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Home My WebLink Aboutcoa.lu.ca.190 Park Ave.0040.2012 THE CITY OF ASPEN City of Aspen Community Development Department CASE NUMBER #0040.2012.ASLU PARCEL ID NUMBERS INTERPRETATION PROJECTS ADDRESS 190 PARK AVE PLANNER JEN PHELAN CASE DESCRIPTION INTERPRETATION REPRESENTATIVE GILBERT SANCHAZ DATE OF FINAL ACTION 7.11.12 CLOSED BY ANGELA SCOREY ON: 9.6.12 00�n 2df Z f�-S 7E�dilt ord N avigate Form Reports Format Tab Help P r+ rs? _ a )• - - - - " _'°a jump_i . .� 0 -- Routing Status JFees Fee Summary Main Actions l Attachments Routing History Valuation j Archf Enq Custom Fields !Sub Permits Permit type Aspen Land L tse Permit# 004ii 2012 ASLU Add rs 19D PARK AWE AptJSuite ,. - c C' =ASPEN State CC' Zip 81611 CT C, Permit Information � . Master permit Routing queue asLr07 Applied 7111x092 Project Status pending Approved Description APPLICATION FOR LUC INTERPRETATION OF NATURAL GRADE FOR 190 PARK AVE Issued FEES OF$315.001 HR PLANNING ARE WAIVED PER CHRIS BENDON-SIGNED BY JEN . PHELAN ClosedtFinal - Submitted STUDIO B Clock Running Days Expires 7r8x013 Submitted via Owner - Last name ZALE First name IA LTON 190 PARK AVE ASPEN CO 81611 Phone (312)576-4821 Address Applicant ❑Owe[is applicant? ❑Contractor is applicant? Last name STUDIO B ARCHITECTS First name 501 RIO GRANDE PL 104 Phone (970)920.9T287 Cust# 23032 Address ASPEN CO 81611 Lender i Last name First name i Phone O Address I r - T AspenGold5(sery re)angelas- 1 of 1 or vor v COMPLETE •N COMPLETE THIS SECTION ON DELIVERY • Complete items 1,2,and 3.Also complete A. Signature item 4 if Restricted Delivery is desired. x ❑Agent • Print your name and address on the reverse ❑Addressee so that we can return the card to you. B. Received by(Printed Name) C. Date of Delivery • Attach this card to the back of the mailpiece, or on the front if space permits. D. Is delivery address different from item 1? ❑Yes 1. Article Addressed to: If YES,enter delivery address below: ❑No Marjorie and Timothy Rodell 3. Se ice Type PO Box 8005 .,Certified Mall ❑Express Mail Aspen, Co 81612 ` ❑Registered ❑Return Receipt for Merchandise ❑ Insured Mail ❑C.O.D. 4. Restricted Delivery?(Extra Fee) ❑Yes 2. Article Number ( 91 71,99 9991, 7030 0694 3455 Transfer from service label) PS Form 3811,February 2004 Domestic Return Receipt 102595-02--M--T540 'A COMPLETE • Complete items 1,2,and 3.Also complete A. Signature item 4 if Restricted Delivery is desired. X ❑Agent • Print your name and address on the reverse El Addressee so t that we can return the card to h you. B. Received by(Printed Name) C. Date of Delivery • Attach this card to the back of the mailpiece, or on the front if space permits. 1. Article Addressed to: D. Is delivery address different from item 1? ❑Yes If YES,enter delivery address below: ❑No i i Colleen Grosz 155 North Harbor Drive #3612 3.��,�S_,e�``ice Type I Chicago, Illinois 60601GertifiedMail ❑Express Mall Registered ❑Return Receipt for Merchandise I ❑Insured Mall ❑C.O.D. 4. Restricted Delivery?(Extra Fee) ❑Yes 2. Article Number i (Transfer from service jai 91 7199 9991 7030 0694 3448 PS Form 3811,February 2004 Domestic Return Receipt 102585-02-M-1540 per k ATTORNEYS&COUNSELORS AT LAW JEROME PROFESSIONAL BUILDING 201 NORTH MILL STREET,SUITE 201 ASPEN,COLORADO 81611-1557 Sherman & Howard L.L.C. TELEPHONE:(970)925-6300 FAX:(970)925-1181 OFFICES IN:DENVER COLORADO SPRINGS•ASPEN-VAIL STEAMBOAT SPRINGS-PHOENIX-SCOTTSDALE RENO LAS VEGAS ST.LOUIS Curtis B.Sanders Office Number(970)925-6300 Ext.214 E-mail: esanders(a)shermanhoward.com July 17, 2012 Via Certified Mail, Return Receipt Requested and Via Email: mrodell(acz,comeast.net Marjorie and Timothy Rodell P.O. Box 8005 Aspen, Colorado 81612 ca2premi eri vest.n et Colleen Grosz 155 North Harbor Drive 43612 Chicago, Illinois 60601 Re: Milton Zale, Trustee of the Milton Zale Trustee dated December 18, 1980; Redevelopment of Zale Property Ladies and Gentlemen: I am contacting you on behalf of my client Milton Zale, Trustee of the Milton Zale Trust dated December 18, 1980 (the "Zale Trust") and in connection with that certain Settlement Agreement dated June 30, 2009 by and among the Zale Trust, Colleen Grosz, Timothy C. Rodell, Marjorie Rodell (the "Settlement Agreement"). This letter is a follow up to my previous letters dated August 1, 2011 and September 14, 2011. Pursuant to Section 8.b and Section 6.c.ii of the Settlement Agreement, with this letter, the Zale Trust encloses one compact disc which contains forty-five pages of materials which collectively comprise the building permit set of plans for the Zale Trust's intended design for the construction of a new one story residence on the "Zale Property" as defined in the Settlement Agreement and pursuant to the provisions of the Deed recorded in Book 275 at Page 113, Pitkin County, Colorado, including the construction of a"New Retaining Wall"as defined in Section 6.c of the Settlement Agreement. If you have questions or comments, please direct them to me, and I will facilitate providing any additional relevant information. LITIGATIONl3 5 62435.1 Jennifer Phelan From: Jennifer Phelan