and texts are accurate
NOTE: double-check the exported attribute table has the same table format as the "Export_Output" table

APPENDIX D
Hyetograph Results Used for Analysis

0.0
2.0
4.0
6.0
8.0
10.0
12.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24Cumulative Depth (in)Time (hrs)
Hyetographs for 24-Hour SCS Type II Rainfall Distributions
25YR
50YR
100YR
200YR
500YR
1000YR

APPENDIX E
NOAA Atlas 14 Rainfall Table

Point precipitation frequency estimates (inches)
NOAA Atlas 14 Volume 2 Version 3
Data type: Precipitation depth
Time series type: Partial duration
Project area: Ohio River Basin
Location name (ESRI Maps): Boonville, North Carolina USA
Station Name: -
Latitude: 36.219203°
Longitude: -80.678061°
Elevation (USGS): 988.62 ft
PRECIPITATION FREQUENCY ESTIMATES
by
duration
for ARI
(years):1 2 5 10 25 50 100 200 500 1000
5-min:0.353 0.419 0.496 0.551 0.618 0.665 0.709 0.75 0.799 0.835
10-min:0.564 0.671 0.795 0.882 0.985 1.06 1.13 1.19 1.26 1.32
15-min:0.706 0.843 1.01 1.12 1.25 1.34 1.42 1.5 1.59 1.65
30-min:0.967 1.16 1.43 1.62 1.85 2.02 2.18 2.34 2.53 2.67
60-min:1.21 1.46 1.83 2.1 2.46 2.74 3 3.28 3.63 3.9
2-hr:1.43 1.74 2.19 2.54 3.01 3.38 3.75 4.13 4.65 5.05
3-hr:1.55 1.88 2.37 2.76 3.28 3.69 4.11 4.55 5.14 5.62
6-hr:1.92 2.33 2.93 3.41 4.06 4.59 5.12 5.68 6.46 7.07
12-hr:2.36 2.86 3.6 4.19 5 5.65 6.33 7.04 8.03 8.82
24-hr:2.86 3.47 4.4 5.15 6.18 7.03 7.9 8.82 10.1 11.1
2-day:3.4 4.1 5.16 5.99 7.12 8.03 8.97 9.93 11.3 12.3
3-day:3.61 4.36 5.46 6.31 7.49 8.43 9.39 10.4 11.8 12.9
4-day:3.83 4.62 5.75 6.64 7.85 8.82 9.82 10.8 12.3 13.4
7-day:4.39 5.26 6.42 7.34 8.57 9.54 10.5 11.5 12.9 14
10-day:5.02 5.99 7.22 8.18 9.44 10.4 11.4 12.4 13.8 14.8
20-day:6.74 7.98 9.46 10.6 12.1 13.3 14.5 15.7 17.3 18.5
30-day:8.35 9.84 11.4 12.5 14 15.1 16.2 17.2 18.6 19.6
45-day:10.6 12.4 14.1 15.3 16.9 18.1 19.2 20.3 21.7 22.7
60-day:12.6 14.7 16.5 17.9 19.7 21 22.2 23.4 24.9 26
Date/time (GMT): Mon Oct 26 20:09:25 2020
pyRunTime: 0.0515868663788

APPENDIX F
Outlet Works Rating Curves

Total outlet discharge from the spillway system
Client:NCEM Date:10/26/2020
Project:Overtopping Study Engineer:T.Carter
Dam:Deep Creek WS #15b (PI-566)Dam No.YADKI-012
Reservior Water
Level (RWS)
Elevation (ft)
Total discharge from the
spillway system (cfs)
(from Hydrocad)
906.9 0.0
907.7 4.6
908.5 12.8
909.3 18.4
910.1 22.5
910.9 26.0
911.7 29.0
912.5 31.8
913.3 34.3
914.1 36.7
914.9 38.9
915.7 41.0
916.5 43.0
917.3 44.9
918.1 46.7
918.9 48.4
919.7 54.4
920.5 99.9
921.3 117.7
922.1 246.4
922.9 663.0
923.7 1257.2
924.5 2001.5
925.3 2883.6
926.1 3896.8
926.9 5037.3
927.7 6302.7
928.5 7691.8
929.3 9203.9
930.1 10839.0
930.9 12597.2
931.7 14479.0
932.5 16484.9
933.3 18615.8
934.1 20872.5
934.9 23256.0
935.7 25767.3
936.5 28407.4
937.3 31177.5
938.1 33821.0
938.9 36020.4
