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HomeMy WebLinkAbout2021-03-30_HAVEN SP NARRATIVE RESPONSE 1 March 30, 2021 Jacob Miller City of Bozeman – Planning Department 20 East Olive Street Bozeman, MT 59715 Reference: 20-451 HAVEN Responses for SP1 application Comments Dear Bozeman Staff: Below are the original review comments in their original form and our responses to each comment in red. Planning Division General Notes: 1. This project, due to the multiple phases will require a Master Site Plan. Response: A Master Site Plan has been submitted under Application 21-143. 2. It doesn’t appear that the parking lot is encroaching into the stream setback as indicated in the narrative. Please clarify the need to request a variance. Response: The third paragraph of the Site Utilities and Surface Water section of the submitted narrative describes how construction activities for the proposed security fence will encroach into zone 2 of the watercourse setback. Section 38.400.100.2g does not allow disturbance of soils in any setback zones. Areas disturbed by construction activities will be revegetated to original condition. No fill material will be constructed in the stream setback. 3. A variance will not be required for the sidewalk in the watercourse setback. Public infrastructure can be constructed within a watercourse setback without a variance. Response: We do see that in the code, thank you. 4. The narrative is addressing the original comments from the CONR. Please include responses to the most recent set of comments from Planning. The memo is attached to this for your reference. Response: See the attached 1st SP narrative dated 12/24/2020. Responses to the comments from the CONR are provided in that pdf. 5. Provide details for the emergency lane material that meet the standards as discussed with Scott Mueller. Response: The EVA hatch layer on the C2.0 Site Plan sheet now refers the contractor to Sheet C7.0 – Details for structural sections as discussed with Scott Mueller and the geotechnical engineer. 2 6. Provide details for the temporary sweat lodge. Response: See Sheet L5.00 for sweat lodge details. 7. The planting plan shows the boulevard strip in the cul-de-sac hatched as concrete please correct to show turf. Response: This has been corrected and widened to allow for street trees. 8. Sec. 38.220.080. - Site plan submittal requirements. a. A few of the plan sets are missing title block information such as dates, description and stamps. Please provide complete information for all sheets on resubmittal. Response: This issue has been corrected. b. Please provide dimensions for approach to refuse enclosure and in between the buildings and internal pathways. The required landscaping in between an internal pathway and building is 3’. Response: This issue has been corrected. A 50’ dimension is provided on Sheet C2.0 – Site Plan in front of the trash enclosure to show adequate approach distance. 3-feet of landscaping is provided between internal pathways and the buildings. Dimensions are provided on Sheet C2.0. c. Show the utilities and site vision triangle on the landscaping planting plan. Response: The utilities and site vision triangle have been added. 9. Sec. 38.520.040. - Non-motorized circulation and design. a. The gravel pathway connecting the sidewalk to the internal pathways must be a minimum of 5’ wide concrete per City standards. This is a requirement that cannot be waived because it is essential for safe egress in the case of an emergency. Response: The pathway has been adjusted to show a minimum 5’ wide dimension concrete pathway per City standards. See Sheet C2.0. b. All internal pathways must be a minimum of 5’ wide and concrete. The pathway connecting the sidewalk on the roundabout to the staff entry of Building A must be a minimum of 5’. It appears a couple more pathways may be less than 5’ as well, please provide dimensions. Response: Gravel and concrete pathways throughout the site have been adjusted to show a minimum 5’ wide dimension per City standards. See Sheet C2.0. c. Please provide a pedestrian connection to the trash enclosure. Response: A pedestrian connection to the trash enclosure is now provided. See Sheet C2.0. 