Sent: Monday, August 06, 2012 4:57 PM To: 'mrodell @comcast.net'; 'cg @premierivest.net' Subject: Notification of administrative determination, 190 Park Ave. Attachments: approval.pdf Dear Ms. Rodell and Ms. Grosz: The intent of this email is to apprise both of you of the recent administrative determination that was granted with regard to the Zale property(190 Park Ave.).The city requires pre-development grade (natural topography) be submitted with a building permit application. In cases, such as the Zales, where the grade has been affected by development activity an estimation may be permitted. Attached is the determination that was granted. As a neighbor and party of interest, staff wanted to inform you both of the decision. Any appeal of the decision should be submitted within 14 days of this email. If you have any questions with regard to the determination, please feel free to contact me. Kind regards, Jennifer Jennifer Phelan, AICP Deputy Planning Director Community Development Department City of Aspen 130 S. Galena St. Aspen, CO 81611 970-429-2759 www.aspenpitkin.com 1 NOTICE OF APPROVAL ADMINISTRATIVE DETERMINATION OF THE COMMUNITY DEVELOPMENT DIRECTOR ACCEPTING AN ESTIMATION OF PRE- DEVELOPMENT TOPOGRAGHY FOR 190 PARK AVENUE Parcel ID No. 273718107009 APPLICANT: Milton Zale Trust REPRESENTATIVE: Gilbert Sanchez SUBJECT & SITE OF APPROVAL: The Cominunity Development Director is charged with accepting "an estimation of pre-development topography" in cases where a property's natural grade "has been affected by prior development activity," pursuant to Section 26.575.020, Calculations and measurenzen.ts, 190 Park Avenue previously contained a single-family residence that has been demolished and most of the lot is in some state of excavation. SUMMARY: As mentioned previously, the lot is currently, in an excavated state (Figure A). Neighboring properties contain steep grades and varying amounts of retaining walls. Applicant's representative has met with engineering and community development staff on site to discuss an approach for determining pre-development topography. The city's development engineer reviewed the geology of the neighborhood to assist in evaluating the neighborhood's topography, Additionally it was requested by the development engineer that certain spot elevations be taken and certain site sections be developed as part of the interpolation. Figure A Aerial of site w 2 t 1t 3 r ti Pave Iof 3 I' Su�'��VISICN I. � I RECEPTION NO. 1U5731 wc`MI w . f { I } 1v1�v �� sit enth rk l l$ e1 8 1 1 1 \ 1 1 1 A !r �\ \�\\\ \, 1 \ 11 I I 1 } } } ac 71 } x 1 II ! I I t 1 l\ \\ f SO.Fr, \ At LS I }� 11T►, 111 1 } I ! ! I � 1; r° 9CT RASnC 5 T- ilt/ FMND I LA SIM MET T w maw = "�Fi �I �•\ R8'BttQ�r GtApty m � 3 AFFIDAVIT OF PUBLIC NOTICE REQUIRED BY SECTION 26.304.070 AND CHAPTER 26.306 ASPEN LAND USE CODE ADDRESS OF PROPERTY: Aspen, CO STATE OF COLORADO ) ss. County of Pitkin ) 1, (name, please print) being or representirk an Applicant to the City of Aspen, Colorado, hereby personally certify that I have complied with the public notice requirements of Section 26.304.060 (E) or Section 26.306.010 (E) of the Aspen Land Use Code in the following manner: (Publication of notice: By the publication in the legal notice section of an official paper or a paper of general circulation in the City of Aspen at least fourteen (14) days after final approval of a site specific development plan. A copy of the publication is attached hereto. Publication of notice: By the publication in the legal notice section of an official Paper or a paper of general circulation in the City of Aspen no later than fifteen (15) days after an Interpretation has been rendered. A copy of the publication is attached hereto. Signatur The foregoing "Affidavit of Notice"was acknowledged before me this day of �,1,rscf" , 201L, by a-1, aUR� ITNESS MY HAND AND OFFICIAL SEAL commission expires: 1� ^ PUBLIC NOTICE 0 Of Administrative Determination ��'•..,,,,« ,.••'��r An administrative determination with regard to an C esif ration of pre-development topography for the �:,q TE QF lot known as 190 Park Avenue has been approved �'�^ ary PUbhc by the Community Development Director on July 31,2012,as permitted by Section 26.575.020,Cal- culations and Measurements,of the City of Aspen Land Use Code and is available for public inspec- tion in the Community Development Department. S/City of Aspen ATTACHMENTS: he t n i Published ASpen Times Weekly on August 9, 2012 [e the COPY OF THE PUBLICATION Jennifer Phelan From: Josh Rice Sent: Wednesday, August 15, 2012 10:24 AM To: Jennifer Phelan Subject: 190 Park Historical Grade Interpolation Jennifer, I have reviewed the historic grade interpolation proposed by Studio B Architects for 190 Park and I believe the interpolation is reasonable. Prior to visiting the site I reviewed geologic maps and historical photographs to determine the general topography of the area during the early mining days. Based on the geologic map and photographs, it appears that the entire area between Midland Avenue and the Roaring Fork River was gently sloping alluvium. There may have been a slight increase