939.7 38014.9
940.5 39869.5
941.3 41616.9
942.1 43277.3
942.9 44864.5
943.7 46388.6
0.0
5000.0
10000.0
15000.0
20000.0
25000.0
30000.0
35000.0
40000.0
45000.0
50000.0
905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0Total discharge from the spillway system (cfs)Reservior Water Level (RWS) Elevation (ft)
The whole spillway system rating curve (cfs)
Yadki-012 Deep Creek WS #15b (PI-566)
Rainfall not specifiedYADKI-012
Printed 12/3/2020Prepared by HDR, Inc
Page 1HydroCAD® 10.00-25 s/n 07102 © 2019 HydroCAD Software Solutions LLC
Summary for Pond 1P: YADKI-012 Deep Creek WS #15b (PI-566)
Volume Invert Avail.Storage Storage Description
#1 906.90' 60,852,231 cf Custom Stage Data (Prismatic) Listed below (Recalc)
Yadki-012 Deep Creek WS #15b (PI-566)
Rainfall not specifiedYADKI-012
Printed 12/3/2020Prepared by HDR, Inc
Page 2HydroCAD® 10.00-25 s/n 07102 © 2019 HydroCAD Software Solutions LLC
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
906.90 179,854 0 0
907.40 180,205 90,015 90,015
907.90 184,150 91,089 181,104
908.40 206,631 97,695 278,799
908.90 236,201 110,708 389,507
909.40 264,766 125,242 514,749
909.90 286,982 137,937 652,686
910.40 307,129 148,528 801,213
910.90 329,297 159,107 960,320
911.40 352,158 170,364 1,130,684
911.90 380,039 183,049 1,313,733
912.40 410,557 197,649 1,511,382
912.90 441,504 213,015 1,724,397
913.40 472,813 228,579 1,952,976
913.90 499,609 243,106 2,196,082
914.40 525,088 256,174 2,452,256
914.90 550,156 268,811 2,721,067
915.40 576,074 281,558 3,002,625
915.90 600,293 294,092 3,296,716
916.40 625,850 306,536 3,603,252
916.90 652,959 319,702 3,922,954
917.40 682,510 333,867 4,256,822
917.90 718,281 350,198 4,607,019
918.40 756,416 368,674 4,975,694
918.90 792,266 387,171 5,362,864
919.40 825,850 404,529 5,767,393
919.90 860,225 421,519 6,188,912
920.40 895,879 439,026 6,627,938
920.90 929,170 456,262 7,084,200
921.40 960,742 472,478 7,556,678
921.90 992,432 488,294 8,044,972
922.40 1,023,857 504,072 8,549,044
922.90 1,053,896 519,438 9,068,482
923.40 1,083,105 534,250 9,602,732
923.90 1,112,412 548,879 10,151,612
924.40 1,141,992 563,601 10,715,213
924.90 1,172,754 578,687 11,293,899
925.40 1,199,795 593,137 11,887,036
925.90 1,227,715 606,878 12,493,914
926.40 1,256,914 621,157 13,115,071
926.90 1,286,279 635,798 13,750,869
927.40 1,318,496 651,194 14,402,063
927.90 1,349,863 667,090 15,069,153
928.40 1,381,738 682,900 15,752,053
928.90 1,412,744 698,621 16,450,674
929.40 1,443,701 714,111 17,164,785
929.90 1,473,750 729,363 17,894,148
930.40 1,504,502 744,563 18,638,711
930.90 1,536,221 760,181 19,398,891
Yadki-012 Deep Creek WS #15b (PI-566)
Rainfall not specifiedYADKI-012
Printed 12/3/2020Prepared by HDR, Inc
Page 3HydroCAD® 10.00-25 s/n 07102 © 2019 HydroCAD Software Solutions LLC
931.40 1,568,018 776,060 20,174,951
