Loading...
HomeMy WebLinkAboutApplicationHearing Date: February 23, 2016 File No.: H-2016-0007 Project Name: Southridge No. 2 Request: Request for final plat consisting of forty eight (48) single family residential lots and fourteen (14) common lots on 15.01 acres of land in the R-8 and R-4 zoning districts, by Corey Barton Homes, hic. Location: The site is located south of W. Overland Road on the west side of S. Linder Road, in the Southeast '/a of Northeast '/a of Section 23, Township 3N, Range 1 W. ECEIVE JAN 2 0 2016 E �Planning Division DEVEL REVIEW APPLICATION f7Qrfrlud d��e Z -23-/( STAFF USE ONLY: Project name: Filenumber(s):,%�'1: Assigned Planner: ef.,sacl 6aIES Relatedfiles: Pr- ILI—oz; Type of Review Requested (check all that apply) ❑ Accessory Use ❑ Planned Unit Development ❑ Administrative Design Review ❑ Preliminary Plat ❑ Alternative Compliance ❑ Private Street ❑ Annexation and Zoning ❑ Property Boundary Adjustment ❑ Certificate of Zoning Compliance ❑ Rezone ❑ City Council Review ❑ Short Plat ❑ Comprehensive Plan Map Amendment ❑ Time Extension: ❑ Comprehensive Plan Text Amendment Director/ Commission/Council (circle one) ❑ Conditional Use Permit ❑ UDC Text Amendment ❑ Conditional Use Modification ❑ Vacation: Director/Commission (circle one) Director/ Council (circle ane) O.Development Agreement Modification ❑ Variance Final Plat ❑ Other ❑ Final Plat Modification Applicant Information Applicant name: Corey Barton Homes, Inc. Phone: 208.955.9900 Applicant address: 1977 E. Overland Rd. Email: City: Meridian State: ID Zip: 83642 Applicant's interest in property: VOwn ❑ Rent ❑ Optioned []Other Owner name: Corey D. Barton Owner address: 1977 E. Overland Rd. Cin,. Meridian Phone: 208.955.9900 Email: State: ID Zip: 83642 Agent/Contact name (e.g., architect, engineer, developer, representative): Firm name: The Land Group, Inc. Agent address 462 E. Shore Dr., Suite 100 City: Cagle Primary contact is: ❑ Applicant ❑ Owner VAgent/Contact Jason Densmer Phone: 208.939.4041 Email: denise@thelandgroupinc.com State: ID Zip: 83616 Subject Property Information Location/street address: Near SWC S. Linder & W. Overland Rds.Township, range, section: 3N 1 W 23 Assessor's parcel number(s): S1223142040 Total acreage: 15.01 Zoning district: R-4 Community Development . Planning Division n 33 E. Broadway Avenue, Ste. 102 Meridian, Idaho 83642 Phone: 208-884-5533 Fax: 208-888-6854 www.meridiancitv.org'pl<lnnine -1- (Rev. 0611212014) Project/subdivision name: Southridge Subdivision Phase 2 General description of proposed project/request: Final Plat for Southridge Subdivision Phase 2. 62 total lots, including 48 buildable lots and 14 common lots - Residential Subdivision. Proposed zoning district(s): R-4 Acres of each zone proposed: 15.01 Type of use proposed (check all that apply): li(Residential ❑ Office ❑ Commercial ❑ Employment ❑ Industrial ❑ Other Who will own & maintain the pressurized irrigation system in this development? Homeowner's Association Which irrigation district does this property lie within? Nampa -Meridian Irrigation District Primary irrigation source: Ridenbaugh Canal Secondary: Meridian City Square footage of landscaped areas to be irrigated (if primary or secondary point of connection is City water): 81,070 sq. ft. Residential Project Summary (if applicable) Number of residential units: 48 Number of building lots: 48 Number of common lots: 14 Number of other lots: Proposed number of dwelling units (for multi -family developments only): N/A I bedroom: 2-3 bedrooms: Minimum square footage of structure (excl. garage): Minimum property size (s.f): Gross density (Per UDC 11-1A-1): 3.2 units/acre Acreage of qualified open space: per Pre -Plat 4 or more bedrooms: Maximum building height: - Average property size (s.f.): - Net density (Per UDC 11 -IA -1): Percentage of qualified open space: Der Pre -Plat Type and calculations of qualified open space provided in acres (Per UDC 11 -3G -3B): Refer to approved Preliminary Plat Amenities provided with this development (if applicable): Multi -use pathway extension Type of dwelling(s) proposed: `single-family Detached ❑ Single-family Attached ❑ Townhouse ❑ Duplex ❑ Multi -family ❑ Vertically Integrated ❑ Other Non-residential Project Summary (if applicable) N/A Number of building lots: _ Gross floor area proposed: Hours of operation (days and hours): Total number of parking spaces provided: Authorization Print applicant name: Applicant signature: - Common lots: Other lots: Existing (if applicable): Building height: Number of compact spaces provided: Date: 01.14.2016 Community Development ■ Planning Division ■ 33 E. Broadway Avenue, Ste. 102 Meridian, Idaho 83642 Phone: 208-884-5533 Fax: 208-888-6854 www.meridiancilv.ornll7tannina_ -2- (RPV. 0611212014) THE LAND GROUP, INC. January 19, 2016 Planning & Development City of Meridian 33 E. Broadway, Suite 102 Meridian, ID 83642 Re: Application for Southridge Subdivision No. 2 concerning Final Plat Application Dear Planning Division: We are pleased to submit the enclosed application for approval of the Final Plat of Phase 2 of the Southridge Subdivision. The project is located south of W. Overland Rd. and west of S. Linder Rd. within the City of Meridian. The project is bounded to the north by Southridge Subdivision Phase 1, to the east by S. Linder Rd., to the south by the Ridenbaugh Canal separating Southridge from Aspen Cove Subdivision and to the west by the Ridenbaugh Canal and unplatted future phases of Southridge Subdivision. Background The entire property of the Southridge Subdivision has been in front of the City for entitlement review and approval several times in the past. A Preliminary Plat, (PP -14-017), was approved July 21, 2015 for Southridge Subdivision Phases 2, 3, 4, 5 and 6 including a total of 48.56 acres with a total of 167 buildable lots and 32 common lots. Current Application With the proposed Final Plat application, all improvements necessary to serve Phase 2 of the proposed development are to be constructed. The City of Meridian can provide sanitary sewer service and domestic water for culinary and fire -protection purposes. Roadways within the proposed final plat are intended to be public and will be dedicated to the Ada County Highway District. Storm water from the project area will be collected, managed and retained in systems acceptable to ACHD within the overall Southridge development. Pressurized irrigation for the project is available from the adjacent Ridenbaugh Canal (Nampa -Meridian Irrigation District) and will be delivered through the existing pressure irrigation system owned and operated by the Southridge Homeowner's Association. The Homeowner's Association will also own and maintain the various common areas throughout the project, which will provide open space amenities to the future residents. In addition, a public multi -use pathway will be constructed through this phase of the project in accordance with the City's Master Pathway Plan. As future phases of Southridge develop, further common area open spaces and amenities will be developed as required by the project's Development Agreement. Site Planning � Landscape Architecture Civil Engineering - Golf Course Irrigation & Engineering Graphic Design • Surveying 467 F_ Shnr. nriva. 1,mtP I nn - ragla. Idahn R4616 . P JOR_g99.4O41 • F 7OR 43q 4445 � wmiw.thatanriornuninr rnm January 19, 2016 Page 2 of 2 The proposed Final Plat is in conformance with: • The approved preliminary plat and meets all the requirements or conditions thereof. • All the requirements and provisions of the UDC. • The acceptable engineering, architectural and surveying practices and local standards. We appreciate the opportunity to present this application and look forward to providing any additional information required for City of Meridian application process. If you have any questions, please do not hesitate to contact our office, 208.939.4041 or email jason@thelandgroupinc.com Sincerely, so Densmer ipal & Project Engineer The Land Group, Inc. Site Planning -Landscape Architecture Civil Engineering -Golf Course Irrigation & Engineering -Graphic Design Surveying 462 E. Shore Drive, Suite 100 • Eagle, Idaho 83616 - P 208.939.4041 • F 208.939.4445-www.thelandgroupinc.com January 15, 2016 Project No. 115162 THE LAND GROUP, INC. SOUTHRIDGE SUBDIVISION PHASE 2 FINAL PLAT DESCRIPTION A parcel of land located in the Southeast One Quarter of the Northeast One Quarter of Section 23, Township 3 North, Range 1 West, Boise Meridian, Meridian, Ada County, Idaho, being more particularly described as follows: Commencing at the Section Corner common to Sections 13, 14, 23 and 24 of said Township 3 North, Range 1 West, (from which point the East One Quarter Section Corner of said Section 23 bears South 00041'26" West, 2650.67 feet distant); Thence from said Section Corner, South 00°41'26" West, a distance of 1602.93 feet on the easterly line of said Section 23; Thence North 89018'32" West, a distance of 80.46 feet to the southwest corner of Lot 1, Block 5 of Southridge Subdivision Phase 1, as same is shown on the Plat thereof recorded in Book 104 of Plats at Page 14056 of Ada County Records, said point being an the easterly right -of Way line of South Knotty Timber Avenue and also being the POINT OF BEGINNING; Thence South 00041'28" West a distance of 76.03 feet to a point of curve; Thence 46.51 feet on the arc of a curve to the right, said curve having a radius of 76.00 feet, a central angle of 35"03'36", a chord bearing of South 18013'16" West, and a chord length of 45.78 feet; Thence South 54'50'25" East a distance of 25.78 feet; Thence South 00°41'26" West a distance of 293.11 feet; Thence North 89"04'41" West a distance of 110.00 feet; Thence South 