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2023-02-16 V. A. 23-001-TRC 1/6/23 SFWMDSWM ReportOkeechobee County Water Management Report Proposed Site Improvements for Glenwood Park, LLC City of Okeechobee, FL Revised December 2022 ENGINEERING By: Steven L. Dobbs, P.E. # 48134 Steven L. Dobbs Engineering 1062 Jakes Way Okeechobee, FL 34974 Purpose: The purpose of this report is to provide South Florida Water Management District (SFWMD) and City of Okeechobee County with the calculations and documentation necessary to demonstrate the proposed surface water management system complies with state and local criteria. Existing Condition Description: The site is an open space lawn with trees and there were no previous improvements on site. There are two portions of the existing site: Block 110 which is the north portion that is enclosed between NE 5th Street, NE 3rd Ave., 4th Street, and NE 2nd Ave. with PARCEL ID: (3-15-37-35-0010- 01100-0010). And Block 121 which the south portion enclosed between NE 4th Street, NE 3rd Ave., NE 3rd Street, and NE 2nd Ave. with PARCEL IDs: (3-15-37-35-0010-01210-0010 and 3-15-37-35-0010-01210- 0010). Both are in portion of Section 15, Township 37 South, Range 35 East, City of Okeechobee. The historic discharge for site block 110 is through a sheet flow going to the north and south swale of the and then discharging to an existing drainage structure on the northeast and southeast of the site while some flows are also contained in the site. The historic discharge for site block 121 is through a sheet flow going to the north and east swale of the and then discharging to an existing drainage structure on the northeast of the site while some flows are also contained in the site. The Soils Report for Okeechobee County identifies the site soil as Immokalee fine sand with 0 to 2% slopes. This soil has a Hydrologic Soil Group rating of B/D which is poorly drained in the natural state and moderately drained in developed. The soils report also indicates the wet season water table is approximately F below natural ground. The average elevation where the pond is located is 25 which sets the wet season water table elevation to 24. Proposed Use: The owner proposes construction of 28 Multifamily rental units with associated drainage and parking. The project will be served by a dry detention stormwater collection system. The water and sewer will be served by the Okeechobee utility Authority. Drainage Considerations: To attenuate the increased run-off generated by the proposed improvements and to ensure that water quality standards are met, we propose to pass all drainage from the pavement area through a dry detention system which will discharge to the west through north of Fire Station department by drainage pipe to swale. The dry detention basin is a 5-133 basin which is controlled at 13.5 NGVD `29. The control elevation for the project will be the wet season water table at elevation 24. This will put the bottom of the pond at elevation 25. Allowable discharge for the 5-133 basin is 15.6 CSM for the 25 year— 3 day event: Q = 15.6 cfs per square mile * A / 640 Q1 = 15.6 cfs per square mile * 2.07/ 640 = 0.05 cfs Q2 = 15.6 cfs per square mile * 2.20/ 640 = 0.05 cfs A. Water Quality Water quality treatment is provided in the form of dry detention. Since the proposed water quality system is dry detention, the volume required is 100% of the calculated volume. However, since this project discharge into an impaired water basin and with a presumption of compliance with nutrient control by adding an additional 50% to the water quality volume the total water quality volume is see table below. Based on the attached stage storage spreadsheet, the water quality volume see table below is met at elevation see table below. Total water quality required for 150% of the water quality volume and elevation for the two sites is see table below. Water Ouality Table Basin WQ Volume Required Ac-Ft Elevation WQ Volume Met WQ Volume Provided Ac-Ft Onsite Blk 110 0.19 24.55 2.13 Onsite Blk 121 0.21 25.56 1.58 B. Water Quantity This project is located in the S-133 which discharges ultimately into Lake Okeechobee through S-133 