931.90 1,601,035 792,263 20,967,214
932.40 1,638,184 809,805 21,777,019
932.90 1,829,961 867,036 22,644,055
933.40 1,872,158 925,530 23,569,585
933.90 1,915,801 946,990 24,516,575
934.40 1,958,701 968,626 25,485,200
934.90 2,005,742 991,111 26,476,311
935.40 2,055,059 1,015,200 27,491,511
935.90 2,104,492 1,039,888 28,531,399
936.40 2,152,686 1,064,295 29,595,694
936.90 2,201,533 1,088,555 30,684,248
937.40 2,250,977 1,113,128 31,797,376
937.90 2,489,785 1,185,191 32,982,566
938.40 2,547,090 1,259,219 34,241,785
938.90 2,609,697 1,289,197 35,530,982
939.40 2,673,369 1,320,767 36,851,748
939.90 2,739,746 1,353,279 38,205,027
940.40 2,808,135 1,386,970 39,591,997
940.90 2,875,635 1,420,943 41,012,940
941.40 2,943,564 1,454,800 42,467,740
941.90 3,013,359 1,489,231 43,956,970
942.40 3,080,352 1,523,428 45,480,398
942.90 3,144,512 1,556,216 47,036,614
943.40 3,215,010 1,589,881 48,626,495
943.90 3,291,357 1,626,592 50,253,086
944.40 3,371,279 1,665,659 51,918,745
944.90 3,448,027 1,704,827 53,623,572
945.40 3,528,584 1,744,153 55,367,725
945.90 3,614,180 1,785,691 57,153,416
946.40 3,699,775 1,828,489 58,981,904
946.90 3,781,533 1,870,327 60,852,231
Device Routing Invert Outlet Devices
#1 Primary 900.50'32.0" Round 32" RCP
L= 162.0' RCP, square edge headwall, Ke= 0.500
Inlet / Outlet Invert= 900.50' / 898.80' S= 0.0105 '/' Cc= 0.900
n= 0.013, Flow Area= 5.59 sf
#2 Device 1 906.90'24.0" W x 18.0" H Vert. Riser Orifice C= 0.600
#3 Device 1 919.50'90.0" W x 32.0" H Vert. Riser Weirs X 2.00 C= 0.600
#4 Secondary 921.60'Emergency Spillway, Cv= 3.10 (C= 3.88)
Head (feet) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00
Width (feet) 91.00 103.00 115.00 127.00 139.00 151.00 163.00
175.00 187.00
Yadki-012 Deep Creek WS #15b (PI-566)
Rainfall not specifiedYADKI-012
Printed 12/3/2020Prepared by HDR, Inc
Page 4HydroCAD® 10.00-25 s/n 07102 © 2019 HydroCAD Software Solutions LLC
Primary OutFlow Max=0.00 cfs @ 5.00 hrs HW=0.00' TW=895.90' (Fixed TW Elev= 895.90')
1=32" RCP ( Controls 0.00 cfs)
2=Riser Orifice ( Controls 0.00 cfs)
3=Riser Weirs ( Controls 0.00 cfs)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=0.00' (Free Discharge)
4=Emergency Spillway ( Controls 0.00 cfs)
Yadki-012 Deep Creek WS #15b (PI-566)
Rainfall not specifiedYADKI-012
Printed 12/3/2020Prepared by HDR, Inc
Page 5HydroCAD® 10.00-25 s/n 07102 © 2019 HydroCAD Software Solutions LLC
Stage-Discharge for Pond 1P: YADKI-012 Deep Creek WS #15b (PI-566)
Elevation
(feet)
Discharge
(cfs)
Primary
(cfs)
Secondary
(cfs)
906.90 0.00 0.00 0.00
907.30 1.62 1.62 0.00
907.70 4.59 4.59 0.00
908.10 8.44 8.44 0.00
908.50 12.79 12.79 0.00
908.90 15.89 15.89 0.00
909.30 18.39 18.39 0.00
909.70 20.56 20.56 0.00
910.10 22.52 22.52 0.00
910.50 24.31 24.31 0.00
910.90 25.98 25.98 0.00