in slope between Midland and Park Avenues as these two streets were likely built on two different alluvial benches. During the construction of the railroad and the ensuing construction of housing, it is reasonable to assume that the area between Midland and Park underwent cut and fill. Soil borings were presented by Studio B which provide evidence of fill on an adjacent property near Midland Avenue. The historic grade interpolation proposed by Studio B Architects generally follows a gentle slope between two benches. The proposed historic grade interpolation removes a high point, located immediately east of the property, because it was assumed to be fill and not natural historic grade. The historic grade interpolation is reasonable based on the information reviewed. Sincerely, Josh Rice, P.E. Development Engineer 130 S. Galena St. Aspen, CO 81611 (970)429-2750 We are interested in your opinion. Please fill out the survey below and tell us how we are doing: http://www.surveymonkey.com/s/2012Eng5vcs "The mission of the Engineering Department is to enrich Aspen's distinctive character so that it remains one of the world's premier mountain communities by protecting the natural environment, improving water quality, enhancing the pedestrian experience and minimizing construction impacts for the enjoyment of residents and guests alike." 1 NOTICE OF APPROVAL ADMINISTRATIVE DETERMINATION OF THE COMMUNITY DEVELOPMENT DIRECTOR ACCEPTING AN ESTIMATION OF PRE- DEVELOPMENT TOPOGRAGHY FOR 190 PARK AVENUE Parcel ID No. 273718107009 APPLICANT: Milton Zale Trust REPRESENTATIVE: Gilbert Sanchez SUBJECT & SITE OF APPROVAL: The Community Development Director is charged with accepting "an estimation of pre-development topography" in cases where a property's natural grade "has been affected by prior development activity," pursuant to Section 26.575.020, Calculations and measurements. 190 Park Avenue previously contained a single-family residence that has been demolished and most of the lot is in some state of excavation. SUMMARY: As mentioned previously, the lot is currently in an excavated state (Figure A). Neighboring properties contain steep grades and varying amounts of retaining walls. Applicant's representative has met with engineering and community development staff on site to discuss an approach for determining pre-development topography. The city's development engineer reviewed the geology of the neighborhood to assist in evaluating the neighborhood's topography. Additionally it was requested by the development engineer that certain spot elevations be taken and certain site sections be developed as part of the interpolation. Figure A: Aerial of site � 3xkb?y R A " eye K 6 Page lof 3 STAFF EVALUATION: Pursuant to section 26.575.020, Calculations and measurements, of the City of Aspen Land Use Code, "the Community Development Director may accept an estimation of pre- development topography." In addition to providing requested spot elevations and site sections (Exhibit B), Applicant's representative provided a subsoil study and improvement survey for 131 Midland Ave. (a neighboring lot) to assist in understanding existing slopes and historical fill in the neighborhood (Exhibit Q. The resulting interpolation has been reviewed by the development engineer, based on the requested information, and is determined to be a reasonable estimate of pre-development grade. DECISION: In Accordance with the procedures, standards and limitations of Title 26, this Administrative Determination acknowledges and accepts the estimated pre-development topography certified by professional land surveyor Robert Hutton dated, July 10, 2012 (Exhibit A). This estimated topography shall be used as the basis for development allowances for this property. APPROVED BY: *Bendon Date Community Development Director Attachments: Exhibit A— Interpolated grade plan Exhibit B— Spot elevations and sections Exhibit C— 131 Midland survey and soils report Page 2of 3 Fee Waiver Request For o ocl'4 . 2b(-2— , first-� THE CITY aF As�i City of Aspen Community Development Department This form should be completed and submitted to the Community Development Director for review. You will be notified when a decision has been made to waive or not to waive the fees regarded in this request form. For what fees are you requesting waiver? ❑ BUILDING ❑ PLANNING Applicant Name: i ` M 1 2�ntact Ph.# q ZO—9Lc -?