out of the rim canal. The allowable peak discharge rate in this basin is 15.6 CSM. The allowable peak discharge rate for this project, based on the 25-year, 72-hour storm event was calculated and shown below. The actual maximum discharge rate for the 10-year, 72-hour storm event was calculated and shown below, which is within tolerance of the maximum allowable peak rate. To demonstrate conformance to this criterion, the proposed project was flood -routed using AdICPR. Allowable Discharge Modeled Discharge Meets Criteria Onsite Blk 110 0.05 CFS 0.30 No, but minimum bleeder Onsite Blk 121 0.05 CFS 0.30 No, but minimum bleeder The 10-year, 24-hour storm (5.0") w/ discharge, the 25 year, 72 hour storm (9") w/ discharge, and the 100 year, 72 hour storm (10") w/o discharge, were evaluated based on the proposed plan. Please refer to the attached AdICPR flood routing input/output parameters. A summary of the flood routings for the Lake Node in each Phase is provided as follows: 10 Year, 24 Hr. Storm 25 Year. 72 hr. Storm 100 Year, 72 Hr. Storm (5.0„) (9,011) (10,011) Peak Stage Peak Rate Peak Stage Peak Rate Peak Stage (ft-NGVD'29) (cfs) (ft-NGVD'29) (cfs) (ft- NGVD'29) Onsite Blk 110 25.07 0.28 25.35 0.30 26.19 Onsite Blk 121 26.08 0.28 26.36 0.30 27.18 Water Use: The proposed potable water and wastewater for the project will be provided by Okeechobee Utility Authority. The wastewater will be by septic tank. There has been no Consumptive Water Use permit issued nor applied for this project. There are no existing wells onfite. Off -Site Drainage: There is no offsite flow onto this property. Flood Plain Analysis: As shown on the attached FEMA Panel 12093C0480C,property are in Zone X (Area of Minimal Flood Hazard) which is at area of minimal flood hazard. Nutrient Analysis: As previously stated, the project proposes to provide 150% of the required water quality treatment volume in the dry detention system in order to meet the nutrient removal requirements. Construction Recommendations: Runoff and/or any water generated by short-term dewatering during construction will be contained on -site. However, there is some potential for transport of sediment to off -site areas should heavy rainfall occur. In order to reduce the potential of any off -site transport of sediment or turbidity we recommend installation and maintenance of temporary silt fence around the perimeter of the proposed project until site work has been completed and the site has been stabilized. Conclusions: In my professional opinion, the proposed construction should have no impact to existing drainage patterns off -site and should have no impact on off -site areas. The recommendations above should be followed during and after the site work until such time as the ground surface has been adequately stabilized to prevent the off -site transport of any soil or suspended solids. The proposed design and construction will comply with applicable state and local requirements. Glenwood Park Apartment Complex No. 2019-040 Drainage Calculations Basin Information For: Glenwood Park Blk 110 Total Basin Area = 2.07 ac Native Area = 0.00 ac Wetland Buffer / Preserve = 0.00 ac Total Basin Area (water quality) = 2.07 ac Impervious Area Roofline/Bldg. = 0.35 ac Wetland = 0.00 ac Lakes = 0.00 ac Pavement/Sidewalk = 0.44 ac Total Impervious Area = 0.79 ac Pervious Area Dry Detention = 0.21 ac Green = 1.07 ac Total Pervious Area = 1.28 ac Percent Impervious = 38.2% Adjusted Soil Storage = 0.24 in Calculated SCS Curve Number = 95 Time of Concentration = 10.00 min Water Quality Calculation 1/2" Pretreatment x Parking Area = 0.09 ac-ft 1" treatment x Project Area = 0.17 ac-fit Runoff from 2.5"x % net Impervious - SFWMD criteria = 0.11 ac-ft Required Water Quality Volume = 0.17 ac-ft Impaired Water body multiplier = 1.13 .75*1.5 Adjusted Required Water Quality Volume = 0.19 ac-ft 0.5 Water quality stage (0.09703125 ac-ft) = 24.24 ft-NGVD Water Quality Stage = 24.55 ft-NGVD Stage Storage Calculations for Basin Glenwood Park Blk 110 Land use Category Storage Type Area (ac.) From Elev. To Elev. Cumulative Stage -Storage (ae-ft) 23.50 24.00 24.50 25.00 1 25.50 26.00 1 26.50 27.00 27.50 28.00 28.50 Buildings Vertical 0.35 28.