HomeMy WebLinkAboutcover letter-061121
190 NORTHSTAR LANE
BOZEMAN, MT 59718
406-581-5730
www.headwatersmt.net
Page 1 of 3
June 11, 2021
City of Bozeman Community Development
20 East Olive Street
Bozeman, MT 59771
Re: Gallatin Park Mixed Use
Site Plan Resubmittal
325 Gallatin Park Drive
Application # 21129
Dear Planner,
Please find attached our resubmittal of a Site Plan for the Gallatin Park Mixed Use Site on Lot 4A of the
Amended Plat of Gallatin Park Subdivision (J-300C). Our responses to the DRC comments dated May 26th are
below.
Our responses to the DRC Review Comments are below:
PLANNING
1. Phasing – The phasing plan has been updated to start front to back to allow open space, connectivity
and bike parking to be constructed with the first phases.
2. Accessory Residential – Sheet G0.1 was added to better describe the residential to commercial
breakdown of each building. Each building has a 51% commercial to 49% residential breakdown.
The total square footage of each was also added to sheet I-1. See also the explanation narrative by
FH Architects.
3. Non-motorized circulation and design – As discussed, we have included a departure request to allow
for no landscaping in front of the garage doors. The landscaping plan was also updated to include
more vegetation in front of the buildings.
4. Open Space – The landscape plan has been updated to show additional screening and Sheet C-2 was
updated to better depict the open space area. Of the 1,750 sf of area shown as residential open
space, the area exceeds 1,400 sf once the screening and utility areas are removed.
5. Parking – Parking in front of the garage doors will be managed by placing “UNIT XX PARKING ONLY”
signs on the garage doors as shown on Sheet C-6. The parking spaces counted on the interior of
building 3 have been removed to avoid confusion. These areas can be utilized for parking if the
tenant should choose but were not counted towards the site total. With those two parking spaces
removed, the site has 40 total parking spaced compared to the calculated 33 required parking
spaces. The on-street parking spaces are shown as 7’x24’ rectangles, between the vision triangles on
Sheet C-2.
6. Parking – The gross area of residential and non-residential is shown in the parking calculation for the
50% reduction claimed. As required by the claimed mixed use reduction, the non-residential portion
of the building must exceed 25%. The non-residential portion of the building is roughly 52%.
ENGINEERING
1. Sheet C-2 has been updated to reference City of Bozeman Mods and Design Standards.
190 Northstar Lane, Bozeman, MT 59718 (406) 581-5730 www.headwatersmt.net Page 2 of 3
2. A new snow storage easement and a separate trash enclosure easement are attached. The
easements are no longer overlapping.
3. We do not plan to do any grading on the HOA property.
Stormwater
In the original submittal, we mistakenly called the existing regional storm pond a retention pond,
when in fact it is a detention pond. This has been updated on the attached storm report.
1. The updated grading plan includes measures to capture for infiltration or treat the first 0.5
inches of rainfall from a 24-hour storm. A Contech CDS stormwater treatment system is
planned to treat the runoff from that storm to remove 80% of the TSS during the ½” 24-hour
storm before it leaves the site. All water from the site will still end up in the existing regional
stormwater pond.
2. The stormwater design report has been updated to show updated calculations for the entire
regional storm pond and prove that the pond is sized to handle the runoff from the Gallatin Park
Subdivision using current City of Bozeman and DEQ standards. The C factor for pre-
development was updated to 0.2 within the calculation. We also installed a groundwater
monitoring well to verify groundwater depth, but since the pond is a detention pond, the outlet
structure sets the level of the groundwater remaining in the pond based on the outlet elevation.
We calculated the existing pond volume based on the elevation of the pond water and
monitoring well on June 3rd. At that time, minimal water was flowing out of the outlet structure.
Water Rights
1. Griffin Nielsen has provided cash in lieu of water rights in an email form and that email is
included. We have reached out to Mr. Nielsen to see if he can provide something more formal,
but have not received a response at time of submittal. His response will be sent to Ross Knapper
once it is received. The total will be paid prior to site plan approval.
Water
1. The existing and proposed curb stop locations have been included on Sheet C-3.
2. Sheet C-3 has been submitted to John Alston and he has verified that he is ok with the proposed
service line size change for building 1B. An email from John is included.
3. John Alston provided the updated water meter size requirements and we have verified that they
all fit within the proposed mechanical rooms. The size requirements were added to sheet C-3.
Wastewater
1. The sewer service crossing has been verified and no conflict exists. Sheet C-3 has been updated
to show the separation.
Conditions of Approval
A new waiver of right to protest is included with this site plan submittal. The waiver will be signed
and filed prior to site plan approval.
SOLID WASTE
1. The trash enclosure detail has been adjusted to remove any roof overhang. See also the explanation
narrative by FH Architects.
2. The trash enclosure detail was updated to correctly show the 10’ clear opening between door jambs.
See also the explanation narrative by FH Architects.
190 Northstar Lane, Bozeman, MT 59718 (406) 581-5730 www.headwatersmt.net Page 3 of 3
3. The trash enclosure detail was updated to show a 180-degree minimum door swing. See also the
explanation narrative by FH Architects.
BUILDING
1. A fire separation page will be included during building permit submittal for review. See also the
explanation narrative by FH Architects.
2. See Sheet G0.1 to address IBC code adherence. See also the explanation narrative by FH Architects.
3. See Sheet G0.1 to address IBC code adherence. See also the explanation narrative by FH Architects.
4. The adherence to ICC will be addressed during building permit submittal for review. See also the
explanation narrative by FH Architects.
PARKS
1. The Parkland Tracking Table and CILP Narrative have been updated to match the Park Department’s
comments.
2. Understood
3. The cash in lieu of parkland approval is included. Cash in lieu fees will be paid prior to site plan
approval.
NORTHWESTERN ENERGY
1. Ok
If you have any questions or comments, please contact me at 581-5730
Sincerely,
__________________
Jeremy May, P.E.
Headwaters Engineering, Inc.
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