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HomeMy WebLinkAbout1.0 Application (Expired)Sketch Plan P r eI iminar y PIanFinal Plat SUBDIVISION APPLICATION FORM SUBDIVIS ION NAI{E: 2,/ I fl)C I ,RIWn\JOWNER: q ENG I NEER/PLANNBR/S URVEYOR : Soc,fl,', 75t zaf tpLOCATION: Section WATER SOURCE:C'l-, waf e r 'gh. Co<,n , D-/ ue I Townsh ip S<t c S'cLdrtrs'oa * Range 0 SEWAGE DISPOSAL METIIOD: PUBLIC ACCESS VIA:) EXISTING ZONING:c-L EASEMENTS : Ut iI itY rtO n t Ditch ngq€- TOTAL DEVETOPMENT AREA: (1)Res ident iaI Number Acres Single Famiy DupIexMuIti-familyMobile Home l2l Commercial Industr ial PubI iclQuas i -PubI ic Open Space/Common Area TOTAL: PARKING SPACES: Res idential Commercial Industrial n Floor Area Acres sq sq .fr..fr.(3) (4) (s) la Stewart RECHYEDSEP 1Zz/drJI €,abrzo,%l*Zlb's,Jrr. September 12,200I Garfield County Building and Planning Department 109 8th st. Suite 303 Glenwood Springs, CO 881601 RE: 241 Mel Ray Subdivision Owner:Cinderbetts,LLC 0361 Southside Dr Basalt, CO 81621 927-3125 Architect:Kirk, Watkins & Associates 204ParkAvenue Suite lD Basalt, CO 81621 927-8460 Engineer:High Country Engineering 1517 Blake Ave. Suite 101 Glenwood Springs, CO 81601 94s-8676 Builder:Stewart Custom Builders, Inc. 0361 Southside Dr. Basalt, CO 81621 927-3125 Please find enclosed a soils report and drainage calculations, along with six revised sketch plans Sincerely, Custom Building . General Contracting . Construction Management 0351 SormrsrorDnrvr. Beselr,CoronaooST62l .970/927-3725. Fex970/927-4905 Duane R. ,REcErvED sEI I 1g Statements Reqardin Utilities and Gra dinq and Drainase The property located at24l Mel-Ray Road currently receives water, sewer, natural gas, telephone, and cable television service. The property receives water service from the City of Glenwood Springs, sewer service from West Glenwood Sanitation District, electricity from Glenwood Electric, natural gas service from KN Energy, telephone service from Qwest, and cable television service from AT&T Broadband. The proposed six-unit apartment building will be served by the same utilities, and upgraded as needed- There is no indication that there will be any potential radiation hazards on the site. Several improvements are proposed for the grading and drainage of this site. These improvements will prevent impacts to adjacent lots. Improvements proposed include: curb and gutter. drainage swales, a 6-foot concrete valley pan, a sump drain for the handicap accessible apartments, and a drywell. There are no on-site or offsite drainage basins (lakes, streams, etc.) affected by the grading/drainage of this site. Please see the attached Darinage Study for fuither information. r) The Garfield county Planning Department has completed an initial review of the cinderbetts Sketch planapplication and has determinJd mlt itre application is noii, tecr,oiral cgmpliance with our regulations.The application, as submitted is missine a number "ir"fiirla pieces orlnIli*ution. For your assistance,the enclosed checklist should help you"or your represeniatives complete the application. once your application is determined to be in technical compliance with county Regulations, a meeting datebefore the Planning and Zorungcommission wiil be scneauiei:'"I;;";';;J'#r!r"*ions, please do nothesitate to contact me at 945-9212, attheBuilding and-Hunirg Department. GARFIELD CO(.TNTY Building and planning Department August 2,2000 Stewart Custom Builders 0363 Southside Drive Basalt, CO 81621 RE: Cinderbetts Sketch plan Application Dear Mr. Teague Sincerely, Mark Bean, Director Building & Planning Department enclosure 109 8th Street, Suite 303 945-82l2lfax384-3470 Glenwood Springs, colorado g1601 3:30 SKETCH PLAN REQUIREMENTS The Sketch Plan application shall include a map clearly representing and identifying the area in which the project is proposed, adjacent natural and man-made features and adjacent land owners. 3 .32 The Sketch Plan shall be at a scale of not less than 1":200', and shall contain, at a minimum, the following information, represented graphically or as a map note: _ A Proposed name of the subdivision; _ B. Location, boundaries and legal description of the project; _ C Names, addresses and phone numbers of the owner(s), applicant(s), planner(s) and engineer(s); _ D Date of sketch map preparation, map scale and a symbol designating true North; _ E Topography of the proposed subdivision showing, at a minimum, five (5) foot contours for terrain with an overall average slope of less than twenty percent (20%) and at a minimum ten foot (10') contours for terrain with an overall average slope of over twenty percent (20%), contours developed by interpolation of U.S.G.S. quadrangle contours are acceptable; _ F. General location and dimensions