HomeMy WebLinkAboutFile Documents.517 Park Cir.0161.2018 (28).ARBK ' ROARING FORK
p/ ENGINEERING
From: Drew Wharton
Project Engineer
Roaring Fork Engineering
(970)340-4130
dreww@rfeng.biz
To: Justin Foreman
Senior Project Manager
City of Aspen Engineering Department
(970)429-2783
Reviewed by Engineering
08/02/2018 4:41:06 PM
517 Park Circle Variance Request "It sho h be known thatf this review ibilllt not
Q relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen.The review and approval by the City is
Permit Number: 0161.2018 offered only to assist the applicants
understanding of the applicable Engineering
requirements."The issuance of a permit based
17,2018 on construction documents and other data shall
Julynot prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
Justin,
I am requesting a variance for 517 Park Circle regarding the mudflow analysis. The current URMP states
that the site would require a mudflow analysis. As per comment from Justin Forman dated June 6, 2018, a
new Smuggler hunter Mudflow Analysis was conducted and the site is no longer located within the
mudflow zone. This proposed variance is requesting that the project does not follow the current mudlow
analysis requirement, and instead follows the more recent analysis.
Criteria from which the applicant seeks a variance.
As shown on Figure 7.lb—Smuggler Mountain Mudflow Zones in the current URMP (rev 11/2014),the
site is within 200' of a slope greater than 30%. This would require the applicant to submit a 100-year
mudflow event analysis.
From the updated Smuggler Hunter Mudflow Masterplan, dated January 9th, 2015,Figure 3.4,Potential
Geological Hazards,the site under evaluation is no longer in or below a potential unstable slope. This
more recent analysis would exempt this site from a mudflow analysis.
Justification for not complying with the criteria
The updated Smuggler Hunter Mudflow Masterplan is a more recent and accurate analysis of the Neale
Avenue and Oklahoma Flats Basin.A mudflow analysis is not required with the site not located in a
mudflow hazard zone.
Supporting Documentations
Figure 7.Ib—Smuggler Hunter Mudflow Zones,Page 7-7 of the City of Aspen URMP, 11-2014
Figure 3.4—Potential Geological Hazards of the Aspen Smuggler Hunter Mudflow Masterplan
Potential adverse impacts for proposed variance and alternate criteria on downstream water bodies
public and private.
a517 Park Circle Variance Request July 17,2018
Page 2 of 2
Due to the site not being located in a mudflow hazard zone,there would be no adverse effects.
Please call with any questions, I look forward to your response.
Reviewed by Engineering
Drew Wharton 08/02/2018 4:41:17 PM
"It should be known that this review shall not
relieve the applicant of their responsibility to
comply with the requirements of the City of
Aspen.The review and approval by the City is
offered only to assist the applicant's
understanding of the applicable Engineering
requirements."The issuance of a permit based
on construction documents and other data shall
not prevent the City of Aspen from requiring the
correction of errors in the construction
documents and other data.
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