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 Dry Detention Bottom Vertical 0.01 23.33 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 Dry Detention Slopes Linear 0.21 23.33 25.00 0.00 0.03 0.09 0.18 0.28 0.39 0.49 0.60 0.70 0.81 0.91 Pavement Linear 0.44 27.50 28.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.33 Green Linear 1.07 24.00 26.00 0.00 0.00 0.07 0.27 0.60 1.07 1.61 2.14 2.68 3.21 3.75 Total: 1 2.08 1 1 Totals: 1 0.001 0.031 0.16 0.46 0.90 1.48 2.131 2.771 3.421 4.17 5.07 8/19/2022 F:12021-014 Mitch Stephens Apartments (COO)\04-Calcs12021-014 site info - 20220817.xis Glenwood Park Apartment Complex No. 2019-040 Drainage Calculations Basin Information For: Glenwood Park Blk 121 Total Basin Area = 2.20 ac Native Area = 0.00 ac Wetland Buffer / Preserve = 0.00 ac Total Basin Area (water quality) = 2.20 ac Impervious Area Roofline/Bldg. = 0.35 ac Wetland = 0.00 ac Lakes = 0.00 ac Pavement/Sidewalk = 0.46 ac Total Impervious Area = 0.81 ac Pervious Area Dry Detention = 0.22 ac Green = 1.17 ac Total Pervious Area = 1.39 ac Percent Impervious = 36.8% Adjusted Soil Storage = 0.25 in Calculated SCS Curve Number = 95 Time of Concentration = 10.00 min Water Quality Calculation 1/2" Pretreatment x Parking Area = 0.09 ac-ft 1" treatment x Project Area = 0.18 ac-fit Runoff from 2.5"x % net Impervious - SFWMD criteria = 0.11 ac-ft Required Water Quality Volume = 0.18 ac-ft Impaired Water body multiplier = 1.13 .75*1.5 Adjusted Required Water Quality Volume = 0.21 ac-ft 0.5 Water quality stage (0.103125 ac-ft) = 25.25 ft-NGVD Water Quality Stage = 25.56 ft-NGVD Stage Storage Calculations for Basin Glenwood Park Blk 121 Land use Category Storage Type Area (ac.) From Elev. To Elev. Cumulative Stage -Storage (ae-ft) 24.50 25.00 25.50 26.00 1 26.50 27.00 1 27.50 28.00 28.50 29.00 29.50 Buildings Vertical 0.35 28.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.21 0.38 Dry Detention Bottom Vertical 0.01 24.33 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.04 0.05 0.05 Dry Detention Slopes Linear 0.21 24.33 26.00 0.00 0.03 0.09 0.18 0.28 0.39 0.49 0.60 0.70 0.81 0.91 Pavement Linear 0.46 27.50 28.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.35 0.58 0.81 Green Linear 1.17 25.00 27.00 0.00 0.00 0.07 0.29 0.66 1.17 1.76 2.34 2.93 3.51 4.10 Total: 1 2.20 1 1 Totals: 1 0.001 0.031 0.17 0.48 0.96 1.58 2.281 3.091 4.051 5.15 6.25 8/19/2022 F:12021-014 Mitch Stephens Apartments (COO)\04-Calcs12021-014 site info - 20220817.xis U.S. Fish and Wildlife Service National Wetlands Inventor .-A. %% a � � all Ilk 1:3,789 s. _ 0 0.03 0.06 0.12 mi I 0 0.05 0.1 0.2 km Wetland Mapper wi May 4, 2022 Wetlands Freshwater Emergent Wetland Lake Estuarine and Marine Deepwater Freshwater Forested/Shrub Wetland ❑ Other Estuarine and Marine Wetland Freshwater Pond F-] Riverine w as • �wr S Ma o"a�L S, A : This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. National Wetlands Inventory (NWI) This page was produced by the NWI mapper National Flood Hazard Layer FIRMette 80o50'W 270155"N L t ti E `4A.6 �F I r � FEMA Lz -GOP FLOOD V4f #1 on 1 Feet - ZorieAE ..�. "L. (EL'16 Feet) �` Mir # * -AM 49 #itss •.t` Pi 01T37S R35E 516` �GITY OF OIKEECHOBEE AREA OF FAS 1 i Or lAr' PORT L r * WL � IF x ,W b , ri T97S R35ES21 4 T37S R35E S15 IININ1A FLOOD HAZARD . I r4 s k #AM- r 4 T37S R35E S22 — y * 0 250 500 1,000 1,500 2,000 Basemap: USGS National Map: Orthoimagery. Data refreshed October, 2020 Legend SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Without Base Flood Elevation (BFE) Zone A, V, A99 SPECIAL FLOOD With BFE or Depth Zone AE, AO, AH, VE, AR HAZARD AREAS Regulatory Floodway OTHER AREAS OF FLOOD HAZARD 0.2%Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mile zone x _Future Conditions 1% Annual Chance Flood Hazard zonex Area with Reduced Flood Risk due to Levee. See Notes. zone x Area with Flood Risk due to Leveezone D NO SCREEN Area of Minimal Flood Hazard zonex Q Effective LOMRs OTHER AREAS Area of Undetermined Flood Hazard zone GENERAL -- - - Channel, Culvert, or Storm Sewer STRUCTURES IIIIIII Levee, Dike, or Floodwall cl Cross Sections with 1% Annual Chance 17•5 