3 10. Sec. 38.520.070. - Location and design of service areas and mechanical equipment. a. Provide more screening details for the mechanical equipment. What are the type of ornamental grasses being planted? Response: Screening details for the mechanical equipment include big sagebrush and silver rabbitbrush. Details can be found on Sheet L1.40. b. It doesn’t appear that the service areas adjacent to the buildings are paved. Please provide pavement for convenient service access. Response: Concrete sidewalks are now provided in the service areas. See C2.0. c. What is the decibel output for the condenser units? Due to the residential adjacency, we will require this information. Response: Decibels on condenser units are as follows: · Unit HP-1 = 63.5 dB · Unit HP-A = 58 dB · Unit HP-B = 54 dB · Unit HP-C = 58 dB · Unit HP-D = 54 dB Decibels for each unit are labeled on the exterior elevations as well. d. The trash enclosure must be screened with a minimum of 5’ of landscaping. Response: Appropriate screening is provided for the trash enclosure. Screening details for the trash enclosure can be found on Sheet L1.40. Additional trash enclosure details can also be found on Sheet A9.00. 11. Sec. 38.530.070. - Blank wall treatments. a. It appears there are a few areas on the south, west and north elevation that meet the threshold to require blank wall treatments. Please provide treatments and dimensions showing that the blank wall requirements are being met. Response: Vegetation screening is shown on the exterior elevations on Sheets A2.00, A2.01, A2.02, and A2.03. Planting species are shown and labeled on Sheet L1.40. 12. Sec. 38.550.050. - Mandatory landscaping provisions a. Per our discussion about the parking lot screening requirement that falls within the utility easement; We will still require the screening at a height of 4-6’ per code but recommend that the plantings be shrubs and other less intrusive species that can easily be dug up and replanted. Response: Noted. The planting plan has been adjusted to provide appropriate screening with plantings that can be easily dug up and replanted if necessary. 4 Engineering Division, Karl Johnson, kajohnson@bozeman.net, 406-582-2281 Easement 1. Bozeman Municipal Code (BMC) 38.410.060.B.2. - A ten-foot utility easement (power, gas, communication, etc.) must be provided along the development’s property frontage prior to site plan approval. The applicant may contact the engineering department to receive a copy of the utility easement contract. a. The applicant must provide the easement along the proposed cul-de-sac. Response: A proposed public access easement is provided off the back of sidewalk along the proposed cul-de-sac. An easement is also provided for the water and sewer main extensions into the site, offset 10’ on either side of the water and sewer mains. A 10-foot utility easement is provided off the back of sidewalk along the cul-de-sac and along the northern and eastern property lines. See Sheet C1.1. Sheet C1.1 provided shows all existing and proposed easements including the Temporary Street Easement to be released. Exhibits and descriptions will be created and recorded at the County Clerk and Recorder once the City has approved the proposed easements as requested. Water Rights 1. BMC 38.410.130 - CILWR must be paid prior to site plan approval. Response: CILWR will be paid prior to Site Plan approval. Coordination with Brian Heaston is on-going. Stormwater 1. It appears that the detention facility located at the north end of the minor subdivision has been designed to accommodate runoff from former Ravalli ROW which extended beyond the cul-de-sac. The engineer must provide calculations that verify the facility meets the current standard, the applicant must update the maintenance agreement to include the common facility, if this option is selected. Please refer to page 6 of the following report: http://weblink.bozeman.net/WebLink8/ElectronicFile.aspx?docid=46767&&dbid=0 Response: The detention facility located at the north end of the project takes on runoff from the new cul-de-sac (shown in red on attached Exhibit A of the Haven Final Drainage Report). Calculations are provided for this basin to show adequate storage is provided in the chamber system. An Operations and Maintenance Agreement is attached to the Final Drainage Report for the proposed stormwater facilities for this site. 5 2. DSSP Section II.B – Provide top and bottom elevations and dimensions of the proposed dry wells and boulder pits. Response: Dimensions are shown on Sheet C4.0. Top and Bottom Elevations have been added to the chamber system on Sheet C4.0. 3. DSSP Section II.C.3 – As presented, locating a detention basin (Sub Basin #1) within the dedicated road ROW will not be permitted. Response: The proposed detention basin (Chamber System #1) has been relocated on private property along the northern property line. See Sheet C4.0. 