of all existing and proposed lots, streets, alleys, easements, road rights-of-way, irrigation ditches and water courses within and immediately adjacent to the proposed development; - G Description of any natural or man-made features bordering on or within the development which may require buffering or screening, particularly the one hundred (100) year floodplain of any major drainages; - H. Vicinity map from a U.S.G.S. quadrangle at a scale of l":2000' depicting the location of streets, highways and adjacent utility systems within a minimum of one-half (1/2) mile of the proposed subdivision and showing the natural drainage courses for streams flowing through the proposed subdivision with the limits of tributary areas shown where reasonable; and I. Land use breakdown including: l. Existing zoning and proposed zoning changes, if applicable; 2. Total development area; 3. Total number of lots proposed; 4. Total number of dwelling units proposed; 5. Total area ofproposed non-residential floor space; 6. Total number of individual dwelling units proposed for each structure; 7. Total number of proposed oflstreet parking spaces; and 8. Total proposed density. 3'40 SIIPPLEMENTAL INF ORMATI ON In addition to the Sketch Plan map, the following supplemental information shall be submitted, in graphic and/or written form. A. Source and amount of water supply; B. Proposed type of sewage disposal; C. U.S.D,A. Soil Conservation Service soil designations, with interpretation tables attached; D. Statement assessing the impact of the proposed subdivision on the lakes, streams and topography of the site; E. Statement assessing potential radiation hazards to the site; F. Evidence that all lots and parcels created by the subdivision will have access to a public right-of-way, in conformance with the Colorado State Highway Access Code and applicable County Regulations; and G. Anticipated source of electricity, natural gas, telephone and cable T.V. services; Ecww.ussr 122r,ur H ) it';lrr rrl'1 l1-p',,r I:ti. ( it'rttt't llrtic:ti. i Iir 5l)lll ( rrrrrrlr Ilo:rrl l-i-i(,lt'ttrtootl Sllrilris. ('olor-:rrio ti1(rlI I l'ltoItt': ()7{)-()J-i-l(/Sli i rr...:')71)-tlJ5-iiJ5J h pgeo,,, !rltgcotech.corri SIIBSOIL STI.IDY FOR FOTINDATION DESIGN PROPOSED APARTMENT BI.IILDING a4Il{EL RAY ROAD GARFIELD COTINTY, COLORADO JOB NO. 101 579 AUGUST 3I, 2OO1 PREPARED FOR: STEWART CUSTOM BLTILDERS ATTN: DUANE STEWART 36T SOUTHSIDE DRIVE BASALT, COLORADO 81621 HEPWORTH - PAWLAK GEOTECHMCAL, INC. August 31,2001 Stewart Custom Builders Attn: Duane Stewart 361 Southside Drive Basalt, Colorado 81621 Job No. 101 579 Subject Report Transmittal, Subsoil Srudy for Foundation Design, Proposed Apartment Building, 241Mel Ray Road, Garfield County, Colorado Dear Mr. Stewart: As requested, we have conducted a subsoil study for the proposed building at the subject site. Subsurface conditions encountered in the exploratory borings drilled in the proposed building area below the topsoil consist of very stiff sandy clay overlying medium dense clayey sand and gravel at about 19 feet depth. Dense gravel alluvium was encountered at about 26 feet depth. Groundwater was encountered in the borings between 24 and 25 feet below the ground surface. The upper soils were generally moist. The proposed apartment building can be founded on spread footings placed on rhe natural subsoils and designed for an allowable bearing pressure of 2,500 psf. The footings should also be designed for a minimum dead load of 800 psf to limit the potential for heave if the bearing soils become wetted. The report which follows describes our exploration, summarizes our findings, and presents our recorlmendations. It is important that we provide consultation during design, and field services during construction to review and monitor the implementation of the geotechnical recommendations. If you have any questions regarding this report, please contact us Sincerely, HEPWORTH - PAWLAK GEOTECHNICAL, INC. Steven L. Pawlak. P.E Rev. by: DEH SLP/ksw TABLE OF CONTENTS PURPOSE AND SCOPE OF STUDY PROPOSED CONSTRUCTION SITE CONDITIONS FIELD EXPLORATION SUBSURFACE CONDITIONS FOUNDATION BEARING CONDITIONS DESIGN RECO MMENDATIONS FOUNDATIONS FLOOR SLABS SURFACE DRAINAGE . LIMITATIONS FTGURE 1 - LOCATION OF EXPLORATORY BOzuNGS FIGURE 2 - LOGS OF EXPLORATORY BORINGS FIGURE 3 - LEGEND AND NOTES FIGURES 4 & 5 - SWELL-CONSOLIDATION TEST RESULTS TABLE I - SUMMARY OF LABORATORY TEST RESULTS 1 1 2 2 2 J J J 4 5 5 H_P GEoTECH PURPOSE AND SCOPE OF ST[,'DY This report presents the results of a subsoil study for a proposed apartment building to be located at24I Mel Ray Road, Garfielcl County, Colorado. The project site is shown on Fig. 1. The puqpose of the study was to develop recommendations for the