Water Surface Elevation a - - - Coastal Transect ^-^^-5n— Base Flood Elevation Line (BFE) Limit of Study Jurisdiction Boundary — --- Coastal Transect Baseline OTHER _ Profile Baseline FEATURES Hydrographic Feature Digital Data Available N No Digital Data Available MAP PANELS Unmapped QThe pin displayed on the map is an approximate point selected by the user and does not represent an authoritative property location. This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. The basemap shown complies with FEMA's basemap accuracy standards The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 5/4/2022 at 10:28 AM and does not reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or become superseded by new data over time. This map image is void if the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation date, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for regulatory purposes. 3 516920 516950 27' 14' 53" N Hydrologic Soil Group —Okeechobee County, Florida (Hydrologic Soil Group) 516980 517010 517040 517070 r - *I f 8 k-r'rI�•• � i. — Soil Map ' e valid at this scale. 27" 14' 44" N I ~ 516920 516950 516980 517010 517040 3 Map Scale: 1:1,300 if printed on A portrait (8.5" x 11") sheet. Meters N 0 15 30 60 90 Feet 0 50 100 200 300 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84 USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey R 53 517070 517100 3 M V 5/4/2022 Page 1 of 4 27' 14' 44" N Hydrologic Soil Group —Okeechobee County, Florida (Hydrologic Soil Group) MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons 0 A 0 A/D 0 B 0 B/D C 0 C/D 0 D Not rated or not available Soil Rating Lines r r A r r A/D r B B/D r r C 0 C/D r r D r r Not rated or not available Soil Rating Points 0 A 0 A/D ■ B ■ B/D MAP INFORMATION p C The soil surveys that comprise your AOI were mapped at 1:24,000. 0 C/D 0 D Warning: Soil Map may not be valid at this scale. p Not rated or not available Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil Water Features line placement. The maps do not show the small areas of Streams and Canals contrasting soils that could have been shown at a more detailed scale. Transportation §_§_+ Rails Please rely on the bar scale on each map sheet for map #%-0 Interstate Highways measurements. US Routes Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Major Roads Coordinate System: Web Mercator (EPSG:3857) Local Roads Maps from the Web Soil Survey are based on the Web Mercator Background projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the ® Aerial Photography Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Okeechobee County, Florida Survey Area Data: Version 19, Aug 26, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 25, 2019—Jan 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. UU� Natural Resources Web Soil Survey 5/4/2022 � Conservation Service National Cooperative Soil Survey Page 2 of 4 Hydrologic Soil Group —Okeechobee County, Florida Hydrologic Soil Group Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 11 Immokalee fine sand, 0 to 2 percent slopes B/D 5.2 100.0% 100.0% Totals for Area of Interest 5.2 Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified usDA Natural Resources Web Soil Survey 5/4/2022 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group —Okeechobee County, Florida Hydrologic Soil Group Tie -break Rule: Higher uSDA Natural Resources Web Soil Survey 5/4/2022 Conservation Service National Cooperative Soil Survey Page 4 of 4 3 m 516920 516950 27' 14' 53" N Depth to Water Table —Okeechobee County, Florida (Depth of Water Table) 516980 517010 517040 517070 -k lr 5 .... — Soil Map 'i e valid at this scale. 