-T Mailing address: 5al elo S o �-1- E-mail address: Project name & address: L q,0 PICA� A-V—Q - Fee Breakdown: MH ' d'." :Ms,. ✓O Fee Description Original Fee Requested Fee Description Original Fee Requested Amount Waiver Amount Waiver Energy Code Fee REMP Fee Excavation Foundation Fee Zoning Review Fee Inspection Fee Planning Application Fee Permit Fee HPC Application Fee Plan Check Other: TOTAL OF FEE WAIVER REQUEST$ 3 f S D U Reason for Waiver: eneral Fund Department Waived or decreased by City Council (specify ordinance or other decision document) ❑ Other—Please explain: Applicant Signature Date For office use only: Type of fees waived: Total fees waived: $ 31'E_ Q o )<1"PROVED ❑ DISAPPROVED r 4/0 Z Co ity Development Director bate CITY OF ASPEN COMMUNITY DEVELOPMENT DEPARTMENT FEE WAIVER POLICY PURPOSE Fee waivers to eligible individuals and organizations submitting for building permit or land use application may be considered upon filing a fee waiver request form to the Community Development Department. Approval of fee waiver requests may be made by the Community Development Director, according to the adopted fee policy of the City of Aspen. Costs for all building permit and land use applications, other than those waived by the Community Development Director, shall be paid as specified by the fee policy; prior to the issuance of building permits and at the time of submittal of land use applications. PROCESS Fees administered by the Community Development Department can only be waived by submitting a completed fee waiver form to the Community Development Director. The request shall contain a description of the project along with a statement expressing eligibility for fee waiver. The Community Development Director will review the request and give approval or disapproval in accordance with provisions set forth in this policy. The Community Development Director does not have the ability to waive fees administered by other City Departments or other organizations. All organizations and individuals seeking fee waiver MUST submit their written request to the City of Aspen Community Development Director prior to submitting the building permit or land use application. The approved fee waiver must then be presented at the time the building permit or land use application is submitted to the building or planning departments. ELIGIBILITY CRITERIA General Fund Departments do not pay fees to the Community Development Department for building permits or planning applications, with the exception of Capital Projects. The fees waived for these projects will be tracked by the Community Development Department (journal entries are therefore unnecessary). In effort to keep paperwork and applications consistent, General Fund Departments shall still be required to submit the approved fee waiver with all applications for building and planning applications. General Fund Departments include: Non-Departmental 001.00 Streets Department 001.41 City Council 001.03 Parks Department 001.55 City Manager 001.05 GIS Department 001.60 Personnel 001.06 IT Department 001.61 City Clerk 001.07 Special Events 001.70 City Attorney 001.09 Recreation Activities 001.71 Risk Management 001.10 Aspen Recreation Center(ARC) 001.72 City Finance Department 001.11 Ice Garden Operations 001.74 Community Development 001.13 Cons.Trust FD/Lottery 001.75 Engineering Department 001.15 *Capital Projects 001.90 Building Department 001.21 Asset Management Plan (AMP) 001.91 Environmental Health 001.25 *Tabor Capital Projects 001.94 Police Department 001.31 Outgoing Transfers 001.95 Records 001.33 Communications 001.39 NOTE*Capital Projects are not exempt from fees I= S eR Interpreted Existing Retaining Wall & Natural Grade Assumed Fill of Adjacent Parcel ---- _ midland 7957.4 park avenue 79 41.1 . c c a� a� E E > > 0 ! > > v v c v v 0 0 0 0 a w a) Q u 0 U) 0 0 3 3 3 3 a0i 3 0 SECTION 1 : INTERPRETED NATURAL. GRADE SCALE : 1 /8 " This diagram uses spot elevations provided by Robert C . Hutton dated June 2012 . 1 I _OT 6 3 PROMONTORY + m y SUBDIVISION RECEP-ION NO. 10573' ' I I LAKEVIEW TOWN-10USE CCNDOVINIUMS c P-AT DOCK 33, PAGE 93 iV01 lIA4•fNM //> \\� �\\\\\ 1\ 1 ! I 1 II \I 1\ j� ^� i7riM�r_il»�rt►Oe» \ 1` \ \ \ cm \�1♦\\\ \ \\ \ \ \ \ 1 \t\\\\ c\\\ 1111 11 ; 11 tl \ ` \ N ,( I `��` 11111 jIl 1 1 / 1 SI4'02'16'E !f •111111111110 l l t 1 I i i j j I 21.13' 111111111110 u RMIe J 111 I I 1 1 I I t t I � 4� �e 11 lit, u O p hl ! 1 1/ 1 1 1 1 1 t I M f O cc BURRES PARCFI FIRST AMENDM=NT TO THE HOBCOOD—BURRFS CL SU3D VISION EXCEPTION PLAT >` PLAT BOOK /9, PAGE 11 r / i __net and—'— R : I `°e�°`a` 114 �► � . . pp bek Ls ---- — \ / UNIT 1 / sAsdl ADAIR DUPL=X c CONDOMIN PLAT BOO' U 5,7, AGE. 49 / j CL SURVEYOR'S CERTIFICATE: o I HEREBY CERTIFY THAT THE CONTOUR UNES SHO* HEREON *ERE PREPARED BY STUDIO B ARCHITECTS BASED ON ACTUAL FIELD 11IEASUREIIIENTS TAKEN BY IJE. BY SURVEY INSTRUMENT ON THE GROUND. IN THE SURROUNDING cm NEIGHBORHOOD JUNE 12. 2012. THAT THE RESULTING CONTOUR COMPILATION APPEARS CORRECT TO THE BEST OF MY ABILITY r AND MAY BE ACCEPTED AS A REASONABLE INTERPRETATION OF NATURAL GRADE AS DEFINED BY THE CITY OF ASPEN. DATED. BY: ROBERT C.C. HUTTON. PLS 124312 I Cn CO Cn C4 C/) W ca T C T Edge of W o �••� CD M 1 Pavement d o .