foundation design. The srudy was conducted in accordance with our agreement for geotechnical engineering services to Stewart Custom Builders dated August 10, 2001. A field exploration program consisting of exploratory borings was conducted to obtain information on subsurface conditions. Samples of the subsoils obtained during the field exploration were tested in the laboratory to determine their classification, compressibility or swell and other engineering characteristics. The results of the field exploration and laboratory testing were analyzed to develop recommendations for foundation types, depths and allowable pressures for the proposed building foundation. This report summarizes the data obtained during this study and presents our conclusions, design recommendations and other geotechnical engineering considerations based on the proposed construction and the subsoil conditions encountered. PROPOSED CONSTRUCTION The proposed apartment building will be a 3 story structure and have six units. Ground floor will be slab-on-grade or above crawlspace. Grading for the structure is assumed to be relatively minor with cut depths between about Z to 4 feet. We assume relatively light foundation loadings, typical of the proposed type of consrruction. If building loadings, location or grading plans change significantly from those described above, we should be notified to re-evaluate the recommendations contained in this report. H-P Grorecu 1-L- SITE CONDITIONS The site was occupied by a double wide trailer with fenced side and backyards at the time of our field work. There was lawn and scattered trees surrounding most of the trailer. The driveway was along the south side from Mel Ray Road. The property is relatively flat with a gentle slope down to the south and about 5 feet of elevation difference. FIELD EXPLORATION The field exploration for the project was conducted on August 22,2001. Two exploratory borings were drilled at the locations shown on Fig. I to evaluate the subsurface conditions. Drilling access was not possible to the backside of the property due to the fenced yards. The borings were advanced with 4 inch diameter continuous flight augers powered by a truck-mounted Longyear BK-51HD drill rig. The borings were logged by a representative of Hepworth-Pawlak Geotechnical, Inc. Samples of the subsoils were taken with 17e inch and 2 inch I.D. spoon samplers. The samplers were driven into the subsoils at various depths with blows from a 140 pound hammer falling 30 inches. This test is similar to the standard penetration test described by ASTM Method D-1586. The penetration resistance values are an indication of the relative density or consistency of the subsoils. Depths at which the samples were taken and the penetration resistance values are shown on the Logs of Exploratory Borings, Fig.2. The samples were returned to our laboratory for review by the project engineer and testing. SIIBSI.IRFACE C ONIDITIONS Graphic logs of the subsurface conditions encountered at the site are shown on Fig. 2. The subsoils consist of about lVz feet of topsoil overlying very sriff sandy clay to a depth of about 19 feet where medium dense clayey sand and gravel was H.P GEoTECH -3- encountered. Dense slightly silty sandy gravel alluvium with cobbles and boulders was encountered at a depth of about 26 feet. Laboratory testing performed on samples obtained from the borings included natural moisture content and density, and unconfined compressive strength. Results of swell-consolidation testing performed on relatively undisrurbed drive samples of the clays, presented on Figs. 4 - 5, indicate low compressibility when loaded under existing moisture conditions and a minor to low expansion potential when wetted. The laboratory testing is summarizedin Table I. Free water was encountered at a depth of about 24 to 25 feet. The upper soils were generally moist. FOTINDATION BEARING CONDITIONS The upper clays are very stiff and can support lightly loaded spread footings. There could be some potential for heave if the bearing soils become wetted. Precautions should be taken to limit the effects of potential heave to foundations and floor slabs. DESIGN RECOMMENDATIONS FOUNDATIONS Considering the subsoil conditions encountered in the exploratory borings and the nafure of the proposed construction, we recommend the building be founded with spread footings bearing on the natural clay soils. The design and construction criteria presented below should be observed for a spread footing foundation system. 