27' 14'44" N i y 516920 516950 516980 517010 517040 3 Map Scale: 1:1,300 if printed on A portrait (8.5" x 11") sheet. Meters N 0 15 30 60 90 Feet 0 50 100 200 300 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84 USDA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 517070 3 M m 517100 �} 27° 14' 57 N 93 R 53 27' 14' 44" N 517100 3 M V 5/4/2022 Page 1 of 3 Depth to Water Table —Okeechobee County, Florida (Depth of Water Table) MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons 0 0-25 25-50 0 50 - 100 100 - 150 150 - 200 0 > 200 0 Not rated or not available Soil Rating Lines 0 - 25 r r 25-50 r r 50 - 100 r 100 - 150 r r 150 - 200 ~ > 200 im 0 Not rated or not available Soil Rating Points 0-25 0 25-50 p 50 -100 0 100 - 150 0 150 - 200 > 200 0 Not rated or not available Water Features Streams and Canals Transportation §_§_+ Rails W%op Interstate Highways US Routes Major Roads Local Roads Background 1W Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Okeechobee County, Florida Survey Area Data: Version 19, Aug 26, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 25, 2019—Jan 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. UU� Natural Resources Web Soil Survey 5/4/2022 � Conservation Service National Cooperative Soil Survey Page 2 of 3 Depth to Water Table —Okeechobee County, Florida Depth of Water Table Depth to Water Table Map unit symbol Map unit name Rating (centimeters) Acres in AOI Percent of AOI 11 Immokalee fine sand, 0 31 to 2 percent slopes Totals for Area of Interest 5.2 5.2 100.0% 100.0% Description "Water table" refers to a saturated zone in the soil. It occurs during specified months. Estimates of the upper limit are based mainly on observations of the water table at selected sites and on evidence of a saturated zone, namely grayish colors (redoximorphic features) in the soil. A saturated zone that lasts for less than a month is not considered a water table. This attribute is actually recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A "representative" value indicates the expected value of this attribute for the component. For this soil property, only the representative value is used. Rating Options Units of Measure: centimeters Aggregation Method: Dominant Component Component Percent Cutoff. None Specified Tie -break Rule: Lower Interpret Nulls as Zero: No Beginning Month: January Ending Month: December usDA Natural Resources Web Soil Survey 5/4/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 S m 516920 27° 14 53" N K pM Depth to Any Soil Restrictive Layer —Okeechobee County, Florida (Depth to Any Soil Restrictive Layer) 516950 516980 517010 517040 517070 11 — Soil Map ed-t. this scale. 27" 14' 44" N - - 516920 516950 516980 517010 517040 3 Map Scale: 1:1,300 if printed on A portrait (8.5" x 11") sheet. Meters N 0 15 30 60 90 Feet 0 50 100 200 300 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: L TM Zone 17N WGS84 UsDA Natural Resources Web Soil Survey �iiiliiii6 Conservation Service National Cooperative Soil Survey M m 517100 27° 14' 53" N o_ �i R 53 27° 14' 44" N 517070 517100 3 v 5/4/2022 Page 1 of 3 Depth to Any Soil Restrictive Layer —Okeechobee County, Florida (Depth to Any Soil Restrictive Layer) MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons 0 0-25 25-50 0 50 - 100 100 - 150 150 - 200 0 > 200 0 Not rated or not available Soil Rating Lines 0 - 25 r r 25-50 r r 50 - 100 r 100 - 150 r r 150 - 200 ~ > 200 im 0 Not rated or not available Soil Rating Points 0-25 0 25-50 p 50 -100 0 100 - 150 0 150 - 200 > 200 0 Not rated or not available Water Features Streams and Canals Transportation §_§_+ Rails W%op Interstate Highways US Routes Major Roads Local Roads Background 1W Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Okeechobee County, Florida Survey Area Data: Version 19, Aug 26, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 25, 2019—Jan 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. UU� Natural Resources Web Soil Survey 5/4/2022 � Conservation Service National Cooperative Soil Survey Page 2 of 3 Depth to Any Soil Restrictive Layer —Okeechobee County, Florida Depth to Any Soil Restrictive Layer Depth to Any Soil Restrictive Layer Map unit symbol Map unit name Rating (centimeters) Acres in AOI Percent of AOI 11 Immokalee fine sand, 0 >200 to 2 percent slopes Totals for Area of Interest 5.2 100.0% 5.2 100.0% Description A "restrictive layer" is a nearly continuous layer that has one or more physical, chemical, or thermal properties that significantly impede the movement of water and air through the soil or that restrict roots or otherwise provide an unfavorable root environment. Examples are bedrock, cemented layers, dense layers, and frozen