� M 7C Edge of O d Pavement C O Z � Edge of CO Pavement O C CD West O Property Line CD West 'O Property Line O West West Setback p� Property Line O O O O d1 C O c •c �Q N � O N CD East Setback N - East Property Line East Property Line CD N pp GOFV*l Hcp�>>o';;i-['awlak Cwcirechnir'I, nc. �020 C(mim Ro,id 154 tech C1lemt"xxl 5J'rin C<�lnrx3n X1601 Phone: 970-945-79," HEPWORTH-PAWLAK GEOTECHNICAL kix:970-945-8454 email: hhgrnC�h}� eotecl .cuu SUBSOIL STUDY FOR FOUNDATION DESIGN PROPOSEDRESIDENCE 131 MIDLAND AVENUE ASPEN, COLORADO JOB NO. 110 398A DECEMBER 10, 2010 PREPARED FOR: BRIAN AND JENNIFER HERMELIN c/o STUDIO B ARCHITECTS ATTN: JOSEPH SPEARS 501 RIO GRANDE PLACE, SUITE 104 ASPEN, COLORADO 81611 Parker 303-841-7119 • Colorado Springs 719-633-5562 0 Silverthorne 970-468-1989 PURPOSE AND SCOPE OF STUDY This report resents the results of a p p subsoil study for a proposed residence to be located at 131 Midland Avenue, Aspen, Colorado. The project site is shown on Figure 1. The purpose of the study was to develop recommendations for the foundation design. The study was conducted in accordance with our proposal for geotechnical engineering services to Brian and Jennifer Hermelin dated November 11, 2010. An exploratory boring was drilled to obtain information on the subsurface conditions. Samples of the subsoils obtained during the field exploration were tested in the laboratory to determine their classification 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 subsurface conditions encountered. PROPOSED CONSTRUCTION The proposed residence will be a two story structure with an attached garage above a full basement. Basement and garage floors will be slab-on-grade. Grading for the structure is assumed to be relatively minor with cut depths up to about 10 feet. We assume relatively light foundation loadings, typical of the proposed type of construction. The existing house will be razed prior to new construction. 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. 1 SITE CONDITIONS lThe property is occupied with a single family home constructed in 1959. The existing residence is a wood frame split level with an attached garage. Garage floor is slab-on- Job No. 110 398A G9 tech 4 - 2 - grade. The property is landscaped with lawn, brush and evergreen trees. There was about 8 inches of snow cover at the time of our exploration. The ground surface is relatively flat in the front along Midland Avenue and steepens behind the house. MINE SUBSIDENCE Portions of the Aspen area are underlain by mine workings. The workings are primarily underground tunnels between Aspen and Smuggler Mountains southeast and east of the downtown area. The works consist of numerous tunnels beginning a few hundred feet below the ground surface becoming shallower to the south. Under certain conditions these workings may collapse and cause surface subsidence. Glory Hole Park, located about 1500 feet southwest of the project, is the site is of a surface depression caused by tthe collapse of one or more tunnels. The subject site appears to be about 1000 feet east of the main tunnel works. Our boring was relatively shallow and for foundation design only, however, no indications of subsurface voids were found at the subject site. We believe the risk of subsidence due to the collapse of underground mine works throughout the service life of the proposed development to be low. If further evaluation of the mine works subsidence potential is desired, we should be contacted. FIELD EXPLORATION The field exploration for the project was conducted on November 30, 2010. One exploratory boring was drilled at the location shown on Figure 1 to evaluate the subsurface conditions. The boring was advanced with 4 inch diameter continuous flight augers powered by a truck-mounted CME-45B drill rig. The boring was logged by a representative of Hepworth-Pawlak Geotechnical, Inc. Samples of the subsoils were taken with a 1% inch I.D. spoon sampler. The sampler was driven.into the subsoils at various depths with blows from a 140 pound hammer falling 30 Job No. 110 398A G95teCh I - 3 - 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 Log of Exploratory Boring, Figure 2. The samples were returned to our laboratory for review by the project engineer and testing. SUBSURFACE CONDITIONS A graphic log of the subsurface conditions encountered at the site is shown on Figure 2. The subsoils consist of about 2 feet of loose silty sand and gravel fill overlying silty sandy ' gravel with cobbles and boulders down to the depth drilled of 121/ feet. Drilling in the dense granular soils with auger equipment was difficult due to the cobbles and boulders and drilling refusal was encountered in the deposit. Laboratory testing performed on samples obtained from the boring included natural moisture content and gradation analyses. Results of gradation analyses performed on a small diameter drive sample(minus 1%2 inch fraction) of the coarse granular subsoils are shown on Figure 4. No free water was encountered in the boring at the time of drilling and the subsoils were slightly moist to moist. The boring was backfilled following drilling. FOUNDATION BEARING CONDITIONS The natural granular soils are adequate for support of spread footing foundations. Existing fill from site grading and foundation wall backfill should be removed from beneath proposed footings. The basement excavation should penetrate fill from previous site development. The City of Aspen requires an engineered excavation stabilization plan if proposed foundations are within 15 feet of a neighboring structure or public travel way. The plan is Job No. 110 398A Gg&ech - 4 - ' not required if excavations are less than 5 feet below existing grades or further than 15 feet from travel ways and less than 15 feet deep. Slope bracing (if needed) through use of a variety of systems such as grouting, micro pile and soils nails should be feasible at the site. A shoring contractor should provide design drawings to support the proposed rexcavation slopes. Other City requirements may also be applicable. ' DESIGN RECOMMENDATIONS t FOUNDATIONS rConsidering the subsurface conditions encountered in the exploratory boring and the nature of the proposed construction, we recommend the building be founded with spread footings bearing on the natural granular soils. The design and construction criteria presented below should be observed for a spread footing foundation system. 