1) Footings placed on the undisrurbed natural clay soils should be designed for an allowable soil bearing pressure of 2,500 psf. The footings should also be designed to impose a minimum dead load of 800 psf. Based on experience, we expect movement of footings designed and constructed as H-P GEorEcH -4- 2) 3) 4) 5) discussed in this section wilr be about 1 inch or less. There could be some additional movement if the bearing soils become wetted. The footings should have a minimum width of l6 inches for continuous walls and i8 inches for isolated pads. Exterior footings and footings beneath unheated areas should be provided with adequate soil cover above their bearing elevation for frost protection. Placement of foundations at least 36 inches below exterior grade is typically used in this area. continuous foundation walls should be reinforced top and bottom to span an unsupported length of at least 12 feet and help limit the effects fo some differential movement. Foundation walls acting as retaining structures should also be designed to resist a lateral earth pressure corresponding to an equivalent fluid unit weight of 55 pcf. All existing fill, debris from the existing development topsoil and any loose or disturbed soils should be removed and the footing bearing level extended down to the stiff natural clay soils. A representative of the geotechnical engineer should observe all footing excavations prior to concrete placement to evaluate bearing conditions. 6) FLOOR SLABS The upper clay soils possess an expansion potential and there could be some slab heave if the subgrade soils become wetted. Slab-on-grade construction can be used provided precautions are taken to limit the effects of potential heave and the risk of some distress is understood by the building owners. Crawlspace and structural slab should be considered to avoid potential slab heave problems. To reduce the effects of some differential movement, floor slabs should be separated from all bearing walls and columns with expansion joints which allow unrestrained vertical movement. Floor slab controljoints should be used to reduce damage due to shrinkage cracking. The requirements for joint spacing and slab reinforcement should be established by the designer based on experience and the intended slab use. A slip joint should be provided H-P Georecs 5 at the bottom of non-load bearing interior walls so that potential heave of the slab is not transmitted to the upper structure. Fill materials for support of floor slabs should be compacted to at least 95% of maximum standard Proctor density at a moisture content near optimum. Required fill should consist of the imported granular soil (similar to road base). SURFACE DRAINAGE The following drainage precautions should be observed during construction and maintained at all times after the building has been completed: 1) Inundation of the foundation excavations and underslab areas should be avoided during construction. 2) Exterior backfill should be adjusted to near optimum moisture and compacted to at least 957o of the maximum standard Proctor density in pavement and slab areas and to at least 90% of the maximum standard Proctor density in landscape areas. 3) The ground surface surrounding the exterior of the building should be sloped to drain away from the foundation in all directions. We recommend a minimum slope of 6 inches in the first 10 feet in unpaved areas and a minimum slope of 3 inches in the first 10 feet in paved areas. 4) Roof downspouts and drains should discharge well beyond the limits of all backfill. 5) Landscaping which requires regular heavy irrigation should be located at least 5 feet from foundation walls. LIMITATIONS This srudy has been conducted in accordance with generally accepted geotechnical engineering principles and practices in this area at this time. We make no warranty either expressed or implied. The conclusions and recommendations submitted in this report are based upon the data obtained from the exploratory borings drilled at H-P GEoTECH -6- the locations indicated on Fig. 1, the proposed type of construction and our experience in the area. Our findings include interpolation and extrapolation of the subsurface conditions identified at the exploratory borings and variations in the subsurface conditions may not become evident until excavation is performed. If conditions encountered during construction appear different from those described in this report, we should be notified so that re-evaluation of the recommendations may be made. This report has been prepared for the exclusive use by our client for design purposes. We are not responsible for technical interpretations by others of our information. As the project evolves, we should provide continued consultation and field services during construction to review and monitor the implementation of our recommendations, and to verify that the recommendations have been appropriately interpreted. Significant design changes may