Hillcrest Residential Development Hollywood, Florida
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1 August 19, 2015 Hillcrest Residential Development Hollywood, Florida Drainage Report For City of Hollywood Prepared by: Kimley-Horn and Associates, Inc th Street, Suite 200 Vero Beach, FL (772) Kimley-Horn and Associates, Inc. 2015
2 August 19, 2015 Hillcrest Residential Development Hollywood, Florida Drainage Report For City of Hollywood Prepared by: Kimley-Horn and Associates, Inc th Street, Suite 200 Vero Beach, FL (772) / Kinan Husainy, P.E. Date FL P.E. # 75481
3 TABLE OF CONTENTS 1. Site Description 2. Existing Conditions 3. Post Development 4. Drainage Summary Figures 1. Water Table map Average Wet Season 2. FEMA Flood Zone and 100 Year Flood Elevations Map 3. Existing Aerial 4. Proposed Stormwater Pond Exhibit Appendix A. Post-Development Drainage Calculations B. FDOT Discharge Permit S C. Existing FDOT Easement
4 1. Site Description Hillcrest Residential Development Hollywood, FL DRAINAGE SUMMARY This proposed residential development is located the northwest corner of Pembroke Rd. (SR824) and S Park Road in the City of Hollywood, Florida. This site consists of the existing Hillcrest Country Club 18-hole golf course on the south side of Hillcrest Drive and a former 9-hole golf course on the north side of Hillcrest Drive. The proposed site is +/ Acres consisting of 645 units (single family and multifamily) and associated amenities. As a part of the onsite proposed improvements, all existing buildings and infrastructure will be demolished. 2. Existing Conditions The existing site is two former Golf Courses with associated clubhouses and auxiliary buildings. The majority of the site is relatively flat with a pervious surface. The existing drainage for the Hillcrest Golf Course consists of several wet ponds, with all stormwater runoff currently being retained on site. There is no permitted discharge from the existing site according to the latest South Florida Water Management Permit. There are two existing on-site wet ponds that are currently being used as stormwater treatment ponds for the Pembroke Road ROW drainage system by FDOT. We have included a copy of the Permit and Easement agreement in the Appendix of this summary. There are also two existing on-site wet ponds that are being used to retain reuse water for irrigation which is pumped into the ponds by the City of Hollywood that service the golf course. The FDOT right of way discharges along Pembroke Rd. into two ponds along the south side of the 18-hole golf course via a 60 pipe. The water diverted to the golf course stages up, until it reaches the elevation of a v-notch diversion weir, at which point water begins to discharge downstream into the remainder of the Pembroke Rd. drainage system. Per the easement recorded between FDOT and the existing property owner, the following capacities and volumes are representative of the existing conditions and must be maintained: Design capacity of 36.8 cubic feet per second (cfs) from the grantee s roadway corridor for State Road 824 (Pembroke Road) during a 25 year, three (3) day storm event, as permitted by South Florida Water Management District (SFMWD) Design volume of 6.8 acre feet in Pond 1, and 12.5 acre feet in Pond 2 from the grantee s roadway corridor for State Road 824 (Pembroke Road) for the require storage volume permitted by SFWMD. Under this easement it states the that the grantor shall not effect a reduction in the storage capacity of the existing ponds until such time as the replacement storage area has been constructed and approved in writing by grantee, which approval shall not be unreasonably withheld.