layers. This theme presents the depth to any type of restrictive layer that is described for each map unit. If more than one type of restrictive layer is described for an individual soil type, the depth to the shallowest one is presented. If no restrictive layer is described in a map unit, it is represented by the "greater than 200" depth class. This attribute is actually recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A "representative" value indicates the expected value of this attribute for the component. For this soil property, only the representative value is used. Rating Options Units of Measure: centimeters Aggregation Method: Dominant Component Component Percent Cutoff. None Specified Tie -break Rule: Lower Interpret Nulls as Zero: No usDA Natural Resources Web Soil Survey 5/4/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Input Summary Report for AdICPR ==== Basins Name: Onsite B1k110 Group: BASE Unit Hydrograph: Uh256 Rainfall File: Rainfall Amount(in): 0.000 Area(ac): 2.070 Curve Number: 95.00 DCIA(%): 100.00 Node: Onsite Blk 110 Status: Onsite Type: SCS Unit Hydrograph CN Peaking Factor: 256.0 Storm Duration(hrs): 0.00 Time of Conc(min): 10.00 Time Shift(hrs): 0.00 Max Allowable Q(cfs): 999999.000 ---------------------------------------------------------------------------------------------------- Name: Onsite Blkl21 Node: Onsite Blk 121 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 2.200 Time Shift(hrs): 0.00 Curve Number: 95.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 100.00 ==== Nodes Name: Offsite Base Flow(cfs): 0.000 Init Stage(ft): 19.000 Group: BASE Warn Stage(ft): 25.000 Type: Time/Stage Time(hrs) Stage(ft) ------------------------------ 0.00 19.000 72.00 19.000 125.00 19.000 500.00 19.000 ------------------------------------------------------------------------------------------ Name: Onsite Blk 110 Base Flow(cfs): 0.000 Init Stage(ft): 23.000 Group: BASE Warn Stage(ft): 28.500 Type: Stage/Volume 0.00 Stage(ft) Volume(af) 23.500 0.0000 24.000 0.0300 24.500 0.1600 25.000 0.4600 25.500 0.9000 26.000 1.4800 26.500 2.1300 27.000 2.7700 27.500 3.4200 28.000 4.1700 28.500 5.0700 ------------------------------------------------------------------------------------------ Name: Onsite Blk 121 Base Flow(cfs): 0.000 Init Stage(ft): 24.000 Group: BASE Warn Stage(ft): 28.500 Type: Stage/Volume 0.00 Stage(ft) Volume(af) 24.500 0.0000 25.000 0.0300 25.500 0.1700 26.000 0.4800 26.500 0.9600 27.000 1.5800 27.500 2.2800 28.000 3.0900 28.500 4.0500 29.000 5.1500 29.500 6.2500 Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page I of 4 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Input Summary Report for AdICPR ___= Drop Structures Name: CS-1 Group: BASE From Node: Onsite Blk 110 Length(ft): 32.00 To Node: Offsite Count: 1 UPSTREAM DOWNSTREAM Geometry: Circular Circular Span(in): 18.00 18.00 Rise(in): 18.00 18.00 Invert(ft): 23.330 23.300 Manning's N: 0.025000 0.025000 Top Clip(in): 0.000 0.000 Bot Clip(in): 0.000 0.000 Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall *** Weir 1 of 2 for Drop Structure CS-1 *** Count: 1 Type: Horizontal Flow: Both Geometry: Rectangular Span(in): 24.00 Rise(in): 36.00 *** Weir 2 of 2 for Drop Structure CS-1 *** Count: 1 Type: Vertical: Mavis Flow: Both Geometry: Circular Span(in): 3.00 Rise(in): 3.00 Friction Equation: Average Conveyance Solution Algorithm: Automatic Flow: Both Entrance Loss Coef: 0.500 Exit Loss Coef: 0.900 Outlet Ctrl Spec: Use do or tw Inlet Ctrl Spec: Use do Solution Incs: 10 Bottom Clip(in): 0.000 Top Clip(in): 0.000 Weir Disc Coef: 3.200 Orifice Disc Coef: 0.600 Invert(ft): 26.500 Control Elev(ft): 26.500 Bottom Clip(in): 0.000 Top Clip(in): 0.000 Weir Disc Coef: 3.200 Orifice Disc Coef: 0.600 Invert(ft): 23.500 Control Elev(ft): 23.500 TABLE TABLE ---------------------------------------------------------------------------------------------------- Name: CS-2 From Node: Onsite Blk 121 Length(ft): 29.00 Group: BASE To Node: Offsite Count: 1 UPSTREAM DOWNSTREAM Friction Equation: Average Conveyance Geometry: Circular Circular Solution Algorithm: Automatic Span(in): 18.00 18.00 Flow: Both Rise(in): 18.00 18.00 