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HomeMy WebLinkAbout20190771 Allendale Supportive Housing Engineering Review 11-18-19 Carmina -Wood • Morris aPC 487 Main Street Suite 600 Buffalo,New York 14203 P:716.842.3165 F:716.842,0263 W:cwm-ae.com awl November 18, 2019 Ms. Susan B. Barden,AICP 3 Principal PlannerrD �--h City of Saratoga Springs 474 Broadway . Saratoga Springs, New York Re: Plan Review Responses for Allendale City of Saratoga Springs Plan Number: 20190770 Ms. Barden: Carmina Wood Morris is in receipt of City of Saratoga Springs Plan Review comments for the above referenced project,which were received in final on November 15, 2019. We have addressed all comments below in writing and made subsequent revisions to the Site Plan: Planning Staff 1. Staff has requested elevation drawings. Response: We have provided colored elevations. 2. The two residential buildings don't relate to each other. Can they be sited to provide for better interaction? Response: Due to the configuration of the site,travel distances from parking to building,and the necessity to have one common amenity element equal distance to both buildings,the site plan is drawn as-is. We feel that they do relate to each other along with the T-4 building to create a nice synergy with a focal point of community space in the center. 3. The outdoor walking path between the two buildings should connect to an interior sidewalk and not end at the rear of the parking areas. Response: Agreed. We propose the new sidewalk be used to avoid walking through the parking lots. We have updated the Site Plan. 4. Streetscape improvements-sidewalk, curbing, street trees, street lights, per the City's local street standard - should be provided along both Allen St.frontages. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 2 Response: We are showing sidewalks. Curbing is being provided where possible due to lack of existing municipal storm water system. If we constructed new curbs in all locations, this would create major issues with the sheeting of storm water off Allen Drive. We need direction on how to place the street trees as the City Standard is for them to be in the ROW,but there is not enough room. 5. At least one of the three curb cuts accessing the mixed-use building should be eliminated. Response: We are proposing a connection the NRP access point via the access easement adjacent to our property. We typically try to avoid dead end parking areas,but since the southern portion of the T-4 lot would be for the residents of that building we have shown it as such. The dual curb cuts on the north side are shown to avoid having the dead end situation and lose any of the parking needed for the Workforce Training. 6. Ability to reduce parking and have shared parking arrangement? Response: We have cross street shared parking between the three buildings;we currently meet or exceed the minimum requirement. 7. Safe pedestrian access from the residences to the non-residential building should be provided. Response: We are showing a striped crosswalk between the UR-4 and T-4 sites. 8. Addition of vegetative buffer between the residential parking areas and the street? Response: We are currently meeting the City standard. 9. Coordination of traffic mitigation improvements with NRP Group project? Response: We are not aware of any traffic mitigation improvements required. 10. At least 9 bicycle parking spaces should be provided. Response: We are showing bicycle parking;refer to revised C-100. 11. The applicant should confirm that at least 10% of the area of the parking areas are landscaped green space as required. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 3 Response: Both parking lots on the west side(UR-4)meet the requirement at 11.3%. The parking on the east side(T-4)site complies with the 10.6% 12. Evaluation of recreation land requirements for site plan containing residential units (7.2.18). Response: We are not clear on this comment. We have revised the playground area to be more of a civic space. Traffic 1. On the plan sheet C-100,on the west side of Allen drive,the plans shows the relocation of the parking to larger parking lots that are further west on the property. The site plan does not show sidewalks being installed where the parking currently exists,which would create gaps in the sidewalk. A sidewalk should be required for the entire length of the property to and along Church St/9N Response: Our revised C-100 shows a continuous side walk for the entire length of the property to Church St. City Engineer's Office 1. Map of Survey: Final mylar will require seal/signature by a PLS. Response: Understood and will have provided from surveyor. 2. Dwg. C-001: Provide protection fencing around trees not to be removed. Response: Will be added to plan. 3. Dwg. C-002: Provide detail for a concrete truck washout station and show location(s) on Dwg. C-001. Response: Currently there is one shown on the East T-4 site,another will be added to the west UR-4 site. 4. Dwg. C-100: Street improvements (walks, lighting, etc...) required per City Standard Local Street Detail. (*Note: Standard Details available on the City's website) Response: City Standard Details will be added/referenced on the drawings as necessary. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 4 5. Dwg. C-101: Include City Standard Details (i.e.walks, lighting,asphalt,etc...)for street improvements in R.O.W. Response: City Standard Details will be added/referenced on the drawings as necessary. 6. Dwg. C-200: Infiltration basin elevations for Catchment 3P appear to be reversed. Response: Elevations will be corrected. 7. Dwg. C-300: How is building roof runoff being managed? Was consideration given to using GI practices (i.e. bioretention areas) instead of grassed infiltration basins? Response: Roof downspouts are to discharge on splash blocks and be directed towards the infiltration basins. The infiltration basins provide treatment of the Water Quality volume in the same manner as a bioretention area or rain garden would. 8. Dwg. C-301: Include City Standard Details (i.e.trench section)for pipe work located in City ROW. Response: City Standard Details will be added/referenced on the drawings as necessary. 