5 In addition to discharge from FDOT, the site accepts reuse water from the City of Hollywood which is stored in two ponds on site. One of these ponds is located on the portion of the project north of Hillcrest Drive and the other is located south of Hillcrest Drive. These ponds store reuse water which is then used for irrigation on the existing golf course. 3. Post Development Post development conditions have been designed to maintain existing conditions as closely as possible. It is proposed that all stormwater will flow through interconnected storm pipes into to a series of wet and dry ponds located throughout the site. These ponds will serve to provide both the stormwater quality and quantity required for this project. There will be no discharge from the on-site drainage system associated with the proposed design and all of the design storms will be maintained in the proposed onsite ponds. We have not included any storage within the site (outside of the ponds) as a factor of safety. As part of the design, the ponds accepting discharge from the FDOT Pembroke Rd ROW are to be relocated. These ponds are proposed to be wet retention ponds, similar to the predevelopment conditions. The location of the proposed ponds are in similar locations to the existing ponds, and will be connected to the FDOT system through an existing 60 pipe and an interconnecting 18 pipe. All criteria dictated in the recorded easement with FDOT is met in the proposed design. The ponds which currently accept and store reuse water from the City of Hollywood are also to be relocated. They will be combined into one pond located along the eastern half of the 18 hole golf course site south of Hillcrest Drive. This pond will have the same storage volume as the two existing reuse storage ponds. 4. Drainage Summary No Discharge - Post Development Hillcrest Rainfall Post-Development Peak Stage NAVD(ft) Design Element 10 yr-24hr yr-72 hr yr-72 hr 9.55 Min. Finished Floor Elev. BC Flood Map Elev. < or = to Note: Datum in Broward County since previous permit has changed from NGVD 29 to NAVD 88. Per the Broward County website, FEMA has computed the official conversion factor for NGVD 29 to NAVD 88 to be This is reflected in the table above and all calculations.
6 FIGURES
7 US27 SW 154TH AVE I75 N FLAMINGO RD HIATUS RD RED RD S SR7 N SR7 S SR7 N SR7 LYONS RD I95 WATER TABLE MAP - AVERAGE WET SEASON PALMBEACH N USHY 27 N US27 S US27 CON SERVAT ION AR EA Water Table Wet Season NAVD (NGVD) Urban Broward County GLADES PKY Miles (7.0) 3.5 (5.0) I75 ROYAL PALM BLVD WESTON RD SOUTH POST RD SW 184TH AVE SW 172ND AVE BROWARD SW 172ND AVE SW 160TH AVE SW 14TH ST GRIFFIN RD PINES BLVD MIRAMAR PKY NW 136TH AVE 1.5 (3.0) N FLAMINGO RD FLAMINGO RD S FLAMINGO RD N HIATUS RD S HIATUS RD HIATUS RD 2.5 (4.0) HIATUS RD NOB HILL RD CORAL RIDGE DR I595 SAWGRASS EXPY NW 44TH ST N NOB HILL RD SW 45TH ST WILES RD W SAMPLE RD W COMMERCIAL BLVD N PINE ISLAND RD UNIVERSITY DR SOUTHGATE BLVD 4.5 (6.0) CLEARY BLVD S NOB HILL RD NOB HILL RD N PALM AVE SW 101ST AVE N UNIVERSITY DR RIVERSIDE DR W BROWARD BLVD S PINE ISLAND RD S UNIVERSITY DR STIRLING RD