00'41'26" West a distance of 569.96 feet; Thence North 89°02'56" West a distance of 120.36 feet to a point of curve on the centerline of the Ridenbaugh Canal; Thence on the centerline of the Ridenbaugh Canal the following courses and distances: Thence 287.73 feet an the arc of a curve to the left, said curve having a radius of 600.00 feet, a central angel of 27°28'35", a chord bearing of North 46"15'10" West, and a chord length of 284.98 feet; Thence North 59059'27" West, a distance of 73.72 feet to a point of curve; Thence 90.21 feet on the arc of a curve to the left, said curve having a radius of 120.00 feet, a central angel of 43°04'24 a chord bearing of North 81"31'39" West, and a chord distance of 88.10 feet; Thence South 76456'09" West, a distance of 93.79 feet to a point of curve; Thence 83.95 feet on the arc of a curve to the right, said curve having a radius of 100.00 feet, a central angle of 48°06'06", a chord bearing of North 79'00'48" West, and a chord distance of 81.51 feet; Thence North 54°57'45" West, a distance of 108.31 feet; Thence leaving the centerline of the Ridenbaugh Canal, North 12'54'43" East a distance of 63.07 feet; Thence North 00'25'32" East a distance of 673.44 feet, Thence North 89°34'28" West a distance of 101.62 feet to a point of curve; Thence 27.08 feet on the arc of a curve to the right, said curve having a radius of 125.00 feet, a central angle of 12'24'52", a chord bearing North 27043'59" East, and a chord length of 27.03 feet; Site Planning • Landscape Architecture * Civil Engineering • Golf Course Irrigation & Engineering • Graphic Design • Surveying Thence North 33°56'25" East a distance of 25.81 feet to a point of curve on the southerly boundary line of said Southridge Subdivision Phase 1; Thence on the southerly boundary line of said Southridge Subdivision Phase i for the following courses and distances; Thence 30.96 feet on the arc of a curve to the right, said curve having a radius of 20.00 feet, a central angle of 88`40'56", a chord bearing North 78°16'53" East, and a chord length of 27.96 feet to a point of reverse curve; Thence 161.30 feet on the arc of a curve to the left, said curve having a radius of 765.00 feet, a central angle of 12'04'50", a chord bearing South 63'25'04"East, and a chord length of 161.00 feet to a point of reverse curve; Thence 24.39 feet on a curve to the right, said curve having a radius of 20.00 feet, a central angle of 69°53'02", a chard bearing South 34"30'59" East, and a chord length of 22.91 feet; Thence South 61013'36" East a distance of 56.81 feet; Thence 36.04 feet on the arc of a curve to the right, said curve having a radius of 20.00 feet, a central angle of 103°15'16", a chord bearing North 52°03'10" East, and a chord length of 31.36 feet to a point of reverse curve; Thence 132.04 feet on the arc of a curve to the left, said curve having a radius of 765.00 feet, a central angle of 09"53'22", a chord bearing South 81015'53" East, and a chord length of 131.88 feet; Thence South 86'12'34" East a distance of 29.96 feet to a point of curve; Thence 15.26 feet on the arc of a curve to the right, said curve having a radius of 325.00 feet, a central angle of 02"41'23", a chord bearing South 87033'16" East, and a chord length of 15.26 feet to a point of reverse curve; Thence 31.18 feet on the arc of a curve to the right, said curve having a radius of 20.00 feet, a central angle of 89019'29", a chord bearing of South 44'14'13" East, and a chord length of 28.12 feet; Thence South 89°34'28" East a distance of 50.00 feet; Thence North 00°25'32" East a distance of 48.98 feet; Thence South 89°34'27" East a distance of 333.99 feet; Thence South 89018'32" East a distance of 69.02 feet to the point of beginning. The above described parcel contains 15.01 acres more or less. PREPARED 8Y: THE LAND GROUP, INC. James R. Washburn Site Planning • landscape Architecture - Civil Engineering Golf Course Irrigation & Engineering Graphic Design • Surveying ADA COUNTY RECORDER Christopher D. Rich 2014-102226 BOISE IDAHO Pgs=7 BONNIE OBERBILLIG 12/18/2014 04:24 PM FIDELITY NATIONAL TITLE - BOISE $28.00 QUITCLAIM DEED FOR VALUE RECEIVED Corey Barton Homes, Inc., an Idaho Corporation, dba CBH Homes do(es) hereby convey, release and forever quitclaim unto: Corey Barton Homes, Inc., an Idaho Corporation, dba CBH Homes whose current address Is: 1977 E. Overland Rd., Meridian, ID 83642 the following described premises, to -wit: See attached Exhibit "A' attached hereto and made a part hereof Date: December k1, 2014 Corey Barton Homes, Inc., dba CBH Homes 2 State of Idaho pp County ofFG�� On this d i5 - day of December, 2014, before me the undersigned, a Notary Public in and for sald state, personally appeared Corey D. Barton known or identified to me to be the President of Corey Barton Homes, Inc. the corporation that executed the Instrument or the person(s) who executed the Instrument on behalf of said corporation, and acknowledged to me that such corporation executed the same. Notary Public Name: � o S� � ' 4;=' TA,Z-7�4& 1�. Residing at bAn:< ; My Commission Expires: b-05_140 r ° POFD, Order No THIS INSTRUMENT FILED FOR RECORD Deed -Quit Claim BY FIDELITY NATIONAL TITLE AS AN 12/16/14 3:20 PM ACCOMMODATION ONLY. 1T HAS NOT BEEN EXAMINEDASTO ITS EXECUTION OR AS TO ITS AFFECT UPON THE TITLE. �Pv September 9, 2014 Project No. 114042 Southridge PBA Parcel A Description 49.90 Acres 1111. LAND GB(It V, INC. Exhlblt "A" Page 1 of 4 A tract of land situated In the North One Half and the Northwest One Quarter of the Southeast One Quarter of section 23, Township 3 North, Range 1 West, Boise Meridian, City of Meridian, Ada County, Idaho, described as follows: Commencing at the Northeast Corner of said Section 23, said corner being South 89.19'41" East a distance of 2,661.73 feet from the North One Quarter Corner of said Section 23, thence following the easterly line of said Section 23, South 00'41'26" West a distance of 2,600.67 feet; Thence leaving said easterly line, North 89'02'56" West a distance of 48.00 feet to the westerly right- of-way line of South Linder Road, said point being the POINT OF BEGINNING. Thence leaving said westerly right-of-way line and following the northerly right-of-way line of Aspen Cove Drive, North 89'02'56" West a distance of 255.36 feet to a point on the centerline of the Ridenbaugh Canal; Thence following said centerline of the Ridenbaugh Canal along the following 10 courses: 1. 287.73 feet along the arc of a circular curve to the left, said curve having a radius of 600.00 feet, a central angle of 27'28135", a chord bearing of North 46'15'10" West, and a chord distance of 284.98 feet; 2. North 59059'27" West a distance of 73.72 feet; 3. 90.21 feet along the arc of a circular curve to the left, said curve having a radius of 120.00 feet, a central angle of 43'04'24", a chord bearing of North 81'31'39" West, and a chord distance of 88.10 feet; 4. South 76056'09" West a distance of 93.79 feet; S. 83.95 feet along the arc of a circular curve to the right, said curve having a radius of 100.00 feet, a central angle of 48'06'06", a chord bearing of North 79'00'48" West, and a chord distance of 81.51 feet; 6. North 54657145" West a distance of 108.31 feet; 7. 90.18 feet along the arc of a circular curve to the left, said curve having a radius of 120.00 feet, a central angle of 43'03'30", a chord bearing of North 76'29'30" West, and a chord distance of 88.07 feet; 8. South 81'58'45" West a distance of 380.01 feet; 9. 160.45 feet along the arc of a circular curve to the left, said curve having a radius of 150.00 feet, a central angle of 61'17'12", a chord bearing of South 51'20'09" West, and a chord distance of 152.91 feet; .LFII/JorS(hr-+h Ou A,I-1:'-a.'.- 1 n .�,,: _ i--i�, �.,,, ,. ::r:n,r•:t5 (:3As:;.i;,r..an.;,. www.thelandzrouoinc.com w% ���., Page 2 of 4Iva III 'I'111 Ld]p GRUC 1'. INC. 10. South 20'41'33" West a distance of 218.36 feet to a point on the northerly line of Aspen Cove Subdivision, Blocks 3, 4 & 5, according to the official plat thereof, filed In Book 35 of Plats at Page 3,040, Records of Ada County, Idaho; Thence leaving said centerline and following said northerly line along the following 6 courses: 1. North 89'02'56" West a distance of 32.62 feet; 2. South 33'08'24" West a distance of 127.52 feet; 3. South 55024'04" West a distance of 417.50 feet; 4. North 70'12'07" West a distance of 47.38 feet; 5. North 25'10'44" East a distance of 367.74 feet; 6. North 89'02'56" West a distance of 34.06 feet to a point on the said centerline of the Ridenbaugh Canal; Thence leaving said northerly line and following said centerline along the following 7 courses: 1. North 32'06'19" East a distance of 21.67 feet; 2. 129.34 feet along the arc of a circular curve to the left, said curve having a radius of 150.00 feet, a central angle of 49'24'12", a chord bearing of North 07'24'13" East, and a chord distance of 125.37 feet; 3. North 17017'53" West a distance of 110.54 feet; 4. 140.75 feet along the arc of a circular curve to the right, said curve having a radius of 150.00 feet, a central angle 53'45'48", a chord bearing of North 9'35'01" East, and a chord distance of 135.64 feet; S. North 36'27'55" East a distance of 34.82 feet, 6. 