9. Dwg. C-400:Water pipe to be Class 52, cement-lined DIP (C-900 pipe not allowed). Can domestic water and fire service be combined to afford (1) tap/connection on City water main for each building? Saratoga Co. Sewer District#1 to approve sanitary sewer connections including design and materials. Response: Water service and pipe to be changed as noted above. Who submits plans and reports to Saratoga Co.Sewer District#1 for review? We will address any comments received. 10. Dwg. C-401: Include City Standard Details (i.e.water service). Gate valve(s) to be Mueller Series 2361 RW MJ, RH-open operation. Response: City Standard Details will be added/referenced on the drawings as necessary. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 5 11. City arborist to review/approve planting details and schedule. Response: Do we submit to the City Arborist independently of this submittal? We will address and comment received. B&L:General 1. Are park benches or low impact lighting being considered in the outdoor recreation and playground area?This area will have what type of ground surface? Response: We have revised the playground area to be more of a civic space. Outdoor lighting can be added as required by city and ownership operations. Playground surface will be a rubber surface with drainage beneath and a mow strip around the perimeter. 2. How old are the buildings and will hazardous materials such as asbestos and underground storage tanks require removal?The demolition plan sheet should include language of compliance with applicable federal, state and local codes regarding demolition, material storage and disposal activities Response: Buildings were built in the 1960's. We have a Phase Ion both properties, there is likely asbestos in the buildings. We are aware we will have to properly remediate/dispose during demolition. We will add the requested language. 3. Are buildings slab on grade with no basement or crawl spaces? Response: Proposed buildings are slab on grade with no basements or crawl spaces. 4. Is there a heavy duty asphalt cross section that will be provided in areas where trucks such as garbage and fire trucks will utilize?Three inches of asphalt over 8 inch deep sub-base seems inadequate for durability in this climate. Response: Heavy Duty pavement can be added to the site plan within garbage truck paths as recommended by the Geotech Report. 5. Indicate source of mapping and elevations of utilities on the plans. Size of sewer is noted as 10-inch (reputed). Response: Elevations and mapping of existing utilities including the sanitary sewer were provided by the Surveyor. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 6 6. Is there a cover sheet and drawing index available? Response: We will include a cover sheet and drawing index. 7. See attached City comments from Al flick. Response: See previously addressed comments above. B&L: Water and Sanitary Sewer 1. We request confirmation that the new fire sprinkler systems can get the required fire flow from the proposed and existing water distribution system per NFPA standards. Discuss internal plumbing connections to existing building and show fire flow computations in a brief Engineer's Report. Existing hydrant flow tests should be utilized to confirm required fire flow demand is available from the municipal system which is noted to be a 6-inch water main. Can the required fire flow demand be furnished through 4-inch water services, pressure reduction by backflow preventer and accounting for all pressure losses? Please add a brief section to the report discussing service sizing, pressure losses and available pressure and capacity at highest floor sprinkler heads and shower heads 6'above floor level. Response: Both UR-4 buildings will utilize an NFPA 13R system throughout and the T-4 building will have a NFPA 13 system for the ground level and 13R above. The actual calculations will be completed once the design/build Sprinkler Subcontractor is selected,and generates his permit documents,and the service line will be confirmed/review. Please refer to Water&Sanitary Engineers Report. 2. How many 1-and 2-bedroom units are proposed? Indicate proposed daily water demand and include in Engineers Report. Can water service be provided in a single pipe instead of a dedicated fire and domestic service line? See al flick's comments.Where are water meters proposed? Response: We have a total of(55)units on the UR-4, which has a mix of(4)3BD, (31) 2BD,and(20) 1 BD. We have a total of(12)units on the T-4 lot, which has a mix of(8) 2BD and(4) 1 BD. We would prefer one water service as opposed to splitting domestic and fire. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 7 3. Verify water main size as it is indicated as 6-inch (reputed). Response: Watermain size(6")was provided by surveyor,assumed to be based off record drawings,but will be verified with City DPW. 4. Provide minimum of 2.0% slope for sewer laterals for multi-resident buildings that will likely include non-flushable wipes in wastewater. Response: Proposed building sewer lateral slopes will be reviewed. If possible, slopes will be increased to 2.0%. 5. Indicate source of mapping and elevations of utilities. Size of sewer is noted as 10-inch (reputed). Indicate name and date of surveyor/survey. Response: Utility mapping was provided by surveyor. All utilities will be verified with City DPW. 6. All water main and services shall be 5 foot burial depth. Revise details that show 4'-6"depth. Response: Utility plan calls for 5'minimum cover on water services. Details will be revised to reflect this. B&L: Stormwater Pollution Prevention Plan (SWPPP) 1. The site proposes 5 infiltration basins on the west side of Allen drive and a perforated pipe network for the east side.There were only two test pits and infiltration tests performed generally in the center of the site on the west side. At least two to three more areas should be investigated on the north and south ends of the site at infiltration basin areas 1P and 6P. Another should be performed on the east side of Allen drive in our opinion as soil conditions and groundwater table can fluctuate.The CT Male soils Report recommended additional tests in the actual locations on page 3 of their report and we concur. Response: Additional test pits will be performed at the locations of the proposed infiltration ponds/systems. 