Entrance Loss Coef: 0.500 Invert(ft): 24.330 24.300 Exit Loss Coef: 0.900 Manning's N: 0.025000 0.025000 Outlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do Bot Clip(in): 0.000 0.000 Solution Incs: 10 Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall *** Weir 1 of 2 for Drop Structure CS-2 *** Count: 1 Type: Horizontal Flow: Both Geometry: Rectangular Span(in): 24.00 Rise(in): 36.00 *** Weir 2 of 2 for Drop Structure CS-2 *** Count: 1 Type: Vertical: Mavis Flow: Both Geometry: Circular Span(in): 3.00 Rise(in): 3.00 Bottom Clip(in): 0.000 Top Clip(in): 0.000 Weir Disc Coef: 3.200 Orifice Disc Coef: 0.600 Invert(ft): 27.000 Control Elev(ft): 27.000 Bottom Clip(in): 0.000 Top Clip(in): 0.000 Weir Disc Coef: 3.200 Orifice Disc Coef: 0.600 Invert(ft): 24.500 Control Elev(ft): 24.500 TABLE TABLE Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page 2 of 4 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Input Summary Report for AdICPR ___= Hydrology Simulations Name: 100YR3D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\100YR3D.R32 Override Defaults: Yes Storm Duration(hrs): 72.00 Rainfall File: Sfwmd72 Rainfall Amount(in): 10.00 Time(hrs) Print Inc(min) --------------- --------------- 50.000 10.00 100.000 5.00 ---------------------------------------------------------------------------------------------------- Name: 10YR1D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\10YR1D.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 5.00 Time(hrs) Print Inc(min) --------------- --------------- 10.000 10.00 24.000 5.00 100.000 10.00 ---------------------------------------------------------------------------------------------------- Name: 25YR3D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\25YR3D.R32 Override Defaults: Yes Storm Duration(hrs): 72.00 Rainfall File: Sfwmd72 Rainfall Amount(in): 9.00 Time(hrs) Print Inc(min) --------------- --------------- 50.000 10.00 100.000 5.00 400.000 10.00 ___= Routing Simulations_________________________________________________________________ Name: 100YR3D Hydrology Sim: 100YR3D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\100YR3D.I32 Execute: No Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 100.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 50.000 120.000 100.000 120.000 Group Run --------------- ----- BASE Yes ---------------------------------------------------------------------------------------------------- Name: 10YR1D Hydrology Sim: 10YR1D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\10YR1D.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 100.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page 3 of 4 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Input Summary Report for AdICPR Time(hrs) Print Inc(min) --------------- --------------- 10.000 120.000 24.000 120.000 100.000 120.000 Group Run --------------- ----- BASE Yes ---------------------------------------------------------------------------------------------------- Name: 25YR3D Hydrology Sim: 25YR3D Filename: F:\2021-014 Mitch Stephens Apartments (COO)\04-Calcs\ICPR\sims\25YR3D.I32 Execute: Yes Restart: No Alternative: No Max Delta Z(ft): 1.00 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 Min Calc Time(sec): 0.5000 Boundary Stages: Time(hrs) Print Inc(min) --------------- --------------- 50.000 120.000 100.000 120.000 400.000 120.000 Group Run --------------- ----- BASE Yes Patch: No Delta Z Factor: 0.00500 End Time(hrs): 400.00 Max Calc Time(sec): 60.0000 Boundary Flows: Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page 4 of 4 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Basin Summary Report for AdICPR Basin Name: Onsite B1k110 Group Name: BASE Simulation: 100YR3D Node Name: Onsite Elk 110 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Sfwmd72 Rainfall Amount (in): 10.000 Storm Duration (hrs): 72.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.070 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 60.02 Flow Max (cfs): 9.193 Runoff Volume (in): 9.897 Runoff Volume (ft3): 74363.803 Basin Name: Onsite B1kl21 Group Name: BASE Simulation: 100YR3D Node Name: Onsite Elk 121 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Sfwmd72 Rainfall Amount (in): 10.000 Storm Duration (hrs): 72.