TAFT ST SHERIDAN ST JOHNSON ST PEMBROKE RD HOMESTEAD TPKE EXT N DOUGLAS RD 8.5 (10.0) NW 5TH ST W ATLANTIC BLVD KIMBERLY BLVD FLORIDA TPKE W OAKLAND PARK BLVD PETERS RD NOVA DR DAVIE RD SUNSET STRIP ROCK ISLAND RD W MCNAB RD SW 72ND AVE HOLMBERG RD BAILEY RD NW 56TH AVE SW 41ST ST BANKS RD NW 31ST AVE W SUNRISE BLVD SW 40TH AVE 0.5 (2.0) N SR7 N 56TH AVE N 46TH AVE W HILLSBORO BLVD NW 62ND ST NW 19TH ST SW 30TH AVE HOLLYWOOD BLVD WASHINGTON ST S SR7 SW 31ST AVE 9.5 (11.0) SW 27TH AVE N PARK RD NW 21ST AVE W COPANS RD NW 6TH ST NW 9TH AVE DAVIE BLVD SR84 W HALLANDALE BEACH BLVD ANGLERS AVE NW 31ST AVE 3.5 (5.0) 0.5 (2.0) NW 49TH CT 6.5 (8.0) 4.5 (6.0) SW 3RD ST N ANDREWS AVE SW 4TH AVE S PERIMETER RD NW 7TH AVE NE 4TH AVE NE 6TH AVE S FEDERAL HWY SW 10TH ST NE 3RD AVE N FEDERAL HWY N DIXIE HWY NE 62ND ST NE 56TH ST NE 15TH AVE S CYPRESS RD S OCEAN DR N OCEAN DR BAYVIEW DR N ATLANTIC BLVD SE 17TH ST ELLER DR NE 10TH ST NE 45TH ST E DANIA BEACH BLVD DIXIE HWY MIAM I-DA DE C OU NT Y S DIXIE HWY NW 9TH AVE PAL M BE ACH C OU NTY 2.5 (4.0) SE 10TH ST N FEDERAL HWY S FEDERAL HWY N OCEAN BLVD S OCEAN BLVD N OCEAN BLVD AT L ANT IC O CEA N N HILLSBORO MILE MIAMI-DADE Division Name: Planning and Environmental Regulation Department Name: Environmental Protection and Growth Management This map is for conceptual purposes only and should not be used for legal boundary determinations. Elevation converted from NGDV to NAVD using the FEMA approved conversion factor for Broward County of (-) 1.5
8 7 (8.5) US27 S US27 N US27 SW 184TH AVE SW 154TH AVE I75 SW 136TH AVE N FLAMINGO RD RED RD HIATUS RD UNIVERSITY DR 11 (12.5) RIVERSIDE DR DAVIE RD ROCK ISLAND RD CORAL RIDGE DR N SR7 S SR (14) N 46TH AVE LYONS RD SW 31ST AVE NOB HILL RD NW 65TH AVE S SR7 N SR7 S SR7 SW 30TH AVE SW 27TH AVE SW 26TH TER NW 23RD AVE NW 21ST AVE FLORIDA TPKE NW 9TH AVE NW 31ST AVE S POWERLINE RD SW 4TH AVE S FEDERAL HWY N SR7 NW 9TH AVE N DIXIE HWY N MILITARY TRL NE 3RD AVE FEMA FLOOD ZONES (1997) and 100 YEAR FLOOD ELEVATIONS PALMBEACH N USHY Year Flood Contours NAVD (NGVD) ZONE A ZONE AE ZONE AH ZONE AO ZONE VE ZONE X Miles BROWARD 8.5 (10) NW 120TH WAY 9.5 (11) 9 (10.5) 10.5 (12) 10 (11.5) 9.5 (11) 14.5 (16) SAWGRASS EXPY W SAMPLE RD NW 44TH ST N NOB HILL RD N PINE ISLAND RD CORAL SPRINGS DR SOUTHGATE BLVD 10.5 (12) 8.5 (10) SUNSET STRIP WILES RD 11 (12.5) ROYAL PALM BLVD RAMBLEWOOD DR NW 50TH ST N UNIVERSITY DR 9 (10.5) 12 (13.5) 10 (11.5) SW 81ST AVE W COMMERCIAL BLVD INVERRARY BLVD 15 (16.5) KIMBERLY BLVD 14 (15.5) W MCNAB RD BAILEY RD HOLMBERG RD 8 (9.5) 12.5 (14) 10 (11.5) JOHNSON RD BANKS RD 12 (13.5) 14 (15.5) LYONS RD S 11.5 (13) 8 (9.5) 13 (14.5) W MCNAB RD W OAKLAND PARK BLVD NW 19TH ST W HILLSBORO BLVD NW 48TH ST 8.5 (10) NW 62ND ST 6.5 (8) 13.5 (15) 7.5 (9) W PROSPECT RD 5.5 (7) N POWERLINE RD NW 49TH CT W COPANS RD MARTIN LUTHER KING BLVD W ATLANTIC BLVD N ANDREWS AVE PALM BEACH COUNTY SW 3RD ST 7.5 (9) NE 6TH AVE 6 (7.5) SW 10TH ST N DIXIE HWY NE 62ND ST NE 56TH ST 12.5 (14) 11.5 (13) E COMMERCIAL BLVD WILTON DR NW 48TH ST S CYPRESS RD NE 45TH ST NE 26TH ST N FEDERAL HWY NE 48TH ST 4.5 (6) E SAMPLE RD NE 10TH