389.27 feet along the arc of a circular curve to the left, said curve having a radius of 300.00 feet, a central angle of 74'20'42", a chord bearing of North 00042'26" West, and a chord distance of 362.53 feet; 7. North 37052'47" West a distance of 332.24 feet; Thence leaving said centerline, North 52'03' 57" East a distance of 184.78 feet; Thence North 52'07'13" East a distance of 35.00 feet; Thence North 37'52'47" West a distance of 61.97 feet; Thence 151.30 feet along the arc of a circular curve to the right, said curve having a radius of 225.00 feet, a central angle of 38' 31' 46", a chord bearing of North 18'36'55" West, and a chord distance of 148.47 feet; Thence North 00'38'58" East a distance of 394.08 feet, Thence South 89'29'56" East a distance of 50.00 feet; Thence South 89'19'29" East a distance of 250.00 feet; Thence South 00'38'49" West a distance of 137.22 feet; Thence 57.71 feet along the arc of a circular curve to the right, said curve having a radius of 325.00 feet, a central angle of 10010'24", a chord bearing of South 57017'04" East, and a chord distance of 57.63; Thence 94.40 feet along the arc of a circular curve to the left, said curve having a radius of 291.75 feet, a central angle of 18'32'22", a chord bearing of South 61028'03" East, and a chord distance of 93.99 feet; or illi P4�',tk :l' n'rOtC m.r. !%rr Up.r L::r wt.P.- !Jn`t'ch•n r. rtY:• J .til:: a.r r-,ra:.'rir:j nCiggrl!rr <:'rn.:r:raln rtl ryrr r'!'ytq•: s, . • 1t i r ;) n,4.i t www.thelandffroul))nc.com :(,�,r� r�Uun 'l hf;42.dG(x �i,�+ Page 3 of 4 :i 0-re-M-14 'jam ~J u 1141. LAND UnO11P. INC. Thence South 71018'33" East a distance of 261.09 feet to a point on the southerly line of Southridge Subdivision No. 1, according to the official plat thereof, flied In Book 104 of Plats at Page 14,056, Records of Ada County, Idaho along the following 22 courses; 1. South 18'41'27" West a distance of 50.00 feet to a curve; 2. 54.66 feet along the arc of a circular curve to the right, said curve having a radius of 20.00 feet,a central angle of 90'00'00", a chord bearing of South 26'18'33" East, and a chord distance of 28.28 feet, 3. South 71'18'33" East a distance of 50.00 feet, 4. 31.42 feet along the arc of a circular curve to the right, said curve having a radius of 20.00 feet, a central angle of 90000'00", a chord bearing of North 63'41'27" East, and a chord distance of 28.28 feet; S. South 71'18'33" East a distance of 16.94 feet; 6. 157.91 feet along the arc of a circular curve to the right, said curve having radius of 275.00 feet, a central angle of 32'54'01", a chord bearing of South 54'51'32" East, and a chord distance of 155.75 feet, 7. 165.46 feet along a the arc of a circular curve to the left, said curve having a radius of 765.00 feet, a central angle of 12'23'32", a chord bearing of South 44'36'18" East, and a chord distance of 165.14 feet; 8. 29.56 feet along a the arc of a circular curve to the right, said curve having a radius of 20.00 feet, a central angle of 8444'29", a chord bearing of South 08'25'50" East, and a chord distance of 26.96 feet; 9. South 52'30'58" East a distance of 50.10 feet; 10. 30.96 feet along the arc of a circular curve to the right, said curve having a radius of 20.00 feet, a central angle 88'40'56", a chord bearing of North 78'16'53" East, and a chord distance of 27.96 feet; 11. 161.30 feet along a the arc of a circular curve to the left, said curve having a radius of 765.00 feet a central angle 12'04'50", a chord bearing of South 63'25'04" East, and a chord distance of 161.00 feet; 12. 24.39 feet along the arc of a circular curve to the right, said curve having a radius of 20.00 feet, a central angle of 69'53'02", a chord bearing of South 34'30'59" East, and a chord distance of 22.91 feet; 13. South 61'13'36" East a distance of 56.81 feet; 14. 36.04 feet along the arc of a circular curve to the right, said curve having a radius of 20.00 feet, a central angle 103'15'16", a chord bearing of North 52'03'10" East, and a chord distance of 31.36 feet; 15. 132.04 feet along the arc of a circular curve to the left, said curve having a radius of 765.00 feet, a central angle of 09'53'22", a chord bearing of South 81015'53" East, and a chord distance of 131.88 feet; 16. South 86'12'34" East a distance of 29.96 feet, 17. 15.26 feet along the arc of a circular curve to the left, said curve having a radius 325.00 feet, a central angle 02'41'23", a chord bearing of South 87'33'16" East, and a chord distance of 15.26 feet; r `):F Pill-+, U,rl.11:Oil,SI RpFF•!jh Hr ._- -Irq %_'�IItQ+U!/!r �.f,�„ IhlfJ,i"�n�..11t(Iir,Prtp;/�:ilUrtlr:R ltlf!)!I'LPfllron +.l�4tr yi110 R-! '• If _a 41,' r www.thelandercuolnc.com .. ., 1•. r _rr,p1'.:'r2 .p. i ti9f�} � dP :; Itf,C!bP 1191�r1i 11Ut% 1 OAF �W. Page 4 of 4 i 'I'111: LAND (414M 1•. INC 18. 31.18 feet along the arc of a circular curve to the right, sold curve having a radius of 20.00 feet, a central angle of 89'19'29'', a chord bearing of South 44'14'13" East, and a chord distance of 28.12 feet; 19. South 89'34'28" East a distance of 50.00 feet; 20. North DO'2S'32" East a distance of 48.98 feet; 21. South 89'34'27" East a distance of 333.99 feet; 22. South 89'18'32" East a distance of 101.48 feet to a point on the said westerly right- of-way of South Linder Road; Thence leaving said southerly line and following said westerly right-of-way line, South 00041'26" West a distance of 997.52 feet to the POING OF BEGINNING. The above-described tract of land contains 49.90 acres, more or less, subject to all existing easements and rights-of-way. Prepared By: THE LAND GROUP, INC. 462 E. SHORE DRIVE, SUITE 100 ANL LAND EAGLE, IDAHO 83616 dSO� MkP- 14216 )2 9.9.2oi�/ Ar L!(!i✓'t^.u!v-.in'j E;..:I . Y'..: . J; r. �.. u 1 rrri hf, nr, r. MI i',il".: � 7 ).A I % '/cfi n.+%i!r • www.thelandarouolnc.com Title: Date: 09-05-2014 Scale: 1 inch = 300 feet File: Data and Deed Call Listing of File: Trsot 1: 49.904 Acres: 2173835 Sq Feet: Closure - s38.2045e 0.02 Feet: Precision -11338889: Perimeter - 8338 Fed 001-n89.0256w 255.36 73.72 I.S845w 380.01 011-s20.4133w 218.36 012-n89.0256w 32.62 013-533.0824w 127.52 014-555.2404w 417.50 015-00,1207w47.38 016-n25.1044e 367,74 017-n89.0256w 34.06 019-02.061%21.67 ot9;uii411*0 O�t3.117417 02�0'R-07.1753w 110.54 x02222-n36.2755e34.82_ M4=1=33 m� . 024-n37.5247w 332.24 025-m52.0357e 184.78 026-n52.0713e35.00 027-07.5247w 61.97 =i>d�is 9 'u9s us 029-M.3858094.08 030-s89.2956e50.00 031-589.1929e 250.00 032-500.3849w 137.22 ass: n=,0Q.DWW a M srZ RI*, Cfr-s°ri».mat 035-s7! .1833e 261.09 833e 50.00 56.81 29.96 054-s89.3428e 50.00 055-n00.2532e48.98 056-s89.3427e 333.99 057-589.1832e 101.48 058=s00.4126w 997.52 AFFIDAVIT OF LEGAL INTEREST STATE OF IDAHO COUNTY OF ADA Corey Barton Homes, Inc. (name) (address) (city) (state) being first duly sworn upon, oath, depose and say: 1. That I am the record owner of the property described on the attached, and I grant my permission to: The Land Group, Inc. 462 E. Shore Dr., Eagle, ID 83616 (name) (address) to submit the accompanying application(s) pertaining to that property. 2. I agree to indemnify, defend and hold the City of Meridian and its employees harmless from any claim or liability resulting from any dispute as to the statements contained herein or as to the ownership of the property which is the subject of the application. 3. 1 hereby grant permission to City of Meridian staff to enter the subject property for the purpose of site inspections related to processing said application(s). Dated this I bl�day of S42+e20I (Signature) SUBSCRIBED AND SWORN to before me the day and year first above wniiPn:— ,a 4 t N`p% (Notary Public for Idaho) ° Op�i�:8 NiltiJ _ Residing at: m Qq, n , o � ° My Commission Expires: CSS— C a , °?LOFIQ ° 33 E Broadway Suite 210 r Meridian, Idaho 83642 Phone: (208) 884-5533 0 Facsimile; (208) 888-6678 • Website: www.meridiancity.org w p C C: C Y V R U E� v F c W °p 2 v^ _ N � z m o /\ t 0 1 rl i 33ZI3 N C � N w m - N 8 H LL ptldlOd 3tl Q: m � a�o� fD7)J a G9�131 — w a W^ p C C: C Y V R U E� v F c TDTAN = Community Development Parcel Verification Date: 9/10/14 Meridian City Hall, Suite 102 33 E. Broadway Avenue Meridian, Idaho 83642 208.887.2211 The parcel information below has been researched and verified as correct by the City of Meridian Community Development Department. Project Name Parcel Numbers T/R/S: Southridge #2 PBA S1223244510 S1223131360 51223131220 S1223142035 51223212404 51223120934 3N 1W 23 Address Verification Rev: 04/23/12 -IFe L , &§(! .; w- _ ____, __.__._� _�� _._, ____ __,_| \ ........... �w m f ■■fl■ LE � \ , �' �/ ■■fl■ LE �' �/ ■■fl■ LE paras-Maao ro 11fi a + !-" lYld A+emwlla+d i j aasa Mma•153M lirlltlo •ILL101 a pgng1•EzaaraM la en axaMlw VLv'Al g 1 .$ v = N 94 S'4 £ Z 9d ua!au!P9nS e9PP41naS �! ilii & uorswp9nS aSPPY1noS u;, \ j , d • � - -YtlaY Y3m111 - a. T � �-hYMtl3B6 I1 Alli o i — — � a e I ��� 4l i I r � I �. 's. I ° Ila '�.�✓� '. I •_ b __ � I - I s al ry li • � W gANY 'F `'e rq- I -i J I Ig Ill a -fF -�'a-9tf•oH4�� r a �I °e I , 3 i N •1 �� l� I u DHM1'IIII Ntl1003a _- 3510S'1X3ML3bNtltlNlbpNfdINEXMYYELX01183E3pV/13X 3N1 X1 031tl901 8 SO �9 S 9 9 ` 1 `E `Z saseyd uaisipipgng a9pi3yanag bpi ' $ o. eoisinipgng aBpu4lnog il,j '0 d 1e1d,Lewwyald € ,1 3 _. .. aaoua3aen , -------- ---------- �'�\- I F e I I I � . r E I. II EE 1 �r -- i § _ I I I I I, I I j ,I ,I . --------------- e z 1' lk4 , i .� • i . b _ o W J W � �r `N 6 y 9 tltldel'lHSNM dee Ze01133S — — leld A3eww!la3d mo 35100 '153M33tltltltl 'NltlOX EdINSXMOI SEL X011]35 30 p/43N31LL HI tl31d9p1 �` saseyd uolSlnlpgng allpuylnog � I i�'! ' M. uolslelppi; a6p1�41nog �fii i d luld Neuiwlhaid r" I I _ iI — - � I k �! Gi -VM ip e3Yvxs tour �wu� � Al � � m r > b / v' Y •� f Pw "� p3SVHd Pape p i. L C P E dM = Y Y N ` 6 L M. Jold AAaulnlllald `E `Z saseyd uoisiAipgnS aopuy{nos'0 OHMI UUM tlatl MMIUM 33103 'B3M I3ONN'NINON EdIN$NMa1'EZ ND11335 da 0113N 3N1 N1 a31VOO1d�995`6 uolslAlpgnS OUpu41HOS 1eld Mw i -- d1 .; ...d.....b P... . ..... i 6.1..... �i L r �C lC F � I �AbM3dIN Yd11tlN3� _ field ....... OH al'uNnoo vao'Nmamw r 3E105'ffi3ML30NnX'NINON E dINSXMOi'EZ NOUNS 300IL 3N 3N1 Ni a31na01 9 8 9 b E `Z saseyd uolsulpgnS 09pu41noS uolslnlpgns a8puylnoS _... 