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31C-047 88 Village Hill-Coach House-SITE PLAN planning board narrative Juster Pope Frazier LLC Architecture | Planning 82 North Street Northampton,,Massachusetts 01060 www.justerpopefrazier.com 4 1 3 5 8 6 1 6 0 0 Village Hill Coach House Adaptive Re Use and Restoration Northampton, MA NORTHAMPTON PLANNING BOARD SUBMITTAL Schematic Design Narrative and Drainage Calculations August 14, 2017 Juster Pope Frazier Architects Northampton, Massachusetts CME Associates Inc Civil Engineers Woodstock, Connecticut Juster Pope Frazier LLC Architecture | Planning 82 North Street Northampton,,Massachusetts 01060 www.justerpopefrazier.com 4 1 3 5 8 6 1 6 0 0 14 August 2017 I am pleased to submit schematic design review documents on behalf of Denmark Property Group of Northampton, MA. These documents articulate the schematic design intentions for development of the “coach house” at Village Hill in Northampton, MA. Denmark Property Group has engaged Juster Pope Frazier as architects with the intent of renovating and restoring the coach house into a mixed use building. The building is currently planned to have a long term storage facility within the basement level. The first floor is planned as an educational use for a local non profit organization (negotiations are presently under way for this purpose). The top floor is being renovated into two loft apartments. You will notice that our submittal very closely matches the intentions and layout of the master plan work for the coach house. It is the intent of Denmark Property Group to break ground for this project in mid September 2017 after receiving all necessary approvals and permits. The project team has developed an initial opinion of preliminary construction costs which meets the financial goals of the client. The team will be further developing the building plans in preconstruction phase during the next month with a goal of having an acceptable Guaranteed Maximum Price in hand by early September 2017. Assuming all approvals, it is assumed that renovation work will require approximately eight months for completion. Please do call me with any questions, comments or concerns. We look forward to your input and an ongoing relationship on this project with Mass Development over the coming months. Sincerely Kevin Chrobak, Principal Architect Juster Pope Frazier Architects Northampton, MA. 01060 Juster Pope Frazier LLC Architecture | Planning 82 North Street Northampton,,Massachusetts 01060 www.justerpopefrazier.com 4 1 3 5 8 6 1 6 0 0 VILLAGE HILL ZONING REVIEW 10.03.16 PV DISTRICT ZONING REQUIREMENTS Front setback: 20’ COMPLIES Side setback: 15’ COMPLIES Rear setback: 20’ COMPLIES Max. height: 40’ (may be increased to 60 feet, provided buildings are articulated such that any portion of a building over 40 feet is set back at least 20 feet from all property boundaries) COMPLIES Parking: COMPLIES o PV has no minimum parking requirement ▪ The site was laid out to comply with the existing master plan. Bicycle parking: COMPLIES o Office = (1) space per 1,000 sqft o 5,200 gsf = 6 bicycle spaces Juster Pope Frazier LLC Architecture | Planning 82 North Street Northampton,,Massachusetts 01060 www.justerpopefrazier.com 4 1 3 5 8 6 1 6 0 0 SITE LIGHTING PHOTOMETRICS Photometric calculations were performed on the parking lot lighting to ensure that there was no “overspill” beyond the project property lines. These calculations were done by Hampden Zimmerman. The calculations were done utilizing our proposed site light fixture: Holophane Glaswerks FLAT LED, Prague on fifteen foot poles. This is a typical site lighting fixture throughout Village Hill. Cut sheet of the fixture is included within. SITE LANDSCAPING Landscaping is fairly minimal within the lot, in keeping with what has always been there. We are proposing that the existing 32” Maple be removed. This tree is severely compromised. In it’s place we are proposing 5 4” Caliper Japanese Red Maples along the North and East elevations meeting the requirements for replacement of existing trees of significant caliper. Once the new parking area is constructed, with related retaining wall, the original planting scheme on the south property line will be restored. SITE LAYOUT AND BUILDING DESIGN As noted in our introductory letter, the site layout conforms quite closely with the approved Village Hill Master Plan documents. The basic building form of the Coach House is left fully intact We have enlarged the dormer windows a bit since these are the only vertical surface providing daylight into the attic lofts. We have also shown additional skylights on the roof plane to further supplement daylight within the loft. PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 1" = 20' C1.0 EXISTING CONDITIONS PLAN ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 1" = 10' C2.0 SITE LAYOUT PLAN PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 1" = 10' C3.0 SITE GRADING PLAN PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 1" = 10' C4.0 SITE DRAINAGE & UTILITIES PLAN PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 A NTS C5.0 CONSTRUCTION DETAILS PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 NTS C6.0 CONSTRUCTION DETAILS PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 AS NOTED C7.0 EROSION & SEDIMENT CONTROL PLAN PMP AUGUST 1, 2017 LLC Architecture, Planning, Interior Des ign 413 . 586 . 1600 JUSTER POPE FRAZIER Northampton, Massachusetts 01060 82 North Street REMARKS REVISIONS NO.DATE BY SHEET TITLE DATE SCALE DRAWN BY SHEET NO. CHECKED BY VILLAGE HILL NORTHAMPTON, MA COACH HOUSE PROGRESS DRAWING NOT FOR CONSTRUCTION Civil Engineers 860.928.7848 Mansfield, CT 06268 33 Wilbur Cross Way Suite 105 NTS C8.0 EROSION & SEDIMENT CONTROL PLAN Coach House Drainage Report SECTION G Soils Mapping Soil Map—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 1 of 34687240468725046872604687270468728046872904687300468731046873204687330468734046872404687250468726046872704687280468729046873004687310468732046873304687340693700693710693720693730693740693750693760693770693780693790693800693810693820693830693840693850693860 693700 693710 693720 693730 693740 693750 693760 693770 693780 693790 693800 693810 693820 693830 693840 693850 693860 42° 18' 51'' N 72° 38' 58'' W42° 18' 51'' N72° 38' 51'' W42° 18' 47'' N 72° 38' 58'' W42° 18' 47'' N 72° 38' 51'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 03570 140 210 Feet 01020 40 60 Meters Map Scale: 1:779 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Hampshire County, Massachusetts, Central Part Survey Area Data: Version 11, Sep 14, 2016 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Mar 28, 2011—Apr 18, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 2 of 3 Map Unit Legend Hampshire County, Massachusetts, Central Part (MA609) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 253A Hinckley loamy sand, 0 to 3 percent slopes 0.1 3.0% 254A Merrimac fine sandy loam, 0 to 3 percent slopes 0.5 16.1% 741A Amostown-Windsor silty substratum-Urban land complex, 0 