ST E ATLANTIC BLVD E MCNAB RD BAYVIEW DR E HILLSBORO BLVD S DIXIE HWY NE 23RD ST S FEDERAL HWY SE 10TH ST NE 49TH ST 5 (6.5) N OCEAN BLVD N FEDERAL HWY 4.5 (6) 5.5 (7) NE 14TH ST N OCEAN DR S OCEAN BLVD N OCEAN BLVD HILLSBORO MILE N OCEAN DR 7.5 (9) GLADES PKY I75 SOUTH POST RD INDIAN TRCE 7 (8.5) BONAVENTURE BLVD SADDLE CLUB RD ROYAL PALM BLVD 7.5 (9) 6.5 (8) I (9) 6.5 (8) NW 5TH ST W BROWARD BLVD 8.5 (10) 7.5 (9) 8 (9.5) W SUNRISE BLVD NW 31ST AVE 6.5 (8) SR (7) 6.5 (8) 5.5 (7) GRIFFIN RD WESTON RD SW 36TH ST SW 14TH ST NW 136TH AVE N HIATUS RD S HIATUS RD HIATUS RD S NOB HILL RD CLEARY BLVD S PINE ISLAND RD SW 30TH ST NOVA DR COLLEGE AVE PETERS RD NW 6TH ST DAVIE BLVD S ANDREWS AVE S FEDERAL HWY SE 17TH ST 6.5 (8) NOB HILL RD SW 45TH ST 6 (7.5) STIRLING RD S UNIVERSITY DR 6 (7.5) 5.5 (7) N PARK RD 6.5 (8) 6.5 (8) PINES BLVD SW 172ND AVE SHERIDAN ST SW 160TH AVE 6.1 (7.6) S FLAMINGO RD NW 56TH AVE RIVERLAND RD NW 27TH AVE RAVENSWOOD RD NW 7TH AVE SW 34TH ST NE 4TH AVE NE 13TH ST E BROWARD BLVD E LAS OLAS BLVD SE 24TH ST E PERIMETER RD ELLER DR NE 20TH AVE N ATLANTIC BLVD SEABREEZE BLVD ATLANTIC OCEAN SW 100TH AVE SW 40TH AVE SW 42ND ST ANGLERS AVE S PERIMETER RD N FEDERAL HWY E DANIA BEACH BLVD CONSERVATION AREA NW 184TH AVE NW 172ND AVE NW 160TH AVE N FLAMINGO RD N HIATUS RD HIATUS RD 6 (7.5) N PALM AVE N DOUGLAS RD DAVIE ROAD EXT TAFT ST JOHNSON ST N 72ND AVE 7.5 (9) 8.5 (10) N 56TH AVE HOLLYWOOD BLVD I95 DIXIE HWY N DIXIE HWY S DIXIE HWY S FEDERAL HWY N FEDERAL HWY SHERIDAN ST 5.5 (7) HOLLYWOOD BLVD N OCEAN DR S FLAMINGO RD SW 72ND AVE S 62ND AVE WASHINGTON ST SW 172ND AVE MIRAMAR PKY SW 160TH AVE S HIATUS RD FLAMINGO RD HIATUS RD 6.5 (8) PEMBROKE RD SW 101ST AVE S UNIVERSITY DR S DOUGLAS RD HOMESTEAD TPKE EXT SW 41ST ST SW 62ND AVE 8.5 (10) SW 56TH AVE S PARK RD W HALLANDALE BEACH BLVD MIAMI-DADE COUNTY S DIXIE HWY 5 (6.5) S OCEAN DR N 5.8 (7.3) MIAMI-DADE Division Name: Planning and Environmental Regulation Department Name: Environmental Protection and Growth Management This map is for conceptual purposes only and should not be used for legal boundary determinations. Elevation converted from NGDV to NAVD using the FEMA approved conversion factor for Broward County of (-) 1.5
9 Exist. Re-Use Pond Exist. FDOT Pond HILLCREST RESIDENTIAL DEVELOPMENT AERIAL LOCATION MAP EX
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11 APPENDIX A POST-DEVELOPMENT DRAINAGE CALCULATIONS
12 Post-Development Curve Number TR-55 Methodology - Post Conditions CURVE NUMBER HILL CREST Description Area (SF) Area (AC) % of Total Impervious Pavement 787, % Building & Driveways 1,416, % Sidewalk/Trail 249, % Site Water Surface % Impervious Total = 2,452, Pervious Group (D) 3,356, % HILL CREST Description Area (SF) Area (AC) % of Total Impervious Road % Building % Sidewalk % Driveway/Garage 0.0 Pond Water Surface 558, % Impervious Total = 558, Pervious Group (D) 485, % Total Area* = 6,853, % *Total Area is Site Excluding FDOT and Re-Use Ponds Total Pavement = 1,036, % Total Building = 1,416, % Total Pervious = 3,842, % Total Wet Pond = 558, % Total Project Area = 6,853, % *Total Area is Site Excluding FDOT and Re-Use Ponds SOIL STORAGE: AVG. DEPTH TO WATER TABLE = AVG. PROPOSED GRADE - WATER LEVEL AVG GRADE WATER LEVEL D=(FT) SOIL STORAGE (S) = AVAILABLE SOIL STORAGE X PERVIOUS AREA/TOTAL AREA SEE C-35, SFWMD VOL.IV) AVG. SOIL ST. PERVIOUS (AC) TOTAL (AC) (S) = (IN) CN = 1000/(S+10) 68.56