1) Footings placed on the undisturbed natural granular soils should be designed for an allowable bearing pressure of 4,000 psf. Based on experience, we expect settlement of footings designed and constructed as discussed in this section will be about 1 inch or less. 2) The footings should have a minimum width of 16 inches for continuous walls and 2 feet for isolated pads. 3) 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 42 inches below exterior grade is typically used in this area. 4) Continuous foundation walls should be reinforced top and bottom to span local anomalies such as by assuming an unsupported length of at least 10 feet. Foundation walls acting as retaining structures should also be designed to resist lateral earth pressures as discussed in the "Foundation l and Retaining Walls section of this report. f Job No. 110 398A Gg&ec 1 BORING 1 ELEV.= 7951.5' 7955 7955 7950 -� 7950 40/12 �i 40/4,10/0 CD L 7945 q: WC=5.0 u- •a. +4=31 7945 C:O '• -200=17 0 W W 70/6 7940 Q• 7940 E7935 7935 NOTE: Ex lanation of symbols is shown on Figure 3. P Y 9 110 398A @Ch LOG OF EXPLORATORY BORING Figure 2 H worth—Powlak Geotechnical LEGEND: ® FILL; about 4 inches of screened gravel overlying silty sand and gravel, loose, moist, black and brown. a . GRAVEL(GM);with cobbles and boulders, sandy, silty, dense, slightly moist, light brown, subrounded rocks. Drive sample; standard penetration test (SPT), 13/8 inch 1.D. split spoon sample,ASTM-1586. 40/12 Drive sample blow count; indicates that 40 blows of a 140 pound hammer falling 30 inches were required to drive the SPT sampler 12 inches. Disturbed bulk sample. TPractical drilling refusal. NOTES: 1. The exploratory boring was drilled on November 30, 2010 with a 4-inch diameter continuous flight power auger. 2. Location of the exploratory boring was measured approximately by pacing from features shown on the site plan provided. 3. The exploratory boring elevation was obtained by interpolation between contours on the site plan provided. 4. The exploratory boring location and elevation should be considered accurate only to the degree implied by the method used. 5. The lines between materials shown on the exploratory boring log represent the approximate boundaries between material types and transitions may be gradual. 6. No free water was encountered in the boring at the time of drilling.The boring was backfilled following drilling. Fluctuation in water level may occur with time. 7. Laboratory Testing Results: WC = Water Content (%) +4 = Percent retained on the No. 4 sieve -200 = Percent passing No. 200 sieve r 110 398A �' �"1 LEGEND AND NOTES Figure 3 HEPWORTH-PAWLAK GEOTECHHICAL CITY OF ASPEN IMPROVEMENT SURVEY A PART OF LOT 3, BLOCK 7, RIVERSIDE ADDITION LOT 7, BLOCK 1, PROMONTORY SUBDIVISION LOT 8, BLOCK 1, PROMONTORY SUBDIVISION PITKIN COUNTY, COLORADO D 5 W 20 I° = Io' % CONCRETE NOTES HATCHING DENOTES DRIVEWAY AREA OF DRIVEWAY 1)LEGAL DESCRIPTION: / ENCROACHMENT SAS, PARCEL A: LOT 9 DB. 06'p0.E 0.8' LOT 3.BLOCK 7,RIVERSIDE ADDITION,EXCEPTING FROM SAID LOT 3,THE SOUTHERLY 15 PROMONTORY SUB./ 16'00' SET 3.0' FEET. / LOT 7 WT.COR. PARCEL B: PROMONTORY SUB. ` '' " ILi A PORTION OF LOT 7,BLOCK 1 PROMONTORY SUBDIVISION,ACCORDING TO THE PLAT % r0- F RECORDED AS DOCUMENT N0.105731 IN DITCH BOOK 2A AT PAGE 240 OF THE RECORDS DL7' 09 —,DLB'OL1 DL8' L1 P10- FOR PITKIN COUNTY,MORE PARTICULARLY DESCRIBED AS FOLLOWS: BURRES PARCEL E. /1,8 \ DL7' BEGINNING AT A POINT WHENCE THE NORTHWEST CORNER OF LOT 8 SAID PROMONTORY SUBDIVISION BEARS N75'06'W 3.61 FEET; .575 ^yb THENCE S75'06'E 46 FEET TO THE NORTHEAST CORNER OF SAID LOT 8: t'y Pt 2' THENCE N17'45'E 40 FEET; DLB' / ,3 THENCE N75'06'W 16 FEET; O THENCE IN A SOUTHERLY AND WESTERLY COURSE ON A STRAIGHT LINE TO THE POINT OF BEGINNING. PARCEL W o O S75 p6p0"f �� ° AAPORTION OF LOT B.BLOCK 1 PROMONTORY SUBDIVISION,WHICH SUBDIVISION PLAT IS RECORDED AS DOCUMENT NO.105731 IN DITCH BOOK 2A AT PAGE 240 OF THE RECORDS 077 C 6q �2, 2i FOR PITKIN COUNTY,MORE PARTICULARLY DESCRIBED AS FOLLOWS: LZT 3.BLK]R6 - a, Tg6 / BEGINNING AT A POINT WHENCE THE NORTHEAST CORNER OF SAID LOT 8 BEARS N17'45'E RIVERSIDE ADD % .: 20.92 FEET; PARCEL A' �'� // P19' THENCE N17'45'E 20.92 FEET TO THE NORTHEAST CORNER OF LOT 8,WHICH IS ALSO THE 6•' DL9' / SOUTHEAST CORNER OF LOT 7,SAID BLOCK 1; //� SLOT] THENCE N75'06'W 49.61 FEET TO THE NORTHWEST CORNER OF SAID LOT 8; 0 PB' 1 +/ / LOj g�,` ( + ` I THENCE S24-06'W TO A POINT 15 FEET NORTHERLY OF THE SOUTHEAST CORNER OF LOT 