2. Infiltration practices will need some level of pre-treatment and suggest 2' deep sump pits for the drainage structures. Response: The sumps in the proposed catch basins can be increased to 2'to provide November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 8 pre-treatment. 3. There is concern for how the perforated piping system on the east side is maintained and protected. Snout devices could help keep flotsam out of the pipes and sumps could be vacuumed out regularly. Provide additional language in the post construction inspection and maintenance section of the SWPPP.Standing water above invert elevations of perforated pipe after storm events is an indication that system may need cleaning. Response: Additional maintenance language can be added. Snout Devices or traps can be added to the inlets to the infiltration pipe system. 4. We recommend moving the perforated piping on the east side closer to the building and farther away from the north, south and easterly property lines to minimize re-charge close to the adjacent properties. Shorter pipe lengths could be possibly be offset by using 15-inch pipe instead with greater storage for intense storm events. Specify perforation pattern with holes or slots all around circumference of pipe and not rely on just holes near the bottom. Response: The proposed infiltration system on the east site will be re-examined. The current system was designed to allow infiltration throughout the entire pipe system,therefore allowing infiltration over a greater area and not point loading the infiltration area to a small footprint. Perforation patterns of the pipes will be specified. 5. Provide answer to NOI question 19. Response: The NOI will be completed once comments addressed and final design is complete. B&L: Plans Sheet C-001 1. Supplement with demolition notes indicating materials anticipated,temporary storage (if any) and rapid disposal in accordance with prevailing Federal, state and local laws. Response: Any required additional notes will be added to the sheet. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 9 Sheet C-100 2. Are light wall packs proposed on buildings? Northerly exit of north building does not seem lighted. Response: No, we have covered entrances which have recessed lighting. All egress points will be provided with the required minimum footcandles. 3. Check all detail legend symbols/numbers. Concrete walk to playground is labeled handicap sign. Response: The walk to the playground is called out with triangle Note#7"Outdoor walking path,coordinate with owner". Hexagon Detail Note#7 refers to the Handicapped Parking Sign. Sheet C-101 4. Label and detail sign at handicap ramp. Response: The sign at the handicapped ramp is called out with triangle Note#1 "Install"No Parking"sign,MUTCD sign No.P1-1C"and is also called out and shown on the Handicapped pavement Markings&Signage Detail#6 on C-101. 5. Is a heavy duty asphalt section proposed? Response: Heavy Duty pavement was not called out,but will be added as required for the garbage truck routes 6. Provide detail for dumpster concrete slab with all information to construct for this high impact and dynamic force application. Response: The dumpster pad is called out with Detail#48-Concrete Slab on Grade. Sheet C-200 7. Label all contours, particularly within infiltration basins and provide note of bottom elevation proposed across flat bottom. Response: Contours and elevations will be added as necessary. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 10 Sheet C-300 8. Revise invert elevations on east side perforated piping as they are 100' higher than intended. Response: Invert elevations will be revised. Sheet C-301 9. Provide deeper sumps and snout devices. Response: Sumps on catch basins will be revised as suggested. Sheet C-400 10. See general comments under water/sewer and increase lateral pipe slopes to 2.0% minimum. Response: Comments will be addressed as necessary. 11. Revise water main piping to class 52 ductile iron pipe. Response: Water main piping to be revised as requested. Sheet C-401 12. Revise riser detail to reflect use of 6-inch laterals all the way to building without reduction and normal depth without payment limits Response: Details will be revised as necessary. 13. Revise water main and service depth to 5' minimum. Response: Water main service is called out to have 5'min.cover. Sheet L-100 14. Are any shrubs proposed at edges of infiltration basins? Response: Currently none proposed 15. What are three tree symbols in playground area? Please label. Additional shade trees and park benches should be considered for adults supervising children at play in our opinion. Response: The tree symbols are existing trees to remain, will be called out. Additional shade trees and park benches can be added if required. November 18,2019 City of Saratoga Springs Plan Review 20190770 Allendale Page 11 16. Consider coniferous tree buffer on west side of playground to shield existing properties from noise and supplement fence. Response: Additional tree buffer will be considered. Sheet LP-100 17. Provide lighting levels at each building, particularly entrances. Are low-level lighted bollards along playground path proposed? Response: We are proposing LED can lights in the porches;we could do a wall pack light over the stair exits where we don't have a canopy for downlights. 18. Specify lighting fixtures and downcast features. Are LED lights proposed? Response: We will specify light fixtures. Please let us know if you have any questions or comments. We look forward to your approval of this project. Thank you. Sincerely, Brian J. Slev‘r,AIA, NCAR: • Senior Associate ) Attachments: Revised Sheet C-100 1:ZP81.9-1.-60.591.:#devi xsi E,1 CO s„ ,F3,:, E•01142..f: tll .iZ'L 0 AN'sbupds sboleisS ' L a/TO u env buisnoH eARJoddns eiepueliv • , :SNOISIA3. OH OH e,T,g'.3 . 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