4uld A3ewu11eld ._. Z 3P t d Yx k . I i .._.. °nn-- .nn,•n 9ne93'.ann90V9i'nV1099w ;;:'e ' -uePd adeospuel yeId Aiemwyaid T 33109'J93M 490XW 5LL of nlM idl9901'99n99n1 fi 6/13M XI031tl001 9 8 5 `b `E `Z saseyd uars!nypgns aspug1nayynos ' umsyupgns aBp[yyynos M� ji�Iay NEW gdo3spuel .i MC z SE a Y' aJ S J ¢ F g fi� a4 i 0£ L v Gp aq E FZ 2$ 4 F °{ 3 S S °{ 4 43 e 3 5? � y p�p 5• {g� F $ s s � sxs alY.dL. NJ € e • . n e91 3 a y, an E € I iia°s is a@ i' yi€3 9g eP s e §= £a 4 33 n{ 9: MW A€ €� a€ iF a ;i3 °➢ yF€ €. 3 4H€ c Pt :NN m a �S€Y . sys y€s4 s i va U $ x € Ag$ 2pIN s � € ;Hp aP yi' a Y s€Ss s ➢es $ 9 a i € P - e s ad°sx € ss i ff Ps@k€3i=�ytlSsP$ ie jig" ysi s'as igij, i`€4 's ��5'g�gsi€ ➢s��3�ea� �� s 3s€4i Yr i, i:.11 €iU.fia��s4��3? p p y 15 a s a 2n s sgsg[pppEp€n 4 € zsz p€ °q & [ d g 90 I Y§ Y am"A' � 7 NO v €SIN s BniSt f„ egpx YJ tl, n3yA3$Y �3g IN - •¢�n� � n �°a`e s"�a€��°� �€c e a nye, � -3„ ,s���g99§g ��€� s - -' �Q @a la V iii �3 i a9 I I ° 's..S3 a: ccSxxxyxx a 3 Szrt es F ECns� a� - 5 x � a$t s e a � yS 5� s C � ueid adeaspue7 ye�d luemwpa3d W,. DHNI'UNADO NaN'NWOlU3n HNM 38100'R3M 139NM WON f dINSU'SZ NORMS d0 VA 3M M N103LVOM 9 8 9 `b `E `Z sesegd ucisuipgnS a6ppgynoS uoiSinipgnS aBPpgynoS ...... .d....�....d. r aHvtll$XNW vatl'Xmalaw Meld adeaspuel leld Neu�wi�aid ••r.r g j' 3EI09'153M 4 39Xvtl'H1tlaX E dINEXMaL'EZ XOLLp3$ i00/43X 3Hl Ni a3ltlaal 9 t 9 sl S It S aZ sasegd uMlslnlpgng aBpuylnog M -- . uo!s!n!DQnS aBPu3pnoS ueld adeaspuel� Z 3EYXd \� a - xwFx3]tl.lxld xxv xlIvxx 'r7r♦ • �--w- __ I a ZE3EVNd 3Na T x \ Hi ..v... Ali _Ill , Fr - � _L - i3 r r 'av uulEulm i s '1 ��.♦6 4_ x 3. Y I �:� ��. a� - '- � 'r tl �r _ ill'' ���• � --� ---- ---------- ---------- ---------- _-- • _ EiZ �- _-��;-r� -- � 'I,� iii !i' _____ i r - r r' `, -- M , __ \ ' / R ,v/ 6 ♦ d Jmu ♦♦♦ • w • cirt ♦s ♦ v O q ¢g .„�.._.,._.�__ .��"�_.—._� .ren UU aduas U u )Utu WI al �d p �d .� d 9'8 5 It ry saseyd uoispgpgng aBpuganog ..m,•x omi'A noa vov'xamwaw 9910HUM l3DMtltl'Nuols!Alp nS oD ljglno300M1 3X3NI M1031MJ01 uors�n�pgng aBpuyanog uuld aduaspuu7 GGGGgggg90 a �SI' � ;x( `four ; yi `'`,,, z, M;fds a "• I� ill ------ a ssv x a -..., ..... �.......... r....13 "a r 13 "a \ � ji e I /l r �- \ Al NNtlYNx� AR, I \ Jr d x T i swv^°wvticw n OHY01'amD3 VoV'VVlQlH3n uefd adeaspuel lead Aleelaulald �m 3sIo9.153M 139NVU'a1V09 6dIa9VMo1'oZ a011339 fa W M 3a1 Ni a31V801 9 9 9 `b `E `Z case 4d UOISIAI ...pgng a8pifglnoguoisuiPgnS a8P1941nog ... ue�d adeaspuel J�Mwlil �? °„•,.,.�;��� Si s::'' THE LAND GROUP, INC. Southridge Subdivision Phase 2 Meridian, Idaho ACHD Storm Water Management Master Plan & Engineering Drainage Report Developer Corey Barton Homes, Inc. Engineer The Land Group, Inc. 462 East Shore Drive, Ste. 100 Eagle, Idaho 83616 Contact: Jason Densmer, PE Ph: 208.939.4041 December 14, 2015 Project No. 115162 \IN DEN%"% 12/14/2015 P Site Planning • Landscape Architecture • Civil Engineering • Golf Course Irrigation & Engineering • Graphic Design • Surveying 462 E. Shore Drive, Suite 100 - Eagle, Idaho 83616 - P 208.939.4041 • F 208.939.4445 • www.thelandgroupinc.com ..i_: 2102200 THE LAND GROUP, INC. Report Purpose Southridge Subdivision Phase 2 Storm Water Management Report The following report addresses the storm drainage systems for Phase 2 of the Southridge Subdivision. Phase 1 of the subdivision contemplated the future improvements proposed in Phase 2 and provided storm drainage capacity within the system constructed by Phase 1 to accommodate these areas. Site Description Phase 2 of the Southridge Subdivision is located south of Overland Rd and west of Linder Rd in Meridian, Idaho. The site is adjacent to and southerly of the Southridge Subdivision Phase 1. The topography of the site is gently sloping, generally rising towards the south and the border of the site against the Ridenbaugh Canal. Phase 2 of the project will develop an area of approximately 15.00 -acres. Storm Drainage Routing & Treatment: Generally, collection, routing and treatment of storm drainage from the project are as follows: 1. Roadways slope to gutters along the road edges 2. Gutters transport collected drainage to catch basins. 3. Stormwater flows through the catch basins into a storm drain piping network which transports the stormwater to existing piping within the Phase 1 improved area. 4. Within the Phase 1 of the subdivision, the piping network conveys storm water to treatment structures which ultimately discharge the treated stormwater to detention ponds. 5. The detention ponds provide temporary storm water holding volumes to allow sufficient time for the incoming flows to be attenuated and discharged at a pre -development rate. Master Drainage Plan Phase 1 of the Southridge Subdivision prepared a detailed drainage study of the Phase 1 area and the upland areas which are now proposed for Phase 2. (Note —the Phase 2 area described by the Phase 1 study will actually be developed in several phases. The current Phase 2 is only a portion of the Phase 2 contemplated by the Phase 1 study). The Southridge Subdivision Phase 1—Storm Water System Design Report (dated Aug. 18, 2008) is attached to this report as Attachment A and incorporated by reference. or Site Planning • Landscape Architecture • Civil Engineering � Golf Course Irrigation & Engineering - Graphic Design , Surveying 462 E. Shore Drive, Suite 100 • Eagle, Idaho 83616 • P 208.939.4041 • F 208.939.4445 • www.thelandgroupinc.com � • HE LAND GROUP, INC. Conformance to Master Drainage Plan Southridge Subdivision Phase 2 Storm Water Management Report In the time since the Phase 1 study was prepared, the design of lots and roadways within the Phase 2 area has been revised. These changes have had minor impacts to the anticipated stormwater flows from this area contemplated by the Master Drainage Plan. An exhibit showing the drainage basins of the proposed Phase 2 area and the resulting stormwater flows, calculated using the current ACHD methodology are included as Attachments B and C. Conclusion The development of Phase 2 will not contribute more storm waterto the existing Phase 1 system than was anticipated by the Master Drainage Plan. The Phase 2 improvements will be adequately served by the existing system's capacity. or Site Planning • Landscape Architecture • Civil Engineering • Golf Course Irrigation & Engineering • Graphic Design • Surveying 462 E. Shore Drive, Suite 100 • Eagle, Idaho 83616 - P 208.939.4041 • F 208.939.4445 • www.thelandgroupinc.com Southridge Subdivision Phase 2 Storm Water Management Report TME LAND GROUP, INC. Attachment A Master Drainage Plan Site Planning • Landscape Architecture • Civil Engineering Golf Course Irrigation & Engineering • Graphic Design • Surveying 462 E. Shore Drive, Suite 100 • Eagle, Idaho 83616 • P 208.939.4041 - F 208.939.4445 - www.thelandgroupinc.com I n I i 4.AII II')111. 1 1 ( SOUTHRIDGE SUBDIVISION PHASE 1 STORM WATER SYSTEM — DESIGN REPORT DFv F?LOPI R JLC Enterprises, Inc. 1560 Carol Street Meridian, Idaho 83642 ENGINF.FR The Land Group, Inc. 462 East Shore Drive Eagle, Idaho 83616 Ph: (208) 939-4041 U 4\ press a ow I ill- I.NNH (Moi 11, 1,,(.. Project No. 08099 August 6, 2008 STORM WATER SYSTEM DESCRIPTION: Southridge Subdivision Phase 1 is a residential and commercial development occupying approximately 33.60 acres. Phase 1 residential construction documents have been prepared and show design details for the roadways and lots depicted on sheet 1 of the final Plat. Phase 1 commercial lot construction documents will be prepared as stand-alone documents and are not included in this storm water drainage report; however, all storm water generated within the commercial lots will be retain within the commercial lots. Storm Drainage Routing & Treatment: Generally, collection, routing and treatment of the storm drainage arc as follows 1. Roadways slope to gutters along the road edges. 2. The gutters transport collected drainage to catch basins. 3. The storm water flows through the catch basins into a storm drain piping conv=eyance system which transports the storm water to treatment structures. 4. Discharge from the treatment structures is delivered to detention facilities (ponds) which will hold the peak storm water event and discharge at a pre -development rate. The storm drain piping conveyance and treatment system within the Southridge Subdivision Phase 1 has been sized to convey and treat the storm water runoff for all of Southridge Subdivision Phase 1 and all of the future Southridge Subdivision Phase 2. Tributary areas for each drainage basin are shown on the exhibits provided in the Appendix. The runoff from each tributary area is routed via curb and gutter to catch basins which are located at a maximum spacing of 750 feet. Storm water is collected in the street side catch basins and is discharged to underground pipe which collects and conveys the runoff to Contech treatment structures with an offline bypass weir (Vortechs 5000 and 11000 hydrodynamic separator). These treatment structures have been sized to treat flows equal to 1/.3 of the 2 -Year event (approximately 3.2 cfs & 5.5 cfs respectively) and provide an 80% removal efficiency for particle sizes 110 /.tm and larger. After treatment, coater is discharge into detention/amenity ponds which have been sized to provide adequate storage volume for the 100 -year storm event. The total pre -development flow for Overland Road, Phase IA and Phase 2 is discharged to an existing ditch on the north side of Overland road. The discharge from the detention/amenity ponds for Phase 1 A and Phase 2 was designed and sized to only allow for uir 1_A111) (.IuJI r, rn.(.. 