4. DSSP Section II.B.5 – The proposed boulder pit for Sub-Basin #1 appears to be unmaintainable. a. Cleaning / maintenance of perforated drains in boulder fields has not been identified within the maintenance agreement. Response: Chamber System #1 has been moved out of the pavement area to along the northern property line and will have access available for maintenance. The Operations & Maintenance Manual attached to the storm report provided in this submittal refers to Haven as the responsible party for maintaining and cleaning the storm drain facilities on site. 5. Montana Post-Construction Storm Water BMP Design Guidance Manual Seasonal High Groundwater - The proposed project is located in an area that is known to have seasonally high groundwater. The applicant must demonstrate that seasonal high groundwater will not impact the function or maintenance of the proposed facilities. Industry guidance recommends a three-foot minimum separation from the bottom of the proposed facility to the underlying groundwater table. Response: While the project is known to be in an area of high groundwater, the design team is basing their design on best available data with a measure of conservatism. The Applicant requests that any groundwater issues be made a condition of approval. The permitting and construction start schedule is critical to the project’s success and the Applicant intends on monitoring groundwater, moving forward. Since the previous SP submittal, the building proposed FFE’s and the stormwater retention system have been elevated. Groundwater monitoring efforts are ongoing and will be collected through peak groundwater (presumably early June). 6 6. BMC 40.04.700 4.a - Prevent any off-site direct discharge of untreated stormwater and non-stormwater from development or redevelopment improvements a. As presented, the emergency vehicle drive access is graded in a manner to direct stormwater off site. Response: Site grading has been adjusted to direct stormwater runoff from the emergency vehicle drive access into the site. See Sheet C3.0. Utilities 1. DSSP V.B.11 Sanitary Sewer Services – Each Building must have a separate service line to the sewer main. Response: The sewer main has been extended into the site within a proposed public utility easement. Three separate service lines have been routed to each of the proposed buildings. See Sheet C5.0. 2. DSSP V.A.6 Services – Each building must have a separate service line to the water main. Response: The water main has been extended into the site within a proposed public utility easement. Three separate service lines have been routed to each of the proposed buildings. See Sheet C5.0. 3. BMC 38.410.070 B.2 - Municipal water, sanitary sewer, and storm sewer systems - The length of service lines from the main to the structure may not exceed 150 feet in length, unless approved in writing by the city. a. As proposed water and sewer main extension are required to service the development. The applicant is advised a public utility and access easement would be required over the main extension. The applicant must go through the infrastructure review process for main extensions, which include water and sewer design reports. Response: The water and sewer mains have been extended into the site within a proposed public utility easement. Please reference the Infrastructure plans for the water and sewer main design. Service lengths have been decreased. Transportation 1. It is unclear how the emergency vehicle access will be constructed. Describe the proposed emergency vehicle access road section and surfacing. The applicant must demonstrate that emergency vehicle access will not damage the surfacing during vehicle loading. Response: A Firetruck Turnaround Section structural detail has been included on Sheet C7.0 – Details. Two details are provided and the contractor is instructed to choose the least expensive option as both are approved sections per the Geotechnical Investigation. 7 2. PER the Van Horn Amended Plat E-39-C the Temporary Street Easement (FILM 198, Page 3914) must be released upon future development. A new street easement for the proposed cul-de-sac must be provided prior to site plan approval. Response: Sheet C1.1 is provided showing all existing and proposed easements including the Temporary Street Easement to be released. Exhibits and descriptions will be created and recorded at the County Clerk and Recorder once the City has approved the proposed easements as requested. 3. The connection to the existing sidewalk adjacent to the park must be completed and shown on the site plan as part of the development. Connect the proposed sidewalk to the second concrete panel. The applicant must ensure that ADA requirements are met with the connection. Response: The proposed sidewalk connection to the existing sidewalk and ADA ramp on the west side of Pond Row adjacent to the park is now shown on Sheet C2.0. 