13 Post-Development Runoff Volume Calculator Based on the Soil Conservation Service Technical Release 55 Urban Hydrology for Small Watersheds, June 1986 Project Name: HILLCREST Project Number: Calculated By: Aaron Struckmeyer Calculated Date: 8/18/2015 [Eq. 2-4] S = CN [Eq. 2-3] Q = (P 0.2S) 2 (P + 0.8S) 10 Year 24 Hour INPUT: P = Rainfall Depth: 9.20 inches CN = Curve Number: A = Basin Area: acres S = Potential Maximum Retention After Runoff 4.59 Begins: Q = Runoff: 5.33 inches = 0.44 feet OUTPUT:. V = Runoff Volume: acre-feet INPUT: OUTPUT: INPUT: OUTPUT: 25 Year 72 Hour P = Rainfall Depth: inches CN = Curve Number: A = Basin Area: acres S = Potential Maximum Retention After Runoff Begins: 4.59 Q = Runoff: 9.22 inches = 0.77 feet V = Runoff Volume: acre-feet 100 Year 72 Hour P = Rainfall Depth: inches CN = Curve Number: A = Basin Area: acres S = Potential Maximum Retention After Runoff 4.59 Begins: Q = Runoff: inches = 1.04 feet V = Runoff Volume: acre-feet
14 Post Development Site Storage Volume Date: 8/18/2015 By: AAS ALL ELEVATIONS LISTED IN NAVD '88 SITE PONDS UNDERGROUND TOTAL ONSITE Note: assume linear site storage between low and high elevation and vertical storage above high elev. Min. Elevation = 0.5 Control Elevation = 0.5 Control Elevation = 0.5 Control Elevation = 0.5 Finished Floor Elevation = 11 Finished Floor Elevation = 11 Finished Floor Elevation = 11 Finished Floor Elevation 11 Area at Control Elevation = 0 Area at Control Elevation = Area at Control Elevation Area at Top of Bank = Area at Top of Bank = PIPE VOLUME 0.00 ac-ft Area at Top of Bank = Building Area = Building Area = 0.00 Building Area = 0 PIPE VOLUME Area at Control Elevation Additional Site Area at Top of Bank Total Total Total Total Area at Control Elevation Additional Site Area at Top of Bank Total Total Total Total Sub-Area Sub-Area Sub-Area Sub-Area Low El Site Site Site Low El Site Site Site Low El. Low El. Site Total Total Total Total High El Storage Storage Storage Storage High El Storage Storage Storage Storage High El. Storage High El. Storage Storage Storage Area (ft^2) Area (ft^2) Area (ft^2) Area (ft^2) NO UNDERGROUND WITH UNDERGROUND Area (acres) Area (acres) Area (acres) Area (acres) Stage Linear Vert. Linear Vert. Stage Stage Linear Vert. Linear Vert. Stage Stage Stage NAVD Stor. Stor. Stor. Stor. NAVD (ac-ft) (ac) (ac) (ac) (NGVD) Stor. Stor. Stor. Stor. NAVD (ac-ft) (ac) (ac) (ac) (NGVD) (ac-ft) (NGVD) (ac) (ac-ft) (ac-ft) #DIV/0! #DIV/0! #DIV/0! #DIV/0! 10 Year 24 Hour 25 Year 72 Hour 100 Year 72 Hour
15 APPENDIX B FDOT Discharge Permit S
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39 APPENDIX C Existing Perpetual Easement between Hillcrest Country Club, Limited Partnership and the State of Florida Department of Transportation
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