3, / / _ BLOCK 7,RIVERSIDE ADDMON; DL8' +Y 0 ` \ THENCE S75'O6'E TO THE POINT OF INTERSECTION WITH THE EASTERLY LINE OF SAID LOT B; a THENCE N24'37'E TO THE POINT OF BEGINNING. HOBGOOD PARCEL p61 / d o O9 2)BASIS OF BEARING: DL7' A ;/ / / PARCEL'C' 2 STORY �d+ 3 NEARING OF 524'3ND A BETWEEN A FOUND REBAR AND 6 A ONG 2376 AT THE S.E. y*y j%* o PROPERTY CORNER AND A FOUND REBAR AND YPC DI 2376 ALONG THE EASTERLY / � SINGLE FAMILY � /� o A 0S a PROPERTY LINE OF LOT 2 MARGARET MEADOWS SUBDIVISION. RESIDENCE IN THIS SURVEY DOES NOT CONSTITUTE A TITLE SEARCH BY THIS SURVEYOR. TITLE AY FF=7952.34 7 y q. INFORMATION REUED UPON FOR THE PREPARATION OF THIS SURVEY FURNISHED BY DLB i/+ y 25 Q s STEWART TITLE,ORDER NO.42962.DATED 10/14/2004. P14 1J +�*// / a.ry2o / GRAVEL 4)ELEVATIONS BASED UPON GPS MONUMENT NO.1. BENCHMARK=7954.37'AT S.E. DL,1y3�y�,1 % ^, DRIVEWAY / c PROPERTY CORNER. CONTOUR INTERVAL IS 1(ONE)FOOT. 5)NATURAL HAZARDS: Q ++I+ +7}I 7, A: ACCORDING TO FIRM MAP 08097CO203,PANEL 203 OF 325,DATED JUNE 4,1987, JUL 1 1 2012 AL \ *+I*� \ 59 ti i SAID LOT DI CONSIDERED TO BE IN ZONE DRAINAGE AND OUTSIDE THE SOD YEAR FLOOD PLAIN. B: ACCORDING NS THE 2001 SURFACE E X AND MASTER PLAN,SAID LOT L CONSIDERED + Jy +l/ ^m TO BE OUTSIDE THE MUDFLOW HAZARD AREA \ �7g5� 0 p X55 / , C: ACCORDING TO THE 2009 PERCENT SLOPE MAP,SAID LOT IS SHOWN TO HAVE SLOPES CITY.. � $�$ n \�� k LESS THAN 10R _I ! X O F ASPEN E � \ \f1✓ \\ �R�c �/ 6)CITY OF ASPEN BUILDING RESTRICTIONS: ♦6 i f -�Y' /� Iy�q/� Y z � \ WA SETBACK RESTRICTIONS:R-6 ZONE DISTRICT REGULATIONS. "0 $iR.;lI I+Er 'l�tdp.t y N M5 REBAR I +4/\� c� DECK \\\ / SIDE YARDS:5.0' `f11]I(� 6 ' 61 G.s i..4,.0.a..Y 1 NO CAP ^ REAR YARD:10.0' /+` *�+ 7'U'1'AL.4kF::1 21 S(3.FT.- ROCK p LEGEND FRONT YARD:10.0'RES.30.0' * / ..�j a (9) INDICATES FOUND MONUMENT AS DESCRIBED. JG�V- wry° /s .pe' El INDICATES SET MONUMENT LS$37972 YPC / 15.0' % Opp Vq/�Y\ ,per/'`' 086" �2 YPC YELLOW PLASTIC CAP LSp 2376_% / SHADOWMTN— \ L 'O.a POWER POLE D e—a FENCE LINE C� \ 16 a 66 ' LSg YPC 2376 LIGHT POLE ---O'7L— OVERHEAD UTILITY LINE / u ENCHMARK 583'11'21' W / \ 954.37' W ® ELECTRIC TRANSFORMER EM ELECTRIC METER 1362.36 Q / ~\ Q TELEPHONE RISER Y"1 C7 ASPEN TREE CITY OF ASPEN J \ CABLE RISER GPS MONUMENT / \ E31 PINE TREE SURVEYORS CERTIFICATE NO.1 O.H. OVERHANG TYPICAL D9 (DECIDUOUS 9 INCH DIAMETER TRUNK) 0" S Wy I,MICHAEL P.LAFFERTV,HEREBY CERTIFY THAT THIS MAP ACCURATELY DEPICTS AN � WATER VALVE P6'(PINE 6 INCH DIAMETER TRUNK) IMPROVEMENT SURVEY PLAT PERFORMED UNDER MY SUPERVISION ON 10/2008 AND s p DI-8-(DRIP LINE 8 FEET) REVISED 7/2010 OF THE ABOVE DESCRIBED PARCEL OF LAND. THE LOCATION AND VICINITY MAP I LOT 2 " ;,�J, DIMENSIONS OF ALL IMPROVEMENTS,EASEMENTS,RIGHTS-OF-WAY IN EVIDENCE OR MARGARET MEADOW SUB. 3 e 9. KNOWN TO ME AND ENCROACHMENTS BY OR ON THESE PREMISES ARE ACCURATELY DO SHOWN. ERROR OF CLOSURE IS LESS THAN 1/15,000. h h ®cm n ® ti� h� SLOPE ANALYSIS a'd CITY JF ASPEN _.00 L/ DATE: GPS MONUMENT O"_ EE2m 11® IJO.18 -SLOPES 20%<30% (97 SO.FT.) MICHAEL P.LAFFERTV PLS.R 37 37972 Z d 2-7-11 P db B ^�lr F -SLOPES 304.AND OVER (427 SO.FT.) 8 B J o 8 8 YPC ® LS/2376 Rooky Mountain Sunreylnp DATE SURVEYED: 10/2008 REVISED: 7/2010. 2/2011 FILE NO: O9546 0 CLIENT HERNIELIN ® � 4fn mf+I.PBno.a c.rboMM. i ® ® Pxen.0-31- n y -nin N n ors N -n kf.•n ""Ry+r lu%Oi6]b8n flh uE:m ant drfic�in Nis sunry h rnnm.,u.J nxm �nm1N<a.��nrN«.,�r�au,n shn,�n n.,,..� B a r c h i t e c t s July 10, 2012 RECEIVED Jennifer Phelan JUL 11 2012 Community Development Deputy Director CITY OF ASPEN City of Aspen COWUNP DEVELOPEW1 130 S. Galena Street Aspen, CO 81611 Re: Determination of Natural Grade for 190 Park Avenue Dear Jennifer: I am writing to request your determination of natural grade for 190 Park Avenue as permitted by the City of Aspen Land Use Code Section 26.575.010 which states, "In instances where the natural grade of a property has been affected by prior development activity, the Community Development Director may accept an estimation of pre- development topography prepared by a registered land surveyor or civil engineer." On May 16, 2012, you informed me that the City of Aspen would not accept our completed Improvement Survey illustrating the current disturbed conditions of the site. A new document representing an estimation of pre- development topography would be required. Our process to prepare this estimation occurred as follows: 1. An onsite meeting and visual observation of the site and its context with you and Josh Rice of the Engineering Department occurred on May 31, 2012. 2. Josh provided a geologic map of the area to inform our on-site discussion. 3. 1 provided existing surveys of the subject property and the neighboring property at 131 Midland Avenue for discussion. In addition, I discussed completed soils reports for 190 Park Avenue and 131 Midland Avenue that revealed the subsoil conditions. 4. Josh requested new spot elevations at identified locations and site sections be prepared for his evaluation. 5. On June 21, 2012, a meeting with you and Josh Rice occurred at City Hall to review&discuss the surveyor's information. This included spot elevations and site sections. 