4. DSSP IV.H.3.c. - The mid-block crossing on Pond Row Road must include appropriate signage and striping. Response: Signage and striping at the mid-block crossing on Pond Row has been provided. See Sheet C2.0. 5. The applicant is advised that the proposed residential offset cul-de-sac must be submitted for formal infrastructure review, which includes plans and specifications. Response: The cul-de-sac will be included in the plans and specifications for the formal infrastructure review. Lighting 1. DSSP XII Mid-Block Crosswalks - A streetlight shall be located one half to 1 mounting height in front of the crosswalk on both sides of the street for all mid-block crossings. a. A streetlight must be shown on the site pan at the adjacent mid-block crossing to the north of the subject property. Response: Two streetlights are shown on Sheet C2.0 & C5.0 on either side of Pond Row at the mid-block crossing. This will also be included in the forthcoming Infrastructure submittal. b. The applicant is advised that the lighting improvements will need to be reviewed as a separate infrastructure submittal. The site plan can be approved prior to infrastructure review; however, the following requirements must be satisfied with the infrastructure submittal. DSSP Section XVIII Submittal Requirements: i. For Pedestrian Lighting submittals, provide a Photometric Plan for new installations showing compliance with Table C. Pedestrian Lighting Guidance. 8 Also provide luminaire cut sheets showing compliance with Section XIV. Pedestrian Luminaires. Response: Noted. This will be included in the forthcoming Infrastructure submittal. ii. Provide completed Pedestrian Luminaire Submittal form located in the DSSP section XVIII Response: Noted. This will be included in the forthcoming Infrastructure submittal. 2. BMC 38.400.070 - Street Lighting: The required public streetlight(s) must be included in a Special Improvement Lighting District (SILD), in accordance with the City of Bozeman Lighting and Electrical Specifications, prior to occupancy. Response: Noted. This will be included in the Infrastructure submittal. Paybacks 1. The subject property is located within the SID 683 Payback District boundary. The applicant must pay a fair pro-rata share upon connection to City water services. Reference City Commission Resolution No. 3772 or visit http://weblink.bozeman.net/WebLink8/0/doc/181712/Electronic.aspx. Response: Per a response from Katherine Maines (see attached email dated 03/29/2021), there is no owing on the SID 683 payback. 2. The subject property is located within the Meadow Creek Subdivision Sewer Payback District boundary. The applicant must pay a fair pro-rata share upon connection to City water services. Reference http://weblink.bozeman.net/WebLink8/0/doc/181720/Electronic.aspx. Response: Per a response from Katherine Maines (see attached email dated 03/29/2021), the Meadow Creek sewer payback calculation is $617.87. This will be paid prior to Site Plan approval. Conditions of Approval 1. The applicant must provide and file with the County Clerk and Recorder's office executed Waivers of Right to Protest Creation of Special Improvement Districts (SID’s) or special districts for the following, if not already filed: Response: Noted. This is in progress. Copies of the filed SID waivers will be provided prior to site plan approval. a. Street improvements to West Babcock Street including lighting, signalization, paving, curb/gutter, sidewalk, and storm drainage. b. Street improvements to Fowler Ave including lighting, signalization, paving, curb/gutter, sidewalk, and storm drainage. 9 c. Intersection improvements at Ravalli Street and Pond Row Road including lighting, signalization, paving, curb/gutter, sidewalk, and storm drainage. d. Intersection improvements at West Babcock Street and Fowler Ave including lighting, signalization, paving, curb/gutter, sidewalk, and storm drainage. The document filed must specify that in the event an SID is not utilized for the completion of these improvements, the developer agrees to participate in an alternate financing method for the completion of said improvements on a fair share, proportionate basis as determined by square footage of property, taxable valuation of the property, traffic contribution from the development, or a combination thereof. The applicant must provide a copy of the filed SID waiver prior to site plan approval. Water Conservation Division, Chelsey Trevino, ctrevino@bozeman.net The Water Conservation Division appreciates the use of drought tolerant plant species. The following recommendations to the Haven project plan provided to maximize landscape health and resiliency while minimizing outdoor water consumption. 