require additional analysis or modifications to the recommendations presented herein. We recommend on-site observation of excavations and foundation bearing strata and testing of structural fill by a representative of the geotechnical engineer. Sincerely, HEPWORTH - PA CAL, INC Steven L. Pawlak, Reviewed by Daniel E. Hardin, P.E SLP/ksw cc: High Country Engineering - Attn: Roger Neal H-P GeorecH APPROXIMATE SCALE1' : JO' 7 H') 5734 I I 5736 5737 5733 5735 I I I I l/ttttII I I I I I I I I I I I I I I I I I I I I 5733 1 I 5738 II ),' I I I I I I 5734 1 \I /BoRrNG2 / / I I 5736- 57J5 5737 s738 MEL RAY ROAD tlll PRO?OqED BUrfrN9 I .l ORING I I lB 'r01 579 HEPWORTH_PAWLAK GEOTECHNICAL, INC LOCATION OF EXPLORATORY BORINGS Fig. 1 BORING 1 ELEV.= 5737' BORING 2 ELEV.= 5735.5' 5740 5740 5735 5735 '15/12 wC=16.4 DD=115 16/12 5730 32/12 WCF16.5 DD=l18 5730 5725 21/12 WC-14.5 DD=119 13/12 rc-i9.3 DD=llO UC=5600 5725 ooU- I o o otr 42/12 o 4,L I cI o o lrJ 5720 15/12 5720 27 /12 5715 41h2 5715 o.2: 0 5710 5710 10/1:t5/O 5705 15/3,10/O 5705 5700 5700 Note: Explonotion of symbols is shown on Fig' 3- 101 579 H EPWORTH _ PAWLAK GEOTECHNICAL. INC.LOGS OF EXPLORATORY BORINGS Fig. 2 LEGEND: TOPSOIL; orgonic silty sondy cloy, moist, block. CLAY (CL); sondy, very stiff, moist, medium browq low to medium plosticity. Hg ts.....1 IiE] ffi SAND AND GRAVEL (SC-GC); cloyey, medium dense, moist to wet with depth, mixed brown GRA\EL AND COBBLES (GM-GP); slightly silty, sondy, proboble smoll boulders, dense, wet, brown, rounded rocks. Relotively undisturbed drive somple; 2-inch l.D. Colifornio liner somple. 1 I I Drive somple; stondord penetrotion test (SPT), 1 3/8 inch l.D. split spoon somple, ASTU D-1586.r Drive somple blow count; indicotes thot 15 blows of o 140 pound hommer folling 50 inches were5/12 required to drive the Coiifornio or SPT sornpler 12 inches- + Free woter level in boring ond number of dolns following drilling meosurement wos token. Depth of which boring hod coved when checked on August 24, 2OO1- NOTES: 1. Explorotory borings were drilled on August 22,2OO1 with s 4-inch diqmeter continuous flight power ouger. 2. Locotions of explorotory borings were meosured opproximotely by pocing from feotures shown on the site plon provided. J. Elevotions of explorotory borings were obtoined by interpolotion between contours on the site plon provided 4. The explorotory boring locotions ond elevotions should be considered occurote only to the degree implied by the method used- 5. The lines between moteriols shown on the explorotory boring logs represent the opproximote boundories between moteriol tlpes ond tronsitions rnoy be groduol. 6. Woter level reodings shown on the logs were mode of the time ond under the conditions indicoted. Fluctuotion in woter level moy occur with time. 7. Loborotory Testing Results: WC:WoterContent(%) DD = Dry Density ( p"f ) UC = Unconfined Compressive Strength ( p"f ) 101 579 HEPWORTH - PAWLAK GEOTECHNICAL, INC. LEGEND AND NOTES Fig. 3 bq co'6coo-x UJ I E .9oaq)t-o- EoO 1 0 1 2 5 0.1 1.0 10 APPLIED PRESSURE - ksf 100 bq E .9(r,coo-x UJ I c .o(r, o,ol-o- Eo(J 1 0 ,l 2 3 1.0 'to APPUED PRESSURE - ksf 100 Moisture Content : 16.4 Dry Density : 115 Somple of:Sondy Cloy From:Boring 1 of 2.5 Feet percent Pcf ( \) Exponsron uPon wetting Moisture Content : 14.5 Dry Density = 119 Somple of: Sondy Cloy From:Boring 1 of 10 Feet percent Pcf \r \ Exponsion upon wetting 0-1 10'l 579 H EPWORTH _ PAWLAK GEOTECHNICAL, INC.SWELL CONSOLIDATION TEST RESULTS Fig. 4 Moisture Content = 16.5 Dry Density = 118 Somple of: Sondy Cloy From: Boring 2 of 5 Feet percen t pcf ,No movement uPon wetting 0 N c .9oooo Eo C) 1 2 3 '1.0 10 APPLIED PRESSURE - ksf 1000.1 101 579 HEPWORTH _ PAWLAK GEOTECHNICAL, INC.SWELL CONSOLIDATION TEST RESULTS Fig. 5 o o co @ g G Etsov:loo9@E u @ o (,) C(oo o C) Coa o c) Ec tu @ ^qH>rzol =o9-z=A@OEEqosFz=@JO oo(o (f) q ts E) 0EUEduFF o ;HA<=: d- _-L^ Eoo120uHg]Eu-<9@ zo tr Eo oz3<ga Jr>?<& <aE>!= =x9B<--u-zt rJ)o)@ o EJU^ ;929<ooz=o t(o to + LO d (r? o) zo tr o u E EEo- (,z oE s N o LO o N o')r. r.r) o oz mo-) aF)f QL! u Fa gF CC-o[T.J F;<UF <L -)Fco J LLo E. =(n Uz j Iz o IIJFo uJ(., J =o- I F E,o =o- lrJ 5!" ' ' ,REcg\trt] sm r z zM Reviewed bY: Roger D. Neal. P.E. Project Manager I, Roger D. Neal, P.E., certify that the proposed design, constructed in conformiry with engineered plans and details, will not cause damage to adjacent or downstream properties resutting from erosion, flood or environmental impact during construction- and after completion. This statement is not valid for storm events outside design parameters or circumstances beyond my control' DRAINAGE CALGULATIONS Mel-Ray APARTMENTS GLENWOOD SPRIAIGS, CO HCE JOB NO. 20i rc74.59 August 29,2001 ( Edward R. White, E.I