HomeMy WebLinkAboutMAPLE HILL, PHASE ONE - PDP - 29-00A - REPORTS - DRAINAGE REPORTAlternative Compliances and Variances
ODP
Letter from TST dated September 19, 2002 concerning the Minor Amendments
to Overall Development Plan (ODP).
Planning
• Alternative Compliance for Solar Access, Orientation, Shading (VF Ripley
Associates)
The Alternative Compliance was submitted to the Current Planning Department
on October 24, 2003. The request was supported by Current planning on an
email dated December 23,2002. See attached copies. Two primary reasons for
not being able to meet the standard are stated in the request letter. Due to the
need to meet these primary requirements on the site layout the 65% solar lot
standard required by the Land Use Code could not be achieved.
Engineering — (As requested on the construction plans)
• A variance to standard 4 (Curves with Small Deflection Angles (100 or less) of
section A (Horizontal Alignment) of Section 7.4.1(Alignment) of the Larimer
County Urban Area Street Standards is requested for the two horizontal center
line curves between stations 16+00 and 24+00 of the proposed alignment of
County Road 11. As described in a letter to Matt Baker dated 10/17/2002, the
existing conditions, existing homes, prohibit a design that meets the minimum
curve lengths. The curves have been designed to be the maximum possible
length while still maintaining the minimum tangent length between them.
• A variance to Standard 12.2.2 of the LCUASS, which states that storm sewers
need a minimum of 2-feet of cover to base coarse. ST-5 and ST-513 at the
intersection of Maple Hill Drive and Thoreau Drive will have stabilization fabric
placed per the City of Fort Collins.
A variance to Section 3.6(H), 1 & 2, of the Land Use Code, and Section 7.4
General Design Elements, Table 7-3, Access Management, which states that
connecting streets to a 2-lane arterial be separated by no less than 460 feet and
no more than 660 feet. The request and areas impacted are further outlined in a
letter to Mike Herzig from Matthew Delich dated March 25, 2003.
Stormwater — (As requested in the Drainage Report for Maple Hill)
• The variance request is in regards to storm sewer pipe slope from the minimum
standard of 0.4%, to a minimum pipe slope of 0.2%. Per our meeting on January
9, 2003 we have approximately 105-feet of 48" x 76" ERCP and 40-feet of 34" X
53" ERCP, Class III, storm sewer pipe located within the ROW that is designed at
a 0.2% slope. In addition, we have 150' of 48" x 76" ERCP, Class III, storm
sewer pipe located outside of the proposed street going into the NE corner of the
detention facility that is designed at a 0.2% slope. Therefore, approximately 295-
feet of storm sewer line ST-5, located on Sheet 67 of the Maple Hill construction
drawings, will be at a 0.2% slope. As stated in our meeting, you felt that due to
the minimal amount of lineal feet of storm sewer and due to elevation site
constraints of the detention pond, you will support this variance request.
MINOR AMENDMENTS
AND
ALTERNATIVE COMPLIANCES
FOR
MAPLE HILL
Submitted to:
CITY OF FORT COLLINS
April 3, 2003