Composite CN Value Based on Hydrologic Soil Group and Estimated Future Land Cover Village of Milan, Mirabal Park /5/016 DEVELOPED LAND AREAS** Basin Basin HSG "B" HSG "C" HSG "D" Basin Basin Area Area Area (sm) Imp. % CN Weighted CN ID 89.1 6 0.040 70 6 40% 81 5 85% 94 4 100% 98 40% 91 9 85% 96 9 HSG = Hydrologic Soil Group as defined by the Natural Resources Conservation Service. ** Curve numbers for developed areas assume fair condition lawns in combination with fair condition Inter-Mountain Basins Semi-Desert Grassland: CN B = 70, CN C = 80, CN D = 87
Lag Time Calculations Village of Milan, New Mexico: Mirabal Park /5/016 OVERLAND FLOW (Kinematic Wave Equation) t t 0.4 P 0.5 nl S 0.8 SHALLOW CONCENTRATED FLOW CHANNEL FLOW Tc Tc Lag BASIN Manning's n -yr, 4-hr Length Max El. Min El. Slope Tt "k" Factor Length Max El. Min El. Slope Vel Tt Manning's n Length Max El. Min El. Slope Vel Tt TOTAL TOTAL (overland) (in) (ft) (ft) (ft) (%) (min) (ft) (ft) (ft) (%) (fps) (min) (channel) (ft) (ft) (ft) (%) (fps) (min) (min) (hrs) (min) 89.1 0.018 1.8 61 6530 659.0% 1.9 0.619 86 659 659 0.% 0.9 5.6 0.016 770 659 651.1% 3.0 4.3 1 0.0 7
MILAN ELEMENTARY SCHOOL SAND ST. UR VE AA LIN A CAT AN MIRABAL PARK IUM INTERSTATE UA LA 40 E. AV M:\MSD\15-600-097-00\_DISCIPLINES\DRAINAGE_OR_SITEWORK\WORKING\BASINS.DWG /18/016 11:53 AM E. AV 1 T. YS CLA DRAINAGE BASIN VILLAGE OF MILAN, NM Mirabal Park /5/016 4900 LANG AVE., N.E. SUITE 00 ALBUQUERQUE, NEW MEXICO 87109 PH (505) 348-4000 FAX (505) 348-407 www.wilsonco.com
Project: Grants/Cibola County DMP Simulation Run: 10 YR Future Condition Subbasin: B89.1 Start of Run: 01Aug010, 00:00 Basin Model: Grants/Cibola County DMP End of Run: 0Aug010, 00:00 Meteorologic Model: 10 YR Compute Time: 04Feb016, 15:36:01 Control Specifications: Control Volume Units: AC FT Computed Results Peak Discharge : 46.5 (CFS) Date/Time of Peak Discharge : 01Aug010, 06:03 Total Precipitation : 3.968 (AC FT) Total Direct Runoff :.37 (AC FT) Total Loss : 1.595 (AC FT) Total Baseflow : 0.000 (AC FT) Total Excess :.373 (AC FT) Discharge :.37 (AC FT)
Project: Grants/Cibola County DMP Simulation Run: 50 YR Future Condition Subbasin: B89.1 Start of Run: 01Aug010, 00:00 Basin Model: Grants/Cibola County DMP End of Run: 0Aug010, 00:00 Meteorologic Model: 50 YR Compute Time: 04Feb016, 16:04:13 Control Specifications: Control Volume Units: AC FT Computed Results Peak Discharge : 70.3 (CFS) Date/Time of Peak Discharge : 01Aug010, 06:18 Total Precipitation : 5.91 (AC FT) Total Direct Runoff : 3.561 (AC FT) Total Loss : 1.718 (AC FT) Total Baseflow : 0.000 (AC FT) Total Excess : 3.573 (AC FT) Discharge : 3.561 (AC FT)
Project: Grants/Cibola County DMP Simulation Run: 100 YR Future Condition Subbasin: B89.1 Start of Run: 01Aug010, 00:00 Basin Model: Grants/Cibola County DMP End of Run: 0Aug010, 00:00 Meteorologic Model: 100 YR Compute Time: 9Jan016, 10:47:55 Control Specifications: Control Volume Units: AC FT Computed Results Peak Discharge : 81.9 (CFS) Date/Time of Peak Discharge : 01Aug010, 06:03 Total Precipitation : 5.888 (AC FT) Total Direct Runoff : 4.18 (AC FT) Total Loss : 1.759 (AC FT) Total Baseflow : 0.000 (AC FT) Total Excess : 4.19 (AC FT) Discharge : 4.18 (AC FT)
GENERAL SHEET NOTES 1. SEE SHEET 3-1 FOR PHASE 1 GRADING PLAN. SAND ST FOUND: #5 REBAR (NO CAP) 1 13 BEGIN 6 KEYNOTES 13 11 7. M.S O PH LE TE NE T EN M SE EA. CONSTRUCT 1" MOW STRIP. SEE DETAIL D/-. 3. CONSTRUCT PAVERS. SEE DETAIL F4/-1. 4. CONSTRUCT 4" PCC SIDEWALK. SEE DETAIL G8/-1. 5. CONSTRUCT PLAYGROUND RAMP. SEE DETAIL A1/-1 & C4/-1. 6. CONSTRUCT BASKETBALL COURT. SEE SHEET -10. SEE DETAIL SHEET -4. 7. CONSTRUCT VOLLEYBALL COURT. SEE SHEET -10. SEE DETAIL A8/-. 8. CONSTRUCT BACKSTOP WALL. SEE DETAIL A7/-5. 9. CONSTRUCT SOFTBALL FIELD. SEE SHEET -11. 10. INSTALL NATURAL GRASS FIELD. 11. CONSTRUCT 3" ASPHALT. SEE DETAIL D8/-1. 1. CONSTRUCT 6" x 4" TYPE 'B' CURB AND GUTTER. SEE SHEET 1-11. 13. CONSTRUCT MOUNTABLE CURB AND GUTTER TYPE 'A'. SEE SHEET 1-11. 14. CONSTRUCT PARALLEL CURB RAMP. SEE SHEETS 1-8 & 1-9. 1 10 LA VA TAL CA E AV INA CONSTRUCT 8" PLAYGROUND WALL. SEE DETAIL F6/-1. SEAL 4 1. CONSULTANTS 3 AVE 13 11 END PROJECT NAME 13 4 1 BY DESCRIPTION 3 1 5 4 11 LEGEND 14 4 3 PAVERS 1 DATE SAND 4" PCC REV. M:\MSD\15-600-097-00\_DISCIPLINES\_SHEETS\_SHEETS - CIVIL\PHII\156097_GD_PHII.DWG 1/5/016 11:03 AM 4 NATURAL GRASS ST Y A CL 5 1 A1 GRADING & DRAINAGE PLAN - PHASE SCALE: 1" = 30' BOP BOTTOM OF POND ELEVATION PROJECT NO: BW BOTTOM OF WALL ELEVATION DESIGNED BY: FG FINISHED GRADE ELEVATION DRAWN BY: FL FLOWLINE ELEVATION ME MATCH EXISTING ELEVATION TA TOP OF ASPHALT ELEVATION TC TOP OF CONCRETE ELEVATION TW TOP OF WALL ELEVATION CHECKED BY: DATE: SHEET TITLE SHEET NO: 1560009700 MJI JEM MJI FEB 015