Design Engineer k:\wp\20 I \ I 074\draimge.doc 1517 Blake Avenue Suite l0l Glenwood Springs, CO 81601 Telephone (970) C+5-8676 - Fax (970) 945'2555 l4 [nverness Drive East Suite B-14'1 Englewood, CO 80112 Telephone (303) 9254544 - Fax (3O3) y254517 SECTION INTRODUCTION HYDROLOGY DRAINAGE PLAN SUMMARY DRAWINGS APPENDIX: TABLE OF CONTENTS Vicinity Map (8.5" x 1 1") Grading and Drainage Plan ( I I "x 17") Calculations PAGE I 1 1 1 Introduction The proposed property improvement is located at24l Mel-Ray Road in Glenwood Springs. Colorado. This project proposes the construction of a six-unit apartment building on an existing lot. See the enclosed Viciniry Map for site location. Hydrology The hydrologic methods used for this stud1,' are outlined in the Soil Conservation Service (SCS) publication ''Procedures for Determining Peak Flows in Colorado" (1980). Peak on-site flows in this area will be derived primarily from rainfall because the site is belorv 8000 t'eet in elevation. Because of this. the storm drainage system should be adequate to handle on-site spring snowmelt runoff. This site does not fall within a Federal Emergency Nlanagement Agency (FEMA) Flood Insurance Rate Map boundary. Drainage PIan The drainage basin for this study was taken as the surveyed area. Stewart Custom Builders provided the proposed planimetrics. All storm water runoff from the proposed building, foundation. and paved parking areas will be captured and directed into the proposed drywell. The detention volume required is based on the volume needed to lower the peak from the 1OO-year runoff under proposed conditions to match the 100-year runoff from the basin's natural conditions. The general storm water runoff patterns are sho'um on the enclosed Grading and Drainage Plan, along with the general location of the proposed drywell. Despite the dryw'ell size being based on the 1OO-year storm. acceptable overflow paths should be provided. Overlot grading shall ensure that drainage is directed a*'ay from the building in all directions. Erosion control measures should be followed during construction to insure that adjacent sites are not impacted from sedimentation. Summary Drainage for 241Mel-Ray Road has been designed to mitigate the expected impacts of storm water runoff as outlined by the City of Glenwood Springs drainage regulations. Appendix Prolect Job. No.zol to14 ot By E/\'1,,/oei.e 8/t5/e!- 5t."7- Ck'd by - Date o'",tadzSubject Page I of fofa.t ".- e oh f; re-ct = .l f nl',Lr'C tor:c C ,aboSet t'CL*,5ltno ( H P3.Z-5 o I f (rz1 .87J)7 (s $s 'gLt)Q+:; . 15 Peo:(!f t 8z 8.1 521 i I3_18"L... /ir: ,d4 o,3gr AH 'rc ) lt.1 , L3n',th = llZ 5t "r!',rn = 5 *f /tre l, C eacen Le A Ei:,, L-t l-,ere4 L= LenlTh i .: .,,)'e.< AH-e-El*rr.t,'t.' ln !t.o,3gr 6 aJ- =-L a cZk $orgz o 7 l-eZ{!r fe{;r> = 2,V ',.)r Ihr ?/. f/c'..'" iq CCPgt lco yr -c 2rl t-2. oi .- c Pec, { = l, e?" - I '?7'/ tt b)]- ( P?t, 20 ) '/r firer.vL)sirc C 'c0 + Z€/.,t >- h 4s.-. - / 7 e7 -) t,r = (' ,-fl( p6or1t,")l,o7;.,L ) q =Q , fi.e"iLy Lpecx 7 mt -c.'/o3 ds Z) Q,'a 1?o c;*\{-l-ll .a /\ I 2 =)z - c. tlbs C 5Zga aL ICO (t ,1 ,,,),Lloe GLE\'/v000 SPRiNcS, C0 923 Ccoper Ave . Gienwocd Sornqs CC 1 601 ENGLEWOOD, CO 1J Inverness Dnve East. Suite D-136 . Erolewood C0 90.112 GRAND JUNCTION CC (-q70) e5a-0935 Project Job. No. GLEN'//OOD SPRINGS CO 923 Cocoer Ave ' Glenwocd SDriras CC alall DaagfiSlkl-Ck'd by ENGLEWOOD CO '14 lnverness Drive East. Surte 0-136 . Engle,ruood CA AA112 By EBut Date GRAND JUNCTION, CC (970) 858-0935 Subjecr Or"; ^ot* 5fr4 pase Z of cose. -rla1cf"i Hrea= lo6o5 rtz L I C""J , t;, ,v tloo, qB 'l t1rL) z { Lo u Jr:rng" I I zto q5 8q I toozrof .a1 *c 5t G n, €,t t,ra !;c, ,t Le-jth1= IHZ dlletnt:" ^. 2 5 t'"t !tc (5 3."r --l - >:{' ltt -., ( tu>!:*:), - ' / \ t '' =. | ,lr^ s -T"=c.oZl ) Ute T* -Te-r l i F:,. ,, :- t; fl-t'€a') I 1?-p"ok= ?':' "t |"'l? 2-oa :, c' IOClri ?,2 /: 7 zJ tt ZLj n r 24 \. I l, o?'l = l.zl t' -. Ft. -l I ,?r i Iqt '.+5 aLtOt = O, 7 o'l cgs J ? o,6 3'Q cJS Project Job.No.M By ER ul oateS/tjleL- ckd by - pqts Subject eage ) ot GLENWOOD SPRINGS, CO 923 Cooper Ave . Glenwood Springs C0 81601 i-. _ ,: ",c :::: ,- _ ENGLEWOOD. CO 14 In/erness Drive East. Suite D-136 . Englewood C0 80112 GRANO JUNCTION, CO (970) 858-0935 .,-^ 147 1114 t-,, fio,ts ,,-jPc; L rt t?Ct^ v't 5'r,3 ,rt.a ; fr's { IJI f,.1hgr'e fi Ca Yt C,iJ; tola.C 5a +L {aot-I C fisSu* I tmp# 1 . txt Basin Output Pond Name Dist.ribution Type Frequency Type Area Peak Inflow ... Peak Outflow .. Runoff Runoff Volume Storage Volume Maximun Storage Type II 100 years 10605.0000 fr2 .1112 cfs Elevation 1 650 566 375.1685 0.0000 fr .460 .866 cfs in 0 6 Z 0 0 1 fr3 fE3 Page 1 :'o ao-o o c o)o G't @ 3o o)-oq a 'a (!) -o .C, o-o:o 0) (o o a, oz- ooo{ N$-f-U)o=rO))o<N 0)-o=s8 aCo (tr =(J= Gt() I.U c) =-o q.) F(n 9qo)@ -lfl ol 3lzlol -dd(El u.ilJ "g_ta, (ol LJd .ol CIg a,B el Edd .et (5l =ld d C, -UbIto- j>Ifi]>(, oooooo) otr- =o;>=a q) q) ooooooCCCCEC o6 EaEi"r (r) Lo F- o) r c.)sioc"i<crcic"jN(OTLOO)tf@rrC!NN(OCD :: o^ o =i)>d (oNcoqf\a SsSE$SE :oc =.o>.ii5sgO-gd ^ (o (e o, .o e.r oQ Xo;Odccicci> -rCOtf)f'*Or;- ccqeqqqqrororolr)lr)tr)rossvrir:f$$ - LQo3E-oU)t5 b.o- -Coo>o o) SoopF o> 6 ro'1 \qqqq^; c\l rr) o) N (o o,YJoN\f1.