30% of the total combined pre -development discharge (approximately 7.5 cfs) to provide a larger discharge rate for the Overland Road Runoff. See Summary of Drainage Calculations for breakdown of flows. Peak Rate of Discharge The peak rate of discharge was calculated per Section 8005 of the ACHD Development Policy Manual. The peak flows and resulting runoff volumes represent the maximums from a 100 -year storm event at the time of concentration. Pipe flows have been checked using a computer program based on the Manning's formula. Tributary areas for each drainage basin are shown on the exhibits provided in the Appendix. As shown on the exhibits, the facilities have been sized to accommodate future phases of the Southridgc Development. Primary Conveyance System The primary conveyance system (street gutters, catch basins, and pipes) have been sized to accommodate the maximum flow from the 25 -Year Storrs Event. See construction drawings for details and sizes. J Post -Development Discharge Summary J I pq Orr bA� A III 11AU bltul 11, 111 Southridge Phase 1A (PN 08099) July 24, 2005 Storm Drainage Calculations Drainage Area # 1 (See exhibit for location) Area= 200,211 sf Area = 4.60 acres C = 0.50 Tc = 10 min. (ACHD minimum): i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 7.35 cfs Q (25 -yr) = 5.29 cfs Drainage Area # 2 (See exhibit for location) Area = 177,735 sf Area = 4.08 acres C = 0.50 Tc = 10 min. (ACHD minimum): i (100 -yr) = 320 in/hr 1 (25 -yr) = 2.30 in/hr Q (100 -yr) = 6.53 cfs Q (25 -yr) = 4.69 cfs Drainage Area # 3 (See exhibit for location) Area= 216,403 sf Area = 4.97 acres C = 0.60 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 9.54 cfs Q (25 -yr) = 6.86 cfs Drainage Area # 4 (See exhibit for location) Area= 127,370 sf Area = 2.92 acres C = 0.50 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 4.68 cfs Q (25 -yr) = 3.36 cfs Drainage Area # 5 (See exhibit for location) Area = 152,982 sf Area = 3.51 acres C = 0.50 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 5.62 cfs Q (25 -yr) = 4.04 cfs a Site Plmeiieg Gniphh Comwilmiarlion -Stawgin8 •162 C. SGoro Ot ne. Sle. 100, Eg1e, ldnbn 83616 -P209-939.4041F208.939.440 vinum.lLekmdgmiepinumn Drainage Area # 6 (See exhibit for location) Area = 165,737 sf Area = 3.80 acres C = 0.50 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 6.09 cfs Q (25 -yr) = 4.38 cfs Drainage Area # 7 (See exhibit for location) Area = 303,228 sf Area = 6.96 acres C = 0.50 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 11.14 cfs Q (25 -yr) = 8.01 cfs Drainage Area # 8 (See exhibit for location) Area = 227,304 sf Area = 5.22 acres C = 0.70 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 11.69 cfs Q (25 -yr) = 8.40 cfs Drainage Area # 9 (See exhibit for location) Area = 107,440 sf Area = 2.47 acres C = 0.75 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 5.92 cfs Q (25 -yr) = 4.25 cfs Drainage Area # 10 (See exhibit for location) Area= 52,319 sf Area = 1.20 acres C = 0.85 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 3.27 cfs Q (25 -yr) = 2.35 cfs Drainage Area # 11 (See exhibit for location) Area= 68,463 sf Area = 1.57 acres C = 0.60 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 3.02 cfs Q (25 -yr) = 2.17 cfs Area # 12 (Se Area = Area = C= TC = 1(100 -yr) _ Q (100 -yr) _ exhibit for 28,625 sf 0.66 acres 0.90 acres 10 min. 3.20 in/hr i (25 -yr) = 2.30 in/hr 1.89 cfs Q (25 -yr) = 1.36 cfs Drainage Area # 13 (See exhibit for location) Area= 146,011 sf Area = 3.35 acres C= 0.75 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 8.04 cfs Q (25 -yr) = 5.78 cfs Drainage Area # 14 (See exhibit for location) Area = 46,904 sf Area = 1.08 acres C = 0.75 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 2.58 cfs Q (25 -yr) = 1.86 cfs Drainage Area # 15 (See exhibit for location) Area = 53,782 sf Area = 1.23 acres C = 0.75 Tc = 10 min. 1(100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 2.96 cfs Q (25 -yr) = 2.13 cfs Drainage Area # 16 (See exhibit for location) Area = 94,588 sf Area = 2.17 acres C = 0.75 Tc= 10 min. i (100 -yr) = 3.20 In/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 5.21 cfs Q (25 -yr) = 3.75 cfs Drainage Area # 17 (See exhibit for location) Area = 19,759 sf Area = 0.45 acres C = 0.95 Tc = 10 min. 1 (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 1.38 cfs Q (25 -yr) = 0.99 cfs Drainage Area # 76 (See exhibit for location) Area= 66,808 sf Area = 1.53 acres 80.95 Area of Direct Runoff (Pond 1 &2) (sf) = 24,634 C = 0.95 Actual Volume Provided (cf) = 95,743 Tc = 10 min. i (100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 4.66 cfs Q (25 -yr) = 3.35 cfs Drainage Area # 20 (See exhibit for location) Area= 29,200 sf Area = 0.67 acres C = 0.95 To = 10 min. 1(100 -yr) = 3.20 in/hr i (25 -yr) = 2.30 in/hr Q (100 -yr) = 2.04 cfs Q (25 -yr) = 1.46 cfs (Total for Overland Rd., Phase 1 A and Phase 2) - East Tc (min.) 32.55 1 15 Southridge Phase 1A and Phase 2 Pond Sizing Allowed Predevelopment Discharge (cfs) = 7.58 (Phase 1A & Phase 2) Total Q (cfs) = 80.95 Area of Direct Runoff (Pond 1 &2) (sf) = 24,634 Direct Runoff Volume c = 2,258 Actual Volume Provided (cf) = 95,743 ®e 00 riii 1'U INm P. In Southridge Phase 1A (PN 08099) July 17, 2008 Storm Drainage Calculations Drainage Area # 19 (See exhibit for location) Area = 16,660 sf cf Area = 0.38 acres Seepage Bed Recovery C = 0.95 1,071 cf Tc = 10.00 min. r',i i = 3.20 in/hr Q = 1.16 cfs [1000 Gal.] V= 1,071 cf �Includes additional 15% for sediment storage Infiltration System Characteristics (Seepage Bed): k = 8.0 in/hr 7.88 Width = 8.0 ft Depth = 10.0 ft Minus 1 -foot Freeboard Voids = 40% Void Volume of Media A perc. = 553 sf 2/3 Depth x Perimeter Q perc. = 369 cf/hr V sb = 2,678 cf .—Seepage Bed Volume Required (40% Voids) I annfh = 33 d7 ft .—Rncnano Rcd I P.Mh Ronnirod Infiltration Volume Check: V(90%) = 964 cf Vperc = 8,847 cf Seepage Bed Recovery Time: Vs Max= 1,071 cf Q perc = 369 cf per hr r',i 4.00 .-90°/ of maximum runoff developed in 24 -hours ,Total Percolation Volume in 24 -hours ,Maximum Runoff Developed Sand and Grease Traps Characteristics: Baffle 12 18 24 Spacing (in.) Area (s.f) 4.00 6.00 8.00 [1000 Gal.] Area (s.f) 5.25 7.88 10.50 [1500 Gal.] Velocity Through Baffle: Type: 1-1000 Gal. Sand and Grease Trap by Boise Vault and Pre Cast A b = 4.00 sf .-12" between baffles Q max. = 1.16 cfs .—Max Q at 25 -Year Storm 77 it . ,i-, ;I �11 Sac Planning - I wdwpe Anhilealliv Civil Er{;neefinq Call Colne lrnxgn/ioei e- Eugiaeea)ug - Graphic COowivaierrlion Sllnerieg -162 h. Shore Ddve, S/,,. 100, Engle, Idaho 83616 P 108.939.4041 F 208.939.4445 wwnxlhalnndgmnpina<niu Exhibits ww IIIb 1 4\U K:R(H 1', 1\1 U Weir Report OFFL-jN6 aypASS *DIZAI,,A4c,E) Hydraflow Express Extension for AutoCAD® Civil 3D® 2008 by Autodesk, Inc. Monday, Jul 28 2008 <Name> Rectangular Weir Highlighted Crest = Sharp Depth (ft) = 1.73 Bottom Length (ft) = 6.00 Q (cfs) = 45.61 Total Depth (ft) = 3.00 Area (sqft) = 10.41 Velocity (ft/s) = 4.38 Calculations Top Width (ft) = 6.00 Weir Coeff. Cw = 3.33 Compute by: Known Q Known Q (cfs) = 45.61 X51.13 c.4 - S.5z cS-s Depth (ft) 4.00 406111 1.00 N owe -1.00 <Narl Depth (ft) 4.00 3.00 i RI 1.00 M -1.00 Weir W.S. Length (ft) Weir Report OFF7_fN% a/PAss �c,a Cwcs� PfzArn�tic,E Hydraflow Express Extension for AutoCAD® Civil 3D® 2008 by Autodesk, Inc. Monday, Jul 28 2008 <Name> Rectangular Weir Highlighted Crest = Sharp Depth (ft) = 1.21 Bottom Length (ft) = 6.00 Q (cfs) = 26.60 Total Depth (ft) = 3.00 Area (sqft) = 7.26 Velocity (ft/s) = 3.66 Calculations Top Width (ft) = 6.00 Weir Coeff. Cw = 3.33 Compute by: Known Q Known Q (cfs) = 26.60 021.8 Z - 3.22 Depth (ft) 4.00 WIN 2.00 1.00 -1.00 <Name> Depth (ft) 4.00 3.00 2.00 1.00 MIX -1.00 0 1 2 3 4 5 6 7 8 Weir W.S. Length (ft) Culvert Report FONQ D15C-AA2C1E Hydraflow Express Extension for AutoCAD® Civil 3D® 2008 by Autodesk, Inc. Tuesday, Aug 5 2008 Cir Culvert Invert Elev Din (ft) = 2589.64 Calculations Pipe Length (ft) = 365.00 Qmin (cfs) = 7.58 Slope (%) = 0.65 Qmax (cfs) = 7.58 Invert Elev Up (ft) = 2592.00 Tailwater Elev (ft) = 0.00 Rise (in) = 15.0 Shape = Cir Highlighted Span (in) = 15.0 Qtotal (cfs) = 7.58 - No. Barrels = 1 Qpipe (cfs) = 7.58 n -Value = 0.012 Qovertop (cfs) = 0.00 Inlet Edge = Projecting Veloc Din (ft/s) = 6.65 Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5 Veloc Up (ft/s) = 6.18 HGL Dn (ft) = 2590.74 Embankment i00-ycAR �'�N HGL Up (ft) = 2594.91 Top Elevation (ft) = 2600.00 --PHw Elev (ft) `-Maw W NTE2 L6✓EL = 2595.20 Top Width (ft) = 300.00 Hw/D (ft) = 2.56 Crest Width (ft) = 100.00 Flow Regime = Outlet Control Eley it) 2601.00 2599.00 2597.00 2595.00 2593.00 2591.00 2589.00 2587.00 <Nemea Hw Depth (0) 9.00 7.00 5.00 3.00 1.00 .1.00 3.00 -5.00 -Cif Culved - HGL - Embank Reach (it) VORTECHS SYSTEM° ESTIMATED FLOW CALCULATIONS South Ridge Subdivision Meridian, ID'�' r � r STORMWATER Model11000`tl"rants 5- System VX2 Vortechs Orifice Vortechs Weir Bypass Weir Cd = 0.56 Cd = 3.37Cd = 3.3 A (ft') = 0.77 Weir Crest Length (ft) = 1.75 Weir Crest Length (ft) = 6 Crest Elevation ft = 2594.00 Crest Elevation ft = 2596.00 Crest Elevation ft = 2596.26 Head Elevation Orifice Flow Weir Flow Bypass Flow Total Flow (ft) (ft) (cfs) Ids) (cfs) (cfs) 0.00 2594.00 0.00 0.00 0.00 0.00 0.25 2594.25 0.42 0.00 0.00 0.42 0.50 2594.50 1.19 0.00 0.00 1.19 0.75 2594.75 2.24 0.00 0.00 2.24 1.00 2595.00 2.83 0.00 0.00 2.83 1.25 2595.25 3.31 0.00 0.00 3.31 1.50 2595.50 3.74 0.00 0.00 3.74 1.75 2595.75 4.12 0.00 0.00 4.12 2.00 2596.00 4.46 0.00 0.00 4.46 2.25 2596.25 4.79 0.75 0.00 5.54 2.26 2596.26 4.80 0.78 0.00 5.58 2.50 2596.50 5.09 2.10 2.37 9.56 2.75 2596.75 1 5.37 1 3.85 6.85 16.08 3.00 2597.00 5.64 5.92 12.68 24.25 3.25 2597.25 5.90 8.27 19.59 33.77 3.50 2597.50 6.15 10.87 27.44 44.46 3.63 2597.63 1 6.28 12.32 1 31.90 50.50 Calculated by: ALS 7/22/2008 JlChecked by: Vortechs System Stage Discharge Curve 2598.0 _- - 2597.5 2597.0 x 2596.5 .................... ...................... Bpass Crest = 2596.0_________:_------------------------ _.