1. On sheet L1.40, indicate the total landscaped area (ft2) and landscaped area of each hydrozone (ft2) – grouped by similar water needs of the vegetation. Response: This has been included. See Sheet L1.40. 2. On sheet L1.40, please provide clarification/confirmation on the type of irrigation to be used in all vegetated areas. Response: This has been clarified. See Sheet L1.40. 3. Please confirm that ‘native lawn’ and ‘grasses’ areas are to be irrigated with drip irrigation as shown on sheet L1.40. Response: This has been clarified. See Sheet L1.40. 4. On sheet L1.40, indicate if irrigation system will be connected to city or well water. Response: This has been clarified. See Sheet L1.40. 5. Include total seasonal water demand of the landscape based on vegetation type in gallons per month or gallons per season on sheet L1.40. Response: This has been included. See Sheet L1.40. 6. Specify ‘grasses’ and ‘lawn’ grass species to be installed in ‘native lawn’ areas. Response: This has been specified. 7. On sheet L0.00 include topsoil depth specification of 4”- 6” (after grading) to allow for proper root depth growth and assist with plant and turf grass resiliency. Response: This has been included on Sheet L0.00. 10 8. On sheet L0.00 specify the installation of water efficient sprinkler nozzles (multi-spray, multi-trajectory nozzles or ‘rotary nozzles’) if overhead irrigation is to be used within turf grass lawn areas. Specify the installation of a weather-based irrigation controller and rain sensor. Response: This has been specified on Sheet L0.00. Solid Waste Division, Russ Ward, rward@bozeman.net, 406-582-3235 1. Need 50 feet straight approach to front of refuse enclosure. Response: The 50-foot approach is dimensioned on Sheet C2.0 Site Plan. This is also labeled and dimensioned on A0.01 and L1.11. 2. Must have minimum of 10-foot clear opening measured from door jamb to door jamb. Response: Noted and provided. This is dimensioned on Sheet A9.00. 3. Roof of enclosure cannot overhang door opening to ensure truck access. Response: Noted and provided. This is detailed on Sheet A9.00. 4. Enclosure doors must open minimum of 180 degrees. Response: Noted and provided. This is detailed on Sheet A9.00. 5. Approach to front of enclosure must be at ground level without curb.’ a. Response: A zero height spill curb is provided instead of a standard 6” tall curb in front of the trash enclosure. The curb is necessary to maintain parking lot flow to the drainage area adjacent to the cul-de-sac. See Sheet C2.0 and C3.2. Northwestern Energy, Erica Chaney, Erica.chaney@northwestern.com 1. Has an application to Northwestern Energy (NWE) been submitted? Response: Coordination is on-going with Northwestern Energy. See attached Construction Application ticket number. 2. Per the responses to previous comments, the applicant is requesting single phase power for all three of the buildings. Response: Correct. 3. The applicant will need to submit the total gas and electric loads to the NWE project Engineer to determine the size of gas & electric service to each of the Buildings. Response: Noted. Gas and electric loading information will be provided in coordination with NWE. 11 4. Reviewing Building Elevation plans for Building A, the East Elevation shows an electric meter and cabinet only. No gas meter. For Building B, the East Elevation shows both an electric meter bas & cabinet and a gas meter. Response: Both buildings include an electrical meter, CT cabinet, and main distribution panel. Updated electrical service elevations are provided. There is no gas to Building A. 5. Electrical Services. On the Utility & Snow Storage Plan the applicant shows a single-phase service originating from Building A and terminating at an electrical meter on the east side of Building B. This type of service and is not allowed by NWE. Each service needs to originate from the transformer or a secondary junction can and terminate at the electric meter base. Response: The service layout has been updated. Building A and Building B are now on their own 800A services. 6. If the applicant is requesting single phase services to both Building A and Building B, then following are options to provide electric services to Building A & Building B. a. There is an existing 120v/240v overhead transformer on an existing pole near Building A. Depending on the size of the existing overhead transformer a single- phase overhead or underground service could be installed to the new meter base. Most likely a larger transformer will need to be installed which will most likely require a larger pole be installed to replace the existing pole. This option will need to be looked at by the NWE project engineer. Response: Coordination is on-going with Northwestern Energy. b. There is an existing 120v/240v overhead transformer on the existing pole near Building B. Depending on the size of the existing overhead transformer a single- phase overhead or underground service could be installed to the new meter base. Most likely a larger transformer will need to be installed which will most likely require a larger pole be installed to replace the existing pole. This option will need to be looked at by the NWE project engineer. Response: Coordination is on-going with Northwestern Energy. 