-o)rl-rr--r(\ o_I9cE(6o lfg-oO cOC.)NTOO)@cid+c"ic.i cio,O) tf) r F.- (O O, STNOCDACSlr) -Ei o^ o o-o>cDS()(OF--cOO' o c) -oo.E o -G-Co\o-^e9v ^o5 o;o*,oi5> '64 9+(:D -tsE--c3 h'odm Uv€6qp2N Ed OC!o I l,oE.=F*f .g c.)oq)>o Fig ure S- I Pook Dischorge in csm Per inch of Runoff Versus Time of Concenlrotion, Tc Type I I Storm Distribution Type I l-A Storm Distribution o.{ 0.3 0.6 0.7 0.t o.9 I Time of Concentrotion Tc - Hours o 43 7 a7t lo eoo aoo 700 600 300 400 500 ! .E '* c !l C) I 3,'*rr eOoEtoo .o 70 oEo xo60o(L ao !o 1 { t I ?o to z 45 n ., { +r-+++ - rlti J-rr-l- I .trlr,i lrli ::-1+ ++ + ___-l--r--t* --1-+---.1---]-+ -#-l--l-l-r----1-l-r--r- -_)---!l-| +J_ --1-----!-l-r!-l- __r _ ----!-l_ rll I lll o.l o.z OJ l2 to Table2-2.--Rrnoffcurvenr::lbersforselectedagriculturali, urban land use. (Antecedent moisture condition II' and I" 2-5 suburban, and = 0.2s) I/ for a rclc dctaltctl ttelcrtptlon of s€rlcul'tural land urc curv' nuobero refer to [ettoaat krglneertng x*ii'**l'-s""til" u, Itvdrorog/, chapter 9' Aua. 1972' 3/ Cooa cover le protcctcd froo grazlng and lltter and brulh cov'r toll' !/ Clrrr. nuEbcrr are coEPuted asturllng the.runoff froo the hourc and dr''vevay ts dirccted to,arac-tic itre'L vtth a trlnltruE of rcof vatcr 'llrcctetl to lavna vhcrc adtltlona.]. ldftltratton coulil occur' !/ ftr. r.ErlDlng Derarlou! arcac (hvn) rrc conrlilcred to ba ln good D'ttulc coadltlon for thaaa cuFa Dl8bar' ' !/ In ror vlrDr cltErtor of thr countr7 e curvc nuabcr of 95 ory b' urad' FTDROI.OCIC SOIL GROUP DBcALAI{D USE DESCBIPTION 88 ?8 9I 8I 8I ?I 72 6z Cultlvated Lana!/: slthout conservatlon treattrent : vlth conservetlon treetEent 89 8o 86 ?tr 't9 5r 58 39 Pasture or rangc ).and: poor condltton gootl conditlon ?I ?8,830Meadov: Sood coadltlon 83 77 7'l 70 66 55 Lt 25 tlood or Foreet land: thln stand' Poor covcrt no uulch good co'er3/ ?lr 8o 8L 5I39 L9 Cpen Space8, Iavns, Perks' Solf courseg' celoeterles' etc' good condltlon: Srass cover on 797 ot uore of the 6rea areafoto75onI,0Ia5cove+condl !onfair gr ft 9ll 959289coEocrci.al antl buglneaa areas (85I inpewlous) 9r 93888rInduatrlal atlstrlcts (?21 tnpervlous) 92 87 85 85 8lr 90 83 8I 8o 't9 'l'l 6r ,'l 5L ,1 85 1' 72 ?0 68 Bcel.dentlal: !/ Aver!8e lot slze 1/8 acre or less 1/lr acre l/3 acre 1/2 rcre 1 acrc o) 38 30 ?, 20 Averlge t ropervlous!/ 989898Paveit ptrklng lotr, roofa, drivcvayri rtc 2l 98 91 89 98 89 @ 98 16 '12 98 8, 82 Strect! aad roadr: paveat vlth curb! and etora eeterei/ gravel, Alrt J 1 lncha3 0 1 10 11 L2 13 14 15 16 t7 18 19 20 N0TE: Runolf value detetmined by equation Q = RUNOFF FOR TNCHES OF RAINFALL L{toc ( P-0.2 S)2 P+ 0.8 S 2 3 4 5 6 7 8 9 CURVE 87 0.9 0. 1? 0.83 1.65 2.55 3.q8 4.43 5. 39 6. 36 7.33 g,3l e.3c 10. 2e I I.27 12.26 L3.25 L4.Ztt 15.-23 t6.23 L7.22 L8.22 I9.21 REFERENCE: National Engineering Handbook, Section 1, HYDR0L0GY 0.8Tanthr0.4 0.5 0.6 0.70.0 0.1 0.2 0.3 0.05 0.0 9 0.130.00 0.cI 0.02 0.61 0.68 0.75o.22 0.28 0.3 0.40 0.4 0. 54 1.48 1.570. 9l 0. 99 r. 15 l. 3l 1.40 2. 19 2.2e 2.37 2.461.74 1.83 I.92 2. 01 2.10 3. I0 3.20 3.29 3.392.64 2.7 3 ?.8?2.92 3.Ct 4 .04 4.14 4 .23 q.33).57 3 .66 ).7 6 3.85 3.e5 5.294.9C tr.00 5.10 5. 194.52 4 .62 4.7L q. 81 6.06 6.16 6.265.48 5.58 5.68 ,.77 ( o?5 .97 7.Ltl 7 .236.55 6.65 6.75 5.84 6. 94 7.0q6.tt5 8.02 8.12 8.217.t13 7 .53 7. 63 7.72 7 .82 7.92 9 .00 e. tc 9.20E.4l 8.5I 8. 6l 8. 7I 8.80 8. 90 1C. t89. 89 9.99 10.o89.39 9.49 9. 5g 9. 69 9-79 11.1710. 7I T ,J. 87 t0.e7 I1.07I0.38 10.48 10.5e IC.68 12.06 I2.16.37 .q7 .57 11.67 I l.7o t t.6 r1.96 13.r5t2.85 I2.e5 I3.C5I2.36 12.46 2.56 12.66 L2.75 1rr . 1413.84 I3.9C I {.041f.35 13.45 13.55 13.65 r3.?5 15.I414. 84 I4.94 15.0414.34 Iq.(4 14.54 4.64 L4.7 tt 15.91 16.03 16. t315.33 [5.43 15.53 15.63 15.7 3 I5.83 16.92 17.02 17.12I6.33 16.43 16.53 16.63 16.7 3 I6. 82 18.02 le.l2L7.12 L7.q2 L7 .52 17.62 17.72 L 7.82 L7 .e2 19.1IIb.81 t8.91 te.0i18.32 18.42 18.52 18. 62 18.7t 67 fiWsTl*.'.'j:H$,t*t CURVE 95 RUNOFF FOR INCHES OF RAINFALL ziyr lO0yr 0.9lnchr! 9 10 11 L2 13 14 15 16 t7 18 19 20 N0TE: Runoff value determined by equation Q - 0 1 2 3 4 5 6 7 8 o. 48 1.39 2.lrt ).71 4.)2 5.31 6.3I 7 .3C 8. 30 9. 3C I0.29 11.29 12.29 1 3;29 14.29 L5.29 16.28 17.29 18.2e 19.28 (P-0.2 S)2 P+ 0.8 S I REFERENCE: l{ational Engineering Handbook, Section 4, HYDROL0GY Trothr 0.80.1 0.2 0.3 0.4 0.5 0.6 0.70.0 L.7 O.2t 0.32 0 .400.0 c.05 c 1.01 l.lr 1.20 1.296c.65 c.83 r,. 