____.________. _. Weir Crest w 2595.5---'------- 2595.5 r- w 2595.0 2594.5 2594.0 ------------------------------------------- Orifice Crest 2593.5 0,010.0 20.0 30.0 40.0 50.0 60.0 Discharge (cis) VORTECHS SYSTEM® ESTIMATED FLOW CALCULATIONS South Ridge Subdivision A> �� Meridian ID 00 STORMWATER Model 5000 S- System VX1 Vortechs Orifice Vortechs Weir Bypass Weir Cd = 0.56 Cd = 3.37 Cd = 3.3 A (ft) = 0.32 Weir Crest Length (ft) = 0.75 Weir Crest Length (ft) = 6 Crest Elevation (ft) = 2594.58 Crest Elevation (ft) = 2596.58 Crest Elevation (ft) = 2597.3 Head Elevation Orifice Flow Weir Flow Bypass Flow Total Flow (ft) (ft) (cfs) (cfs) (cfs) (cfs) 0.00 2594.58 0.00 0.00 0.00 0.00 0.25 2594.83 0.28 0.00 0.00 0.28 0.50 2595.08 0.78 0.00 0.00 0.78 0.75 2595.33 1.06 0.00 0.00 1.06 1.00 2595.58 1.28 0.00 0.00 1.28 1.25 2595.83 1.47 0.00 0.00 1.47 1.50 2596.08 1.64 0.00 0.00 1.64 1.75 2596.33 1.79 0.00 0.00 1.79 2.00 2596.58 1.93 1 0.00 0.00 1.93 2.25 2596.83 2.06 0.32 0.00 2.38 2.50 2597.08 2.18 0.90 0.00 3.09 2.72 2597.30 1 2.29 1.54 0.00 3.83 2.75 2597.33 2.30 1.65 0.12 4.07 3.00 58 2.41 2.54 2.98 7.93 3.25 83 f2598.34 2.52 3.55 7.70 13.77 3.50 08 2.62 4.66 13.72 20.99 3.75 2.72 5.88 20.90 29.50 Calculated by: ALS 7/22/2008 Checked by: Vortechs System Stage Discharge Curve 2599.0 _. 2598.5 2598.0 2597.5 ......----- ................... ._....s___._._.......-- Bypass Crest 2597.0 c 2596.5 ... ...............,......... ,...__....:....... _- _...... Weir Crest m 'm 2596.0 w 2595.5 2595.0 2594.5................................._...------....._,_....- Orifice Crest 2594.0 --... ._._ 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 Discharge (cfs) NOTE: INLET PIPE MUST BE PERPENDICULAR TO WALL RIS ENTERING ON 90 DEGREE INLET THAT IS TANGENT LS -SWIRL CHAMBER ILS TO SWIRL CHAMBER LEFT SIDE L� Ly C INLET y OUTLET VORTECHS SYSTEM R� Ry RIGHT SIDE tRS RS TYPICAL INLET/OUTLET ORIENTATION OPTIONS LS SWIRL CHAMBER 30° MAX. 90 DEGREE INLET THAT IS TANGENT LEFT SIDE TO SWIRL CHAMBER 4 3W MAX. INLET / V TqS11E OUTLET RE NOTE:=INLEBEPOSITSAME FLOW n RIGHTNOTE: ANGLED OUTLET REQUIRES ELLIPTICAL Lj KNOCKOUT. rRH NIKE DUAL INLET ANGLED OUTLET D ORIENTATION OP11ONS ORIENTATION OPTIONS ENDSIR This CARD file is for the purpose of specifying starmwater treatment equipment to be furnished by CONTECH Stonnwaler Solutions and may only be transferred to other dccumems exactly as provided by CONTECH Slormwater Solutions. Title block Information. excluding the CONTECH. Slonnwaler Solutions logo and the Vortechs Stormwaler Treatment System designallon and patent number, maybe deleted if necessary. Revisions to any part of this CARD Ile without prior coordination with CONTECH Stormwater Solutions shall be considered unauthorized use of proprietary information. _A.4I'&Vgi1EA_L4® e% N a ��W ' TYPICAL VORTECHSO SYSTEM ORIENTATIONS STORMWATER SOLUTIONSK contechstomwater.com DATE: 4III06 1 SCALE: NONE FILE NAME: TVPVX ORIENTATION DRAWN:GMC CHECKED:NDG t y i I a.\ I ��������ii j®fig■■■ a 1 Phase 2 J Project Area Southridge Subdivision Phase 2 Storm Water Management Report THE LAND GROUP, INC. Attachment B Drainage Basin Map Site Planning - Landscape Architecture • Civil Engineering - Golf Course Irrigation & Engineering - Graphic Design - Surveying 462 E, Shore Drive, Suite 100 Eagle, Idaho 83616 P 208.939.4041- f 208.939.4445 www.thelandgroupinc.com o4Nl IwIIPN �12 e m samoH aoUeg A8103 deW ulsee auumeaa Lai y ase4d ualsU4p9n$ a6puygnaS aaeonnlvlP.a / I f - -- I as aS9uol Nls99a ---_� — O O J �± _ � 1p0°lT is lIOiI OZaHIPi — — . y 69999 n Nlllu! w w'nDOD —` l9419(YL 411pe, . 1 N6 - a59sKZao NllPaa At ow02ulaetl I 1 �.�, DOW,- aR909 Y99VIPH �J - 69uoanwonxa - pL�'_ rr C :: ii: THE LAND GROUP, INC. Attachment C Drainage Calculations Southridge Subdivision Phase 2 Storm Water Management Report Site Planning - Landscape Architecture • Civil Engineering • Golf Course Irrigation & Engineering • Graphic Design Surveying 462 E. Shore Drive, Suite 100 • Eagle, Idaho 83616 • P 208.939.4041 • F 208.939.4445 • www.thelandgroupinc.com ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardize ACHD checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineers methodology must result in facilities that meet or exceed these calculations in order to be accepted. _ - new. Calculate PostDevelopmentFlows (for pre -development flows, increase number of storage facilities to createe new tab) User input in yellow cells. 1 Project Name Southridge Phase 2 2 Is area drainage basin map provided? YES (map must be included with stormwatercalculations) 3 Enter Design Storm (100 -Year or 25 -year With 100 -year Flood Route) 100 4 Enter number of storage facilities (25 max) 7 Clid m Sbow. More Subbasim, 0 5 Area of Drainage Subbasin (SF or Acres) SF Acre. 6 Determine the Weighted Runoff Coefficient (C) C=[(C1xA1)+(C2xA2)+(CnxAn))/A Weighted Avl Subbasin Typeof Surfxe I Subbasin Subbasin Subbasin Downtown areas Subbasin Subbasin Subbasin Subbasin 1 Subbasin 2 3 4 5 Subbasin 6 7 8 9 10 67,082 17,598 DSO Heavyareas 090 Parks, cemeteries 010-02s Playgrounds 020-035 Railroad yard areas 1.94 Unimproved areas 0.10-0-30 Streets Asphalt 095 concrete 095 Brick 0.50 0.95 0.95 laeids: Said l SGIType Slope A a c D 0.59 0.04 0.07 0.11 0.15 Average2E% 009 0.12 015. 020 7 Calculate Overland Flow Time of Concentration in Minutes (Tel or use default 10 Usercakvlate min 10 Min. 9 Calculate the Post -Development peak discharge (QPeak) Qp.,,r 2.98 cfs SO Calculate total mmofFvol IV)(for sizing primary storage) V 3,987 ft, V=Ci (Tc=60)Ax3600 11 Calculate Vrr(for sizing WQ facilities) Enter Percentile Storm I(80th percent le=0.34In) 95th 0.60 in Enter Runoff Reduction Vol (95th Percentile=0.60-1n x Area) V„ 2,492 ft, 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) cis 13 Volume Summary Surface Storage: Pond WQ Pond Forebay V 2,492 fta Primary Treatment/Storage Basin V 1,495 k' Subsurface Storage Volume With 15% Sediment Factor V 4,586 ft' G:\2015\115162\CAD\Calcs and Reports\115162 ACHD_ 5D_CALGS_15-11-23.xlsm Version 8.2, October 2015 With New IDF Curves Estimated Runoff raeRxlents for Various Surfaces Typeof Surfxe RmwffCoefficiems'C' eusioess Downtown areas 0J0-0.95 Urban neighborhoodareas 050-0.70 Residential Single-family 035-050 Muni -family OAA -0.75 8 Mdentxc lraral) 025-0.40 Apartmemdwellingareaz 070 Industrial and Commercial LigMareas DSO Heavyareas 090 Parks, cemeteries 010-02s Playgrounds 020-035 Railroad yard areas 020-D.40 Unimproved areas 0.10-0-30 Streets Asphalt 095 concrete 095 Brick 0.85 Roofs 0.95 laeids: Said l SGIType Slope A a c D Flat 0-2% 0.04 0.07 0.11 0.15 Average2E% 009 0.12 015. 020 Steep '6% 013 0.18 023 028 Adapted from ASCE 12/14/2015, 11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardize ACHD checking of drainage calculations and shall not replace the Engineers calculation methodology. These calculations shall establish a minimum requirement. The Engineer's methodology must result in facilities that meet or exceed these calculations in order to be accepted. busing the Rational Method- calculated for post-devel Calculate Post -Development Flows (for pre -development flows, increase number of storage facilities to create new tab) User input in yellow cells. 1 Project Name Southridge Phase 2, Facility 2 2 Is area drainage basin map provided? YES (map must be included with 5tormwater calculations) 3 Enter Design Storm (100 -Yea r or 25 -Year With 100 -Yea r Flood Route) 100 5 Area of Drainage Subbasin (SF or Acres( SF Acre - 6 Determine the Weighted Runoff Coefficient (C) C=[(ClxAl(+(C2xA2(+(CnxAn)(/A Weighted AvE Cllckto Show More Subbasins u Subbasin 2.58 Subbasin Subbasin Subbasin cfs Subbasin Subbasin Subbasin Subbasin 1Subbasin 2 3 4 5 Subbasin 6 7 8 9 10 12,011 5,648 30,583 20,864 12 Detention: Approved Discharge Rate to Surface Waters (if applicable( Park, cemeteries cfs Playgrounds 0.20-035 Railroad yard areas 1.59 unimproved areas 0.10-030 Streets Asphalt OAS Concrete OAS Brick 0.95 0.95 0.50 0.50 Soil Type Slope A 8 c D 0.61 0.04 0.07 011 0.15 Ayerage2-6% 0-09 012 CIS 010 7 Calculate Overland Flow Time of Concentration In Minutes (Tc( or use default 10 user calculate min Fold 8 Tc 1 2.58 in/hr 9 Calculate the Post -Development peak discharge (QPeak) Qpe,k 2.52 cfs 010-095 Urban neighborhaodareas 050-020 10 Calculate total runoff val(V)(for siring primary storage) V 3,372 ft' V = Cl (Tc=60(Ax3600 Mulu-family 0.60-035 11 Calculate Vrr (for sizing W Q facilities) 0.25-0-40 Apartment dwelling areas Enter Percentile Storm I (80th percentile = 0.34 in( 95th 0.60 In Enter Runoff Reduction Vol (95th Percentile=0.60-in x Area) V„ 2,107 ft' 12 Detention: Approved Discharge Rate to Surface Waters (if applicable( Park, cemeteries cfs 13 Volume Summary Surface Storage: Pond WQ Pond Forebay V 2,107 ft' Primary Treatment/Storage Basin V 1,264 ft' Subsurface Storage Volume With 15% Sediment factor V 3,878 ft° G:\2015\115162\CAD\[airs and Reports\115162 ACH D_SID _CALCS_I5-11-23.xlsm Version 8.2, October 2015 With New IDF Curves Estimated Runoff Coefficients for Various surfaces Type ofsurfare Fareff Caeffirients "C Business Downtown areas 010-095 Urban neighborhaodareas 050-020 Residen0al Single-family 0.35-050 Mulu-family 0.60-035 Residem.1(rurai) 0.25-0-40 Apartment dwelling areas 020 Industrial and commercial Ughtareas 0.60 HcaW areas 0.90 Park, cemeteries 0.10-0.25 Playgrounds 0.20-035 Railroad yard areas 010-0.40 unimproved areas 0.10-030 Streets Asphalt OAS Concrete OAS Brick 085 Beefs OAS rlelds: sandysai Soil Type Slope A 8 c D Flat O-2% 0.04 0.07 011 0.15 Ayerage2-6% 0-09 012 CIS 010 steep>6% OSS 0.18 023 028 Adapted from ASCE 12/14/2015, 11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardize ACHD checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineers methodology must result in facilities that meet or exceed these calculations in order Up be accepted. tional Method calculated ftlY�_: , Calculate PosEDevelopmfacilities Flows (for pre -development flows, increase number of storage facil0ies to create new tab) �_�_ "',-._ _T 17 User input in yellow cells. 