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.200 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 60.02 Flow Max (cfs): 9.770 Runoff Volume (in): 9.897 Runoff Volume (ft3): 79033.993 Basin Name: Onsite B1k110 Group Name: BASE Simulation: 10YR1D Node Name: Onsite Elk 110 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 5.000 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.070 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 12.04 Flow Max (cfs): 6.219 Runoff Volume (in): 4.898 Runoff Volume (ft3): 36806.693 Basin Name: Onsite Blkl21 Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page I of 2 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Basin Summary Report for AdICPR Group Name: BASE Simulation: 10YR1D Node Name: Onsite Elk 121 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Flmod Rainfall Amount (in): 5.000 Storm Duration (hrs): 24.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.200 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 12.04 Flow Max (cfs): 6.610 Runoff Volume (in): 4.898 Runoff Volume (ft3): 39118.224 Basin Name: Onsite Blk110 Group Name: BASE Simulation: 25YR3D Node Name: Onsite Elk 110 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Sfwmd72 Rainfall Amount (in): 9.000 Storm Duration (hrs): 72.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.070 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 60.02 Flow Max (cfs): 8.274 Runoff Volume (in): 8.897 Runoff Volume (ft3): 66852.306 Basin Name: Onsite Blkl21 Group Name: BASE Simulation: 25YR3D Node Name: Onsite Elk 121 Basin Type: SCS Unit Hydrograph Unit Hydrograph: Uh256 Peaking Fator: 256.0 Spec Time Inc (min): 1.33 Comp Time Inc (min): 1.33 Rainfall File: Sfwmd72 Rainfall Amount (in): 9.000 Storm Duration (hrs): 72.00 Status: Onsite Time of Conc (min): 10.00 Time Shift (hrs): 0.00 Area (ac): 2.200 Vol of Unit Hyd (in): 1.000 Curve Number: 95.000 DCIA (%): 100.000 Time Max (hrs): 60.02 Flow Max (cfs): 8.793 Runoff Volume (in): 8.897 Runoff Volume (ft3): 71050.760 Interconnected Channel and Pond Routing Model (ICPR) C2002 Streamline Technologies, Inc. Page 2 of 2 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Node Maximum Report for AdICPR Max Time Max Warning Max Delta Max Surf Max Time Max Max Time Max Name Group Simulation Stage Stage Stage Stage Area Inflow Inflow Outflow Outflow hrs ft ft ft ft2 hrs cfs hrs cfs Offsite BASE 10YRlD 0.00 19.000 25.000 0.0000 0 16.12 0.553 0.00 0.000 Onsite Blk 110 BASE 10YRlD 16.02 25.068 28.500 -0.5000 33894 12.00 6.070 16.02 0.275 Onsite Blk 121 BASE 10YRlD 16.24 26.084 28.500 -0.5000 36673 12.00 6.451 16.24 0.277 Offsite BASE 25YR3D 0.00 19.000 25.000 0.0000 0 64.35 0.603 0.00 0.000 Onsite Blk 110 BASE 25YR3D 64.31 25.345 28.500 -0.5000 40658 60.00 8.250 64.31 0.301 Onsite Blk 121 BASE 25YR3D 64.40 26.361 28.500 -0.5000 44155 60.00 8.768 64.40 0.303 Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 1 of 1 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Node Maximum 100yr3d Report for AdICPR Max Time Max Warning Max Delta Max Surf Max Time Max Max Time Max Name Group Simulation Stage Stage Stage Stage Area Inflow Inflow Outflow Outflow hrs ft ft ft ft2 hrs cfs hrs cfs Offsite BASE 100YR3D 0.00 19.000 25.000 0.0000 0 0.00 0.000 0.00 0.000 Onsite Blk 110 BASE 100YR3D 73.00 26.188 28.500-0.5000 54560 60.00 9.147 0.00 0.000 Onsite Blk 121 BASE 100YR3D 73.00 27.177 28.500-0.5000 60426 60.00 9.721 0.00 0.000 Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 1 of 1 Glenwood Park Apartment Complex - Drainage Calculations, City of Okeechobee, FL Link Maximum Report for AdICPR Max Time Max Max Max Time Max Max Time Max Name Group Simulation Flow Flow Delta Q US Stage US Stage DS Stage DS Stage hrs cfs cfs hrs ft hrs ft CS-1 BASE 10YRlD 16.02 0.275 -0.002 CS-2 BASE 10YRlD 16.24 0.277 0.002 CS-1 BASE 25YR3D 64.31 0.301 -0.002 CS-2 BASE 25YR3D 64.40 0.303 -0.002 16.02 25.068 0.00 19.000 16.24 26.084 0.00 19.000 64.31 25.345 0.00 19.000 64.40 26.361 0.00 19.000 Interconnected Channel and Pond Routing Model (ICPR) ©2002 Streamline Technologies, Inc. Page 1 of 1