6. At the June 21st meeting, I presented a preliminary sketch of the estimated natural grade developed from the process &materials identified above. Josh agreed that this was a reasonable interpretation, and I was instructed to prepare a final document for submittal with this request. This letter is accompanied by the following items for your reference: 24 x 36 Items- 1. 190 Park Avenue Interpretation of Natural Grade dated July 2, 2012/Certified on July 10, 2012 by Robert C. Hutton 2. Improvement&Topographic Survey for 190 Park Avenue dated October 4, 2011 by High Country Engineering. 3. 190 Park Avenue Spot Elevation Survey dated June 2012 by Robert C. Hutton 11 x 17 Items- 1. Improvement Survey for 131 Midland Avenue dated February 7, 2011 by Rocky Mountain Surveying 2. Section 1: Interpreted Natural Grade (References 24 x 36 Item 3 above) 3. 190 Park Avenue Interpretation of Natural Grade with Section Lines 4. Sections A, B &C (References 11 x 17 Item 3 above) G< Tech HEPWORTH-PAWLAK GEOTECHNICAL October 18, 2011 Milt Zale c/o Studio B Architects Attn: Gilbert Sanchez 501 Rio Grande Place, Suite 104 Aspen, Colorado 81611 ,gilbert&studiobarchitects.net Job No. 106 0243 Subject: Geotechnical Review, Proposed Residence, 190 Park Avenue, Aspen, Colorado Gentlemen: As requested, we have performed a geotechnical review of the existing conditions with respect to the current proposed construction at the subject site. This report summarizes our findings and recommendations. The review was performed as part of our agreement for professional engineering services to Milt Zale, dated September 19, 2011. Background Information: Hepworth-Pawlak Geotechnical previously performed a geotechnical review of the site for a previous proposed residence and submitted our findings in a report dated March 31, 2006 under the above job number. The excavation for the residence was begun and shoring installed when the project stopped. We recently observed the site conditions during our September 12, 2011 site. Proposed Construction: The proposed residence will be a one story structure over a walkout basement level daylighting to the west. The lower level will be primarily concrete construction. Ground floors will be slab-on-grade. Cut depths will range up to about 12 feet. Foundation loadings are assumed to be moderate. Site Conditions: The previous residence on the site has been removed. The terrain consists of a relatively flat bench on the adjacent lot to the east with a steep slope down through the subject site and to Park Avenue. Portions of the uphill (eastern) side of the site are shored with a micro-pile wall with a maximum retained height of about 12 to 15 feet. Most of the lot is excavated at one level to about the elevation of Park Avenue. There is a three tier timber wall about 9 feet high retaining the slope above the excavation. The soils exposed in the partial excavation consist of relatively dense, slightly silty sand, gravel and cobbles with scattered boulders to several feet in diameter. No free water was observed in the excavation or from the uphill cut area. Mine Subsidence: Portions of the Aspen area are underlain by mine workings. The workings are primarily underground tunnels between Aspen and Smuggler Mountains Milt Zale October 18, 2011 Page 3 prevent wetting of the lower level. The underdrain system should include at least 4 inches of free draining gravel below the basement floor slab. Structural fill placed within floor slab areas can consist of the on-site sand and gravel soils compacted to at least 95%of standard Proctor density(SPD) at a moisture content near optimum. Backfill placed around the structure should be compacted to at least 90% SPD and the surface graded to prevent ponding within at least 10 feet of the building. We should review the foundation, grading and shoring design prior to construction and perform additional analyses as needed. Limitations: The recommendations submitted in this letter are based on our observation of the site conditions and our experience in the area, and does not include subsurface exploration to evaluate the actual subsurface conditions. The risk of foundation movement may be greater than indicated in this report because of possible variations in the subsurface conditions. It is possible the data obtained by subsurface exploration could change the recommendations contained in this letter. Our services do not include determining the presence, prevention or possibility of mold or other biological contaminants (MOBC) developing in the future. If the client is concerned about MOBC, then a professional in this special field of practice should be consulted. We should observe the foundation excavation at the time of construction. If you have any questions do not hesitate to contact our office. Ca Sincerely, HEPWORTH— PAWLAK GEOTECHNICAL, INC. c r6 k �d Re��i„jJ.fl� A. David A. Young, P.E. afl 32-216 d �. Rev. by: SLP ®0,6`•..10-/Q-(/ &t ,;v DAY/1'Jg cc: Studio NYL Structural Engineers - Julian Lineham (Ilineham('<i,studiom l.coni) Heritage Builders — Ty McSwain (lv(iuherita2ebuildet.sinc.net) Job No. 106 0243 �gtech