1 Project Name Southridge Phase 2, Facility 3 2 Is area drainage basin map provided? YES (map must be included with starmwater calculations) 3 Enter Design Storm (100 -Year or 25 -Year With 100 -Year Flood Route) 100 5 Area of Drainage Subbasin (SF or Acres) SF Acre! 6 Determine the Weighted Runoff Coefficient (C) C=[(C1xA1)+(C2xA2)+(CnxAn)j/A Weighted Avg Click to Show More Subbasins e Subbasin V Subbasin Subbasin Subbasin Downtown areas Subbasin Subbasin Subbasin Subbasin 1 Subbasin2 3 4 5 Subbasin 7 8 9 10 6,555 5,741 0.80 cfs 0.90 Park, cemeterles 0.10-0.25 Playgrounds 13 Volume Summary Railroad yard areas 0.28 Unimproved areas Surface Storage: Pond Streets Aspect WQ Pond Forebay V 451 k' 0.95 0.50 271 ft' Subsurface Storage Slope AB Volume With 1S% Sediment Factor V 0.74 ft'' 007 0.11 015 Average2-6% 009 012 015 0.20 7 Calculate Overland Flow Time of Concentration in Minutes (Tc) or use default 10 D5ercAculate min 10 Min, 9 Calculate the Post-Developmem peak discharge(CiPeak) Oowc 0.54 cfs 10 Calculate total runoff vol (V) (for sizing primary storage) V 722 ft' V = Ci (Tc=60)Ax3600 Downtown areas 0.10-0.95 Urban nefghborhootlareas 11 Calculate Vm (for sizing WQfacilities) Reddendal 3ingle-farMy Enter Percentile Storm i (80th percentile =0.34 in) Multifamily 95th 0,60 in Enter Runoff Reduction Vol (95th Percent]le=0.60-in x Area) V„ 451 ft, 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) Dghtareas 0.80 cfs 0.90 Park, cemeterles 0.10-0.25 Playgrounds 13 Volume Summary Railroad yard areas 020-OAO Unimproved areas Surface Storage: Pond Streets Aspect WQ Pond Forebay V 451 k' Primary Treatment/Storage Basin V 271 ft' Subsurface Storage Slope AB Volume With 1S% Sediment Factor V 830 ft'' G:\2015\115162\CAD\Calcs and Repons\115162 ACHD_SD_CALCS_15-11-23.xlsm Version 8.2, October 2015 With New IDF Curves Estimated Runoff Coefficients for Various Surfaces Type of Saari R.noff Coefficients 'c" Business Downtown areas 0.10-0.95 Urban nefghborhootlareas 0.50-0.70 Reddendal 3ingle-farMy 0.35-050 Multifamily 0.60-0.75 Resdenfial(rural) 0.25-0.90 Apartment dwelling areas m7O Industrial and Commercial Dghtareas 0.80 Heavyareas 0.90 Park, cemeterles 0.10-0.25 Playgrounds 0.20-0.35 Railroad yard areas 020-OAO Unimproved areas 010-030 Streets Aspect 095 concrete 0.95 Brick 035 Rooh 095 Raids: Santlysoil SOIIType Slope AB C D Fiat 0-2% 0,04 007 0.11 015 Average2-6% 009 012 015 0.20 Steep 6% 0.13 0.18 023 028 Adapted from ASCE 12/14/2015, 11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE; This worksheet is intended to be a guideline to standardize ACHD checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineer's methodology must result in facilities that meet or exceed these calculations in order to be accepted. - k Diseh lfonal Method calculated for post.developmeA� Calculate Post -Development Flows (for pre -development flows, increase number of storage facilities to create new tab) User input in yellow cells. I Project Name Southridge Phase 2, Facility 4 2 Is area drainage basin map provided? YES (map must be included with stormwater calculations) 3 Enter Design Storm (100 -Year or 25 -Year With 100 -Year Flood Route) 100 5 Area of Drainage Subbasin (SF or Acres) SF Acre. 6 Determine the Weighted Runoff Coefficient (C) C=[(C1xA1)+(C2xA2)+(CnxAn)]/A Weighted Av€ mirk to Show More Suhhasins e Subbasin 1.13 Subbasin Subbasin Subbasin Downtown are. Subbasin Subbasin Subhasin Subbasin 1 Subbasin2 3 4 5 Subbasin6 7 8 9 10 7,941 23,150 0.80 Meavy are. 0.90 Parks, cemeteres 0.10-0.25 Playgrounds 0.20-0.35 Railroad and are. 0.71 Unimproved areaz 0.10-03D streets Asphalt 0.95 concrete 0.95 Brick 0.95 0.50 095 Fields. Sandywii Sol Type Slope A B c D 0.61 0.04 0:07 011 015 Average 2E% 0.09 032 0.15 0.20 7 Calculate Overland Flow Time of Concentration in Minutes (Tc) or use default 10 U,ercalwlare min 10 Min 9 Calculate the Post -Development peak discharge (QPeak) 10 Calculate total runoff vai (V) (for sizing primary storage) V=C (Tc=60)Ax3600 11 Calculate Vrr(for sizing WQ facilities) Enter Percentile Storm I (8Dth percentile=0.341n) Enter Runoff Reduction Vol (95th Percentile=0.60-in x Area) 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) 13 Volume Summary Surface Storage: Pond W Q Pond Forebay Primary Treatment/Storage Basin Subsurface Storage Volume With 15% Sediment Factor G:\2015\115162\CAD\Cala and Reports\115162 ACHD _SD_CALCS_15-11-23.xism Version 8.2, October 2015 With New IDF Curves Qpea 1.13 cis Business Downtown are. V 1,517 ft' Residential 95th 0.60 in Vrr 948 ft, 0.25-0.40 Apartment dwelling areas chs V 948 ft' V 569 ft' V 1,744 ft' Estimated Runoff eceffwien[s tar Various Type of5urface Runoff Coeffrcients Hi Business Downtown are. 0.70-0.95 Urban neighborhood areaz 050-0.70 Residential 5ingle-famlly 035-050 Multi -family 0.60-0.75 Residential ucel) 0.25-0.40 Apartment dwelling areas 030 Industrial and commercial ❑ghtare. 0.80 Meavy are. 0.90 Parks, cemeteres 0.10-0.25 Playgrounds 0.20-0.35 Railroad and are. 0.20-0.40 Unimproved areaz 0.10-03D streets Asphalt 0.95 concrete 0.95 Brick 095 Roof, 095 Fields. Sandywii Sol Type Slope A B c D Flato-2% 0.04 0:07 011 015 Average 2E% 0.09 032 0.15 0.20 Sfeep>6% 011 018 023 0.28 Adapted from As[E 12/14/2015,11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardize ACED checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineers methodology must result in facilities that meet or exceed these calculations in order to be accepted. ite using the Rational Method calculated for post-devel iAyelop me of Flows (for pre -development flaws, increase number of storage facilities to create new tab) User input in yellow cells. 1 Project Name Southridge Phase 2, Facility 5 2 Is area drainage basin map provided? VES (map must be included with stormwater calculations) 3 Enter Design Storm (100 -Year or 25 -Year With 100 -Year Flood Route) 100 5 Area of Drainage Subbasin (SF or Acres) SF Acres 6 Determine the Weighted Runoff Coefficient (C) C=((C1xA1)+(C2XA2)+(CnxAn)]/A Weighted Avg Cllckto Show More Subbasins e Subbasin Type of surfam Subbasin Subbasin Subbasin Dae mown areas Subbasin Subbasin Subbasin Subbasin 1 Subbasin2 3 4 5 Subbasin6 7 8 9 10 6,062 18,596 0.60 Heavy areas 0.90 Parks, cemeteries 0.10-0.25 Playgrounds 0.20-0.35 Railroad yard areas 0.57 Unimproved Be. 0.10-0.30 Streets Asphalt 0.95 Concrete 0.95 Brek 0.95 0.50 0.95 fields: sandywil Soil To. Slope A6 C D 0.61 nos 0.07 011 0.15 Average2-6116 009 012 015 0.20 7 Calculate Overland Flow Time of Concentration in Minutes (Tc) or use default 10 user cakulme min 110 Min 9 Calculate the Post -Development peak discharge (QPeak) 10 Calculate total runoff vol (V) (for sizing primary storage) V = Ci (Tc=60)Ax350O 11 Calculate Vrr (for siring WQfacilities) Enter Percera le Storm I (80th percentile = 0.341n) Enter Runoff Reduction Vol (95th Percentile=0.60-in x Area) 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) Surface Storage: Pond WQ Pond Forebay Primary Treatment/Storage Basin Subsurface Storage Volume With 15% Sediment Factor G:\2015\115162\CAD\Calcs and Reports\115162 ACHD_SD_CALCS_35-11-23.xlsm Version 8.2, October 2015 With New IDE Curves Clew, 0.89 cis V 1,195 95th 0.60 in V„ 747 ft, cfs V 747 ft' V 448 ft, V 1,374 ft' ESUmated Runoff Cceificlents for Various, Surlares Type of surfam nurser ecef idents'C" Business Dae mown areas 0.70 -095 Urban neighborhood areas 050-0,70 Residential Single-family 035-050 Muirfamily 0.60-0.75 Residential aural) 0.25-0.40 Apartment dwelling areas 0.70 IndurbW and Commend.1 Light areas 0.60 Heavy areas 0.90 Parks, cemeteries 0.10-0.25 Playgrounds 0.20-0.35 Railroad yard areas 010-a." Unimproved Be. 0.10-0.30 Streets Asphalt 0.95 Concrete 0.95 Brek 095 Beefs 0.95 fields: sandywil Soil To. Slope A6 C D Flat 0-2% nos 0.07 011 0.15 Average2-6116 009 012 015 0.20 Steep>6% 013 0.18 424 0113 Adapted from ASCE 12/14/2015, 11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardite ACHD checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineers methodology must result in facilities that meet or exceed these calculations In order to be accepted. ,. Steps fol Peak Discharge the Rational Method calculated for post-deve7opmgn@' _ _ _ - Calculate Post -Development Flows (for pre -development flows, increase number of storage facilities to create new tab) User input in yellow cells. 