7. Building C. Depending on the total electrical load for Building C and Building B a downstream electric service could be installed from Building B to Building C using the one electric meter on Building B. NWE will provide service up to an 800-amp single phase electrical service. Anything larger will require the use of a three-phase transformer. In addition, any downstream utilities past the meter are the responsibility of the owner. If applicant prefers to not use this option & have each building metered then, primary power will need to be extended to a point close to Building C and a single-phase transformer service installed. Response: A downstream electric service will be installed from Building A to Building C using the electrical meter on Building A. 12 8. Gas services. On the Utility & Snow Storage Plan & Elevation plans the applicant shows no gas service to Building A and one gas service to Building B. Response: There will be no gas provided to Building A. 9. As shown on the Utility & Snow Storage Plan there is a gas service from Building A to the fire pit however, as described before, there is no gas service shown on either the Utility Plan or Elevation plan for building A. Does the applicant a gas service to Building A? If so, there may not be enough room on the east wall of Building A and the gas meter will need to be located on the southeast wall corner near the electric meter location. Response: There will be no gas provided to Building A. 10. On the Utility & Snow Storage Plan, the gas main is shown to terminate near Building B and a gas service installed to the gas meter location on the east side of Building B. Then as shown on the west side of Building B the gas and electric services are down streamed to Building C. If Building C is going to have a separate gas and electric meter this type of service is not allowed by NWE. Response: A downstream electrical service will be installed from Building A to Building C using the one electrical meter on Building A. A downstream gas service will be installed from Building B to Building C using the gas meter on Building B. The fire pit will not require a stub as it will be run with a tank. 11. Depending on the total gas load for Building C and Building B a downstream service could be installed from Building B to Building C using the one gas meter on Building B. Any downstream utilities past the meter are the responsibility of the owner. If applicant prefers to not use this option and have each building metered then, a gas service will need to be extended, from the main along the east side of the property, to Building C. a. If the applicant is planning to have all buildings metered individually then installing the needed stubs for utilities to Building C before any of the other amenities such as the fire pit and walkways, would be recommended. Response: A downstream electrical service will be installed from Building A to Building C using the one electrical meter on Building A. A downstream gas service will be installed from Building B to Building C using the gas meter on Building B. The fire pit will not require a stub as it will be run from a tank. Fire Department, Scott Mueller, smueller@bozeman.net, 406-582-2382 1. A sidewalk from the fire riser/mechanical room in building B is required to connect to other internal concrete pathways. a. 2012/2018 International Fire Code: CHAPTER 5 FIRE SERVICE FEATURES Response: A sidewalk has been added to the east side of Building B. See C2.0. b. SECTION 504 ACCESS TO BUILDING OPENINGS AND ROOFS - 504.1 Required access. Exterior doors and openings required by this code or the International 13 Building Code shall be maintained readily accessible for emergency access by the fire department. An approved access walkway leading from fire apparatus access roads to exterior openings shall be provided where required by the fire code official. Response: Sidewalk accesses have been added to provide access leading from the emergency vehicle access to exterior building openings. See C2.0. Sincerely, Sarah Mohland, AIA Mike Russell, PE MASS-Group Sanderson Stewart Architect Civil Engineer Principal Project Manager