96 2.06 2.I6 2.251.48 l.5g I.77 2.q5 2.55 2.65 2.7 4 2.eq 2.94 3.04 3.lq 3.23 3. 93 4.02 4.I2 ti.223.43 1.53 J.63 3.7 3 l.ei 4.92 5.C t 5.TI ,.2Lq.42 tt.52 t .62 4.7 2 q.e2 5 .41 5. 71 5.eI 5.9L 6.01 6.lI 6.2I5.5I 5.61 6. 90 7.00 7.10 ?.206.41 6.5I 6. 6l 6.70 6.8C 9.20.40 7. 50 7. 60 7 .70 7.ec 7. 90 I .0,)g.l0 e .0c g.lc 9 .208 .40 8. 50 8. 60 8. 70 8.80 8. 90 t).4 9. g9 9.99 10.09 10.1990999.69 9.79 10.39 I C.49 I0.?e rC.89 I0.9e 11.09 I I.190.59 0.69 12.09 I2.19I r.39 [ 1.49 t L.5e I1.69 ll.7e iI.89 ll.ee 9lr989.99 13.09 1q.19I1.39 I 3.49 [ 3. 5')I3.69 i1.79 r. 3. 89 13.9e 14.09 I5.1914.39 L4 .49 lzr.59 14.69 14.?9 I q. 89 4.99 I5.09 I6.1815.39 [ 5.49 15.59 I5. 'J9 15.79 1r.89 15.99 16.08 I6.l8 16.48 16.58 16.68 16.78 i u.88 l6.e?17.0e 17.18 18.18I7.38 17.48 1.7.53 I7.68 I7.78 i7.88 17.98 18.08 19.188.38 1e.48 18.58 1e.68 18.73 I e. 88 18.98 19.0e 19.39 19.48 L9.5iJ Ie.88 t9.e8 20.0a 20.t819.68 Le.78 ,ffi ffi# 7S 20.28 SU BJTCT PROPTRTY q 4 I 9 2 ,o +sr Htu E I n g I g IJ 14n ST. t t5B Sf-g q I I t7 LO g 1B c 29il sT HIGII COUNTRY ENGNEEBI}IG, INC. 923 CIOPEB AIENUE STEWARI CUSTOM BUILDERS GARFIELD COUNIY. COLORADO i/ELRAY q.EOIYEIOT{ VICI{TY IIAP 1 "=2000 VICINITY Pt-loNE,DES. ERW CK rILE NO. 2011074 SHEET lFAX' (970) 945-2555 DR ERW DATE 8-16-01 ,i .rLi/ r/,' lU ,iU ,.,, c)UU1 N 0i'5):2'O ci" t, / lt O() .,9 /" ,,I' tt .a (l) Cx t^'\ (^ j O m ,U 1)ortn .-_.\xonH lY |.t) E: e5 o :E .) u - (rl (i) (-r t' (..1 Ir) t""" I" "'l (.1 I J i I N iO t l'. i\ UJ() s 01 '51 '53" w /5 OO' c)25.o' tt t I I iti Ilr aa 99 8C ;;.xi,-3c888qfi1flflffqEr::96rl 9C;l ? 8g , ! a vi (! N ! 9) bi : I (,]+ $ (, (,! UI ! G (! .t (-n (n (.J --J i; .. (! tt,\]'i:.(, O) (,IA N' llDllu {, }{ (! --J U]c) o(, I I I sI Cn{U(, I i I t ,.'.,!:' . rl I I c<i"-obL) T)-;=F1 1mNrnrnrryftryfrrhl-mr FEPmI.rrl --{Oi6zo27" i I J' GI(,) o) (! (! o) (D LJ (n 9)(() 1 I ! {() )J tla 'n O fJ rrl c) tr1 C)Tl %o'l Aru lls o ll- US t,-.\ tsd€r5zo GLTNWOOO SPRIN6S. CO IvIELRAY SUBDMSION GRADI{G PLAN t';\F€-l0l COUI{IRY Eto\f,Eillo. nC. o2a @oPEn AtE {rE Cr-ENlaroOO 8Ff\8. @ E6Ol Fn(970) 945-CO76 Ff(e70) 945-2556 RTMSIONDts FI a: DB DATI CK. tnw GRI tRw 9- 7-0r RON \.)ii.)i\l'trr.rJ\rlU1\ tui,i\uwg15i,1 Uwq M0, Sep 10 1b. JJ 4i 2001 N ()1'1).)'()9" t: /lt Ot) lf, IBlzlo I I I i J I ] '/i 1 p B {IU I g li I x I I 14 ,-ri - 11.44'(o Ol UI il! ;; .-- -.-'--- -1 i! jl 44' L !i I 6 N ! h o O), It frl t t, )J(! (! L fr 7 o t !O b a n(, rnrrn =loz 7 4', --.-_ __ t tr cl, 't I 10 32 (!I N NJ d (, / -l- 3t,t(, (.)l,t ()o (,) A) -> Irli_ )J() (l trz (x) .r.(rr (oA (,{ NJoP+(, cf, taz o)EUroFli N(,Nix(, Ftz col'G(I)(ONPs..Ln C)0o n) ,]J !o-I't 1)z ()O)I'? (x(o (ir ()J (_^ :-(^ j ar)o l/) (Ir ( r) ,: (^l i o 7l o a.)-f5 lr-tlooooood l+ t - t' T - - f, 1"""() -'..-i (..tt >zzo:tc(:m >q)mrrFlm-()LIO,r .IJ OOrqznn<9mZO-Zl{Or, rn -.t|rr'6> $ * q ilE : i 3 -loi . il ,lg n - Alr- n - nt83 816INIJ," f; ldri iii lg,>UC).. ..o OC] I UI azz,CC '.,cJo a] /) l,t () () a-oralz I I..rO,Oum(: q1r UUC) oxr az{oztrlc)r6a-!(- ZOOm-l6AC.z1)IiC)Oa!\()a NO UI OAL tn,() J 6 a) C]o Cn T o L la (! (t) zo -{-Tl of, ooz U) {f,CoJoz I F N i O. 25 O',Ftz coA(, (o+NiO}' a (, s 01.51,5J" /tt.OO' )) Olt t I DAIEDIS c(. DR fRw IIDN ERW O6 D tsp zio{-'5z o l)^'rE 8- ?9- OtMASIEE UIUTY PLAN CLTNWOOD SPRINCS, CO I/IELRAY STJBDII/ISION 8I1E PLAN llol CO{.,NrFy Etg\EEmo 0rC E23 @OPE8 AVEilFo_El.rarooo 8PtlG. @ ssolPH(970) C45-6070 Fx(e7o) 94s_2a$FrtE: Spl u \SU:,r,r,liUJ\;tu1\1U/,1\riwg\Utt.rtwg Fr,r Sep 0/ 15.,r8 Jll i1001 I g Q I c .A --__1 -l $ioa F$ ? L g; Bhe6 ;i oa_ tfr rF EilI EfrS 5HF I'6 8Ed iFF'El1 ciql el aI xd lololzlolr l= t, ;lH l=t> l5lm IE il I I I 'i: l lP ? I r{I efl<g' l-oh H t;lzlo l:crn l-- loln l: lrrl IF tfi I I tc i F ! I 'c d 8 F e 9 2 ? 99 l9 igr iE { ' F E! BF ';'; ;; II H ;. !\,,-894 : :E ia !lri;:tsai F 9r <; rA:!$'.rc8", 9;o I't 5A 9S r9 n 0 h0. ,0 0, ooo EH? 5HE x'd BIT' <8cl q.i 3l l4 oP f;; ,_l L iti i II .A I lolnlolala .to;l> t:lr-tl;l; dEI B; d;al:B i3 ;h t2' o 0 I v 6" o -l @ E 15l-bt,l- l>D ai Z(] nU C)Cn @ k C)C -l--l TNn o Iol I T@ Oo<fr @() Acmtr oozIzc a o@> nnI tt I a e E! c i J:I !it P{il Pg ad3r ti trieu r - zoo ! -- -.t -t) o n ! 3Tl{ c rl I d p t I I d q P a tr5da'5s I B { I EE! tr66 -8 ix tll I 7 ? 9i!E..' aq lH irc6l tsfi q: 6E 6l 6n'iin xI I iIY6 iB 9g 8H Ir lrlmln ls l2 ln 1.,lo l= lm lr> l-rlo l=l!l>lr EP t- ed 3 I F ! F H I cotr Bq.8iF F5i 9,r4 ^,4!i.l!r3 6fi' P c' 3 a ? e B E il!E ig:t Eins cI x; iiil ;xl g3 ta !, DIS DR t Rr{ tRW oa ! BflI '-r5zo GLTNWOOO SPRINGS. CO MELRAY SIJEDUIS}ON DETAL STIEET l€'{ COIJNTFi ETOEEE\n. NC E23 @OPEfl AIEM,Ect-E IIVOOO 8pr\8. CO SrOrft((e70) e45_lo76 FX.(e7o) c45 2556 CK, frLt: OAIt RDN 0[I 9-7-01