1 Project Name Southridge Phase 2, Facility 6 2 Is area drainage basin map provided? YES (map most be included with stormwater calculations) 3 Enter Design Storm (100 -Year or 25 -Year With 100 -Year Flood Route) 100 5 Area of Drainage Subbasin (SForAcres) SF Acre 6 Determine the Weighted Runoff Coefficient (C) C=((C1xAl)+(C2xA2)+(CnxAn)j/A Weighted Av€ Click to Show More Subbasins e Subbasin 2.58 Subbasin Subbasin Subbasin cis Subbasin Subbasin Subbasin Subbasin 1 Subbalm2 3 4 5 Subbasin6 7 8 9 10 10,316 49,387 1,710 ft, 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) Parks, cemeteries cfs Playgrounds 010-035 Railroad yard are. 1.37 Unimproved areas BAD _030 Streets Asphalt 095 Concrete 0.95 &ick 0.95 0.50 095 Fields. sena oil soil Type slope AB C D 0.58 004 0.07 0.11 0.15 Average2-6% 0.09 0.12 0.15 020 7 Calculate Overland Flow Time of Concentration in Minutes (Tc) or use default 10 ucercalcdate min Ito me 8 Ta i 2.58 in/hr 9 Calculate the Post -Development peak discharge(QPeak) Ct-, 2X4 cis 020-0.95 urban nelghborhaodareas 050-0.70 10 Calculate total runoff vol (V) (for sizing primary storage) V 2,737 ft V = Ci (Tc=60)Ax3600 Mult-family 0-60-0.75 11 Calculate Vrr (for sizing WQ facilities) 025-0Ao Apartment dwelling areas Enter Percentile Storm I(80th percentile = 0.34 in) 95th 0.60 in Enter Runoff R eduction Vol (95th Perce utile=0.60-in xArea) V„ 1,710 ft, 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) Parks, cemeteries cfs Volume Summary Surface Storage: Pond WQ Pond Forebay V 1,710 it, Primary Treatment/Storage Basin V 1,026 It, Subsurface Storage Volume With 15% Sediment Factor V 3,147 ft' G:\2015\115162\CAD\Calcs and Reports\115162 ACHD_SD_CALCS_15-I1-23.xlsm Version 8.2, October 2015 With New IDF Curves Estimated Run.R coefficients for Various Surtaxes Type of surface Rurmif Coefficients "C' Business Downtown areas 020-0.95 urban nelghborhaodareas 050-0.70 Residential Singletfamily 035-050 Mult-family 0-60-0.75 Residential (mral) 025-0Ao Apartment dwelling areas 0.70 Industrial and BommerNal tight areas 080 Heavy are. 090 Parks, cemeteries 0.10-0.25 Playgrounds 010-035 Railroad yard are. 020-0.49 Unimproved areas BAD _030 Streets Asphalt 095 Concrete 0.95 &ick 0A5 Roofs 095 Fields. sena oil soil Type slope AB C D Flat 0-2% 004 0.07 0.11 0.15 Average2-6% 0.09 0.12 0.15 020 Steep 6% 0-13 0.18 023 0.28 Adapted from ASCE 12/14/2015, 11:46 PM ACHD Calculation Sheet for Finding Peak Discharge/Volume - Rational Method NOTE: This worksheet is intended to be a guideline to standardize ACRD checking of drainage calculations and shall not replace the Engineer's calculation methodology. These calculations shall establish a minimum requirement. The Engineer's methodology must result in facilities that meet or exceed these calculations in order to be accepted. Steps far Peak Okeharga Rate using the, Rational Method calculated for post-developme0 Calculate PostDevelopmentFlows (for pre -development flows, increase number of storage facilities to create new tab) User input in yellow cells. 1 Project Name Southridge Phase 2, Facility 7 2 Is area drainage basin map provided? YES (map must be included with stornewater calculations) 3 Enter Design Sto no(100-Yea r a 25 -Year With 100 -Year Fl ood Ra ute) 100 5 Area of Drainage Subbasi n(SF or Acres) SF Acre 6 Determine the Weighted Runoff Coefficient (C) C=[(C1xA1)+(C2xA2)+(CnxAn)]/A Weighted Awl ❑Ick to Show More Suhhzzinc a Subbasin Type ofsarface Subbasin Subbasin Subbasin Downtown areas Subbasin Subbasin Subbasin Subbasal 1 Subbasin 2 3 4 5 Subbasin 6 7 8 9 10 4,806 20,010 030 Heavy areas 0.90 Parks, cemeteries 0.10-025 Playgrounds 020-035 Railroad yard areas 0.57 Unimproved aea. 010-030 Streets Asphalt 0.95 concrete 0.95 Brick 0.95 0.50 095 Feids: Sandysoil loll Type slope A 8 c D 0.59 0.04 0.07 011 0.15 Averege2-6% 0.09 0.12 0.15 0.20 7 Calculate Overland Flow Time of Concentration in Minutes (Tc) or use default 10 user Calmla,e min men. 8 Tc 9 Calculate the Past -Development peak discharge (QPeak) 10 Calculate total runoff vol (V) (for sizing primary storage) V=Ci (Tc=60)Ax3600 11 Calculate Vrr (for sizing W Q facilities) Enter Percentile Storm I (80th percentile = 0.34 in) Enter Runoff Reduction Vol (95th Percentile -0.60 -in x Area) 12 Detention: Approved Discharge Rate to Surface Waters (if applicable) 13 Volume Summary Surface Storage: Pond W Q Pond Forebay, Primary Treatment/Storage Basin Subsurface Storage Volume With 15% Sediment Factor GA2015\115162\CAD\Cala and Reports\115162 ACHD_5D_CALCS_35-11-23.xlsm Version 9.2, October 2015 With New IDF Curves Q,P1 0.86 cis V 1,156 95th 0.60 in V 723 ft' cfs V 723 W V 434 ft' V 1,329 it, Estimated Runoff Coetlkients for Various surfaces Type ofsarface Rurroff Caefliclents"C" Business Downtown areas 030-095 urban neighborhoodareas D50-030 Residential single-family 0.35-0.50 Mainfamily 0.60-035 Residential(rural) 015-0.40 Apartment dwelling areas 0.70 Industrial and commercial Light areas 030 Heavy areas 0.90 Parks, cemeteries 0.10-025 Playgrounds 020-035 Railroad yard areas 010-0:90 Unimproved aea. 010-030 Streets Asphalt 0.95 concrete 0.95 Brick OA5 Roofr 095 Feids: Sandysoil loll Type slope A 8 c D Flat 0-2% 0.04 0.07 011 0.15 Averege2-6% 0.09 0.12 0.15 0.20 steep sa% 013 0.18 0.23 0.28 Adapted frompSLe 12/14/2015,11:46 PM k ° s'4' _ k `.< Aff:n-11 THE LAND GROUP, INC. January 14, 2016 Mr. Warren Stewart, RE City of Meridian — Planning Division 33 E. Broadway Ave Meridian, ID 83642 Re: Southridge Subdivision Phase 2 The final plat application checklist requires a statement certifying that all street finish centerline elevations are set a minimum of 3 feet above the highest established normal ground water. According to the initial test pit investigations and recent construction activities, the ground water within this project was not encountered within depth of 3 feet of the existing ground. Based on the above information, I certify that groundwater would be greater than 36 inches below finished street centerline elevations throughout the project. Should you need further information, please let me know. Sincerely, Jason Densmer, P.E. IF Site Planning • Landscape Architecture • Civil Engineering • Golf Course Irrigation & Engineering • Graphic Design • Surveying Y. to .� 82 o M w a ^o�o� �� 070 E�g ." 3 I3 fsF� -� - € S€ �a3 m-3 Vi=e m C`c wFo w boe£o¢ -8g €RF 6= em«ems Bps N. 3 b� '�dg ri N N �E m �€ _ C O Z ` N 6 CZ co T � - M1 U C 0 Ns O O ;m i Ig 6> IL C o �Oco a y �ZO O a: Q —"ON ca -0 CM r- g _ ca 0 N =Z m 0)2 M o a W 0- (a L nF O y — O Y. to .� 82 o M w a ^o�o� �� 070 E�g ." 3 I3 fsF� -� - € S€ �a3 m-3 Vi=e m C`c wFo w boe£o¢ -8g €RF 6= em«ems Bps N. 3 b� '�dg 0.011, jQ swe n _ a � � - M1 U i Ig 0.011, jQ swe Rb ,[90S9Z M.9Z,UApS py japun s y I j vAe 1, € z - M1 U i Ig g _ _ Rb ,[90S9Z M.9Z,UApS py japun s y I j vAe 1, € 0 311 v l d N 9 ,11462 M_9Z�IYA0.S -- � M,eZ;16.WS / O B N'.1019 'Bnb IB9w11 HWup'S � La'sL q� P ,nlAL ,po W I s,zE.szppx W � I� eo spl a.ez,Ib.Wx ;� O PoWZ 3,ZF.SLWN N - Qo y $I f^ t b /V/J M.2f,SFppS 1 J - Q Mu 6 MIAMI •`� o Q Q _ J �m N N � O WOpL `o co 3,2L,5yWN Y -o W N �.0[ III 3 O 13 pp ou e<>L ,ppm 3.2f.5ZpON 3.82,16AON O 0 311 v l d N 9 ,11462 M_9Z�IYA0.S -- � M,eZ;16.WS / O B N'.1019 'Bnb IB9w11 HWup'S � La'sL q� P ,nlAL ,po W I s,zE.szppx W � I� eo spl a.ez,Ib.Wx ;� O PoWZ 3,ZF.SLWN ,po Wl 8 O Qo Op DIL t b 3.BL. U.WH M.2f,SFppS C' - as Mu ,Np'apl MIAMI M L[,nAW Q _ J �m o N � O WOpL `o pp Xu 3,2L,5yWN Y 3�BZ,L9.OpX .� o ^ 3 O 13 pp ou e<>L ,ppm 3.2f.5ZpON 3.82,16AON O ze O m IL ,w .pp Dp1 Q M,s9yas O PoWZ 3,ZF.SLWN ,po Wl 8 O Qo .WWI WV]L M.2f,SFppS 3,Z[,SZWN - as ,Np'apl n ,Wool _ M L[,nAW 3.ZC.SZppH _ J �m 8 WDpI � O WOpL M.LL.SLWS N �eny esnoypooM'S n 3,2L,5yWN Y nj .00'001 Zll DO -pp{ M:L[.SLOW e<>L ,ppm 3.2f.5ZpON O x8 0 8 .pp Dp1 Q0 OOL ,pg O PoWZ 3,ZF.SLWN 'NY Qo 7@i 00091 cYy 3 ,pg O PoWZ 3,ZF.SLWN o 7@i 00091 cYy 3 - U LL Cll $ _ 00962 ry .Sp 6ZC MZE,SZ00S n�� � O n N �eny esnoypooM'S n YI Y nj 3 Zll ,ao W e<>L ,ppm n a � � SZ ut G WJOl9 ih ),ZC.CZppN I O OO p9 .3,2C,52ppN �. e ,W'X9 .Po19 � i2C,SZ.WN BL 9L $ LL m 6 1l I O /,zcs.opx r n � I W W pfiW Ap os esi6 c" .SYZ6Z M.zL,5ZW5 ` y O .env apld NwuNs h^ mp � a 7 3 1 / L�'py 4 / }/T19 3.A,6TAON S 0311bldNN O 13 7@i o fi N'Jf)l9 3 / }/T19 3.A,6TAON S 0311bldNN O 13 3 - U n A n Y 3 - - ,,r��"� ili5�►�� � 2 sm� � 'ptl aepull 5 1= of � �3 N a Q� O L-- U VVV ' x -- OOnSI r N r LL N mnL aiek �NwLL FPauNS m '\8L<y 0 n po oL ,00 oL ,m PL SPLs nrf�eg �J�' � � N C LL VW m aonL S o � 90 p2 O $rvO Q r u N 3,ZC,SLWI W W9L N ,,r��"� ili5�►�� � 2 sm� � 'ptl aepull 5 G) 6 NJOl9 0 V1SLOON mg F 8 ICl $f'Y6 .1861 f 9t'05 O ,L 1'111 M Zf 5£1A95 � M:ZLSZA05 .1C 61 M,£(9LOp9 .LZOOZ M,LC,'. l B[99 5555 8 O 2 Om a8 O 6 N]Ol9 IM, ,YY'fL9 3,Z9,5LOON O311tl IdNO 1 - `P J \g JR `� of � O311tl1dN0 � e a _ U ,96'695 M,9Z,lY_O05 ,96'614 -- OOnSI aiek �NwLL FPauNS m '\8L<y "1 i n po oL ,00 oL ,m PL SPLs nrf�eg �J�' G) 6 NJOl9 0 V1SLOON mg F 8 ICl $f'Y6 .1861 f 9t'05 O ,L 1'111 M Zf 5£1A95 � M:ZLSZA05 .1C 61 M,£(9LOp9 .LZOOZ M,LC,'. l B[99 5555 8 O 2 Om a8 O 6 N]Ol9 IM, ,YY'fL9 3,Z9,5LOON O311tl IdNO 1 - `P J \g JR `� � e a _ U - 5 a p F a � C�7 g"r" 2� F 33 5F5 =+o= �zo £ IlW1��,6�G - w. x Im zos ga i r Q8 565 N�ww �kN. RE gR as WnaC� w4 WE N 4� O U) aq<a •j 7 CO < < s n a a 70X. aNg 3 3 E 3 w 2= € kk 8 $ak s3 o3w � d - _ 3- oar a g egg ee e se ee� � ae� � � s � � W 8 sYg o eg¢ : oko k a3. EMN --n- gk au M �, Y '# sad G �£ "r<r £ -a €� < < = as e ERA o €k k Ck�3 a ok5 E k5 ak,"`., k6 — a � " �o pzi 6� - <r 'c< < ki .<. •�w �Y-q' mi.,'"o <o a< <,= i,^. "'o �_ " .msmm V`aos 4= tYe �k�� a 5s =62 6 8 =5 5wo :e .moo �o 6 H=8 ==S -S HER e U x< <m Asa€ss E 26) _MEN _ \ Z5 q !\ % /{ \{\ }j! 2 E !§ { -o jif ) |) ) ()} _} - § 2 )\ , e°=�: �> 2 _ CO k 2 ° / 25� 0 - m _ ( -\ � \ ! 22 s6uimejp uoponiysuo� sawoH uo>reg AWOO Z asegd uoisiAipgng a6pijgynos ' u nW i€r w ng $ o9e [ aag 2 '.Y a s s ss@ sei Ell !Wia �Yg 'xi $3 l�sn €: _ I =e:ase e fr�oR 5� ueld adeaspue7 adeaspue7 LL° 1E 67°t£z H : iq{q 6U glEp3 p"tg:4g q � —E �,�saai ENjl' — ?3 E? e z5��"_3 epi ss i LL° 1E 67°t£z H : iq{q 6U glEp3 p"tg:4g q � —E �,�saai ENjl' — ?3 E? e s... e4PPl ieWluW g '. E E uoi;an�Isu03 sawoH ua»eg Aaao� siel3ap adeaspue7� Z aseyd uoisuipgng aBpijytnogadeaspuelmss.— la�ri Fe}}F 00 az a3 1� ttppit n `a igen eCt g �al H d s 2g �g s2 -@9s F3"=a �$a 3ei U-1 �F' 'HAM ad=z N '�_�__M W; ���� =3g �-�,g� s� a rr °-��g�_ ''-��ae'e aeEgF mais3e-s=s Ear 8ss � 3�i6E€3�"z `s�eic x.g a 6�s s.}in�=e4 "�9" Pn�•a'6�.F�g "a �i ti OF 4a�§s�°a Bg3gEEA fOE 6 U 3��P°alie�@Ss _ u �i E � i; -P}