911.30 27.55 27.55 0.00
911.70 29.03 29.03 0.00
912.10 30.44 30.44 0.00
912.50 31.78 31.78 0.00
912.90 33.07 33.07 0.00
913.30 34.31 34.31 0.00
913.70 35.51 35.51 0.00
914.10 36.66 36.66 0.00
914.50 37.79 37.79 0.00
914.90 38.88 38.88 0.00
915.30 39.94 39.94 0.00
915.70 40.97 40.97 0.00
916.10 41.98 41.98 0.00
916.50 42.96 42.96 0.00
916.90 43.92 43.92 0.00
917.30 44.86 44.86 0.00
917.70 45.78 45.78 0.00
918.10 46.69 46.69 0.00
918.50 47.57 47.57 0.00
918.90 48.44 48.44 0.00
919.30 49.30 49.30 0.00
919.70 54.44 54.44 0.00
920.10 73.34 73.34 0.00
920.50 99.92 99.92 0.00
920.90 116.51 116.51 0.00
921.30 117.70 117.70 0.00
921.70 130.06 118.88 11.18
922.10 246.37 120.05 126.32
922.50 429.43 121.21 308.22
922.90 662.95 122.36 540.59
923.30 940.14 123.49 816.65
923.70 1,257.16 124.62 1,132.54
924.10 1,611.51 125.73 1,485.78
924.50 2,001.48 126.84 1,874.64
924.90 2,425.81 127.94 2,297.88
925.30 2,883.59 129.03 2,754.56
925.70 3,374.10 130.10 3,244.00
926.10 3,896.81 131.17 3,765.64
926.50 4,451.30 132.23 4,319.07
926.90 5,037.26 133.29 4,903.97
Elevation
(feet)
Discharge
(cfs)
Primary
(cfs)
Secondary
(cfs)
927.30 5,654.44 134.33 5,520.11
927.70 6,302.66 135.37 6,167.30
928.10 6,981.80 136.39 6,845.40
928.50 7,691.75 137.41 7,554.33
928.90 8,432.46 138.43 8,294.03
929.30 9,203.91 139.43 9,064.47
929.70 10,006.08 140.43 9,865.65
930.10 10,839.00 141.42 10,697.57
930.50 11,702.69 142.41 11,560.28
930.90 12,597.21 143.38 12,453.82
931.30 13,522.61 144.36 13,378.26
931.70 14,478.98 145.32 14,333.66
932.10 15,466.38 146.28 15,320.11
932.50 16,484.93 147.23 16,337.70
932.90 17,534.70 148.18 17,386.53
933.30 18,615.82 149.12 18,466.70
933.70 19,728.38 150.05 19,578.33
934.10 20,872.52 150.98 20,721.54
934.50 22,048.35 151.90 21,896.45
934.90 23,255.99 152.82 23,103.18
935.30 24,495.59 153.73 24,341.86
935.70 25,767.26 154.63 25,612.63
936.10 27,071.15 155.54 26,915.62
936.50 28,407.40 156.43 28,250.97
936.90 29,776.14 157.32 29,618.82
937.30 31,177.52 158.21 31,019.32
937.70 32,588.75 159.09 32,429.66
938.10 33,820.95 159.96 33,660.99
938.50 34,953.12 160.83 34,792.29
938.90 36,020.39 161.70 35,858.69
939.30 37,037.95 162.56 36,875.39
939.70 38,014.86 163.42 37,851.44
940.10 38,957.22 164.27 38,792.95
940.50 39,869.51 165.12 39,704.39
940.90 40,755.17 165.96 40,589.21
941.30 41,616.93 166.80 41,450.12
941.70 42,457.01 167.64 42,289.37
942.10 43,277.28 168.47 43,108.81
942.50 44,079.31 169.30 43,910.01
942.90 44,864.45 170.12 44,694.33
943.30 45,633.88 170.94 45,462.94
943.70 46,388.63 171.75 46,216.87
944.10 47,129.61 172.57 46,957.04
944.50 47,857.64 173.37 47,684.26
944.90 48,573.44 174.18 48,399.26
945.30 49,277.68 174.98 49,102.70
945.70 49,970.94 175.77 49,795.16
946.10 50,653.77 176.57 50,477.21
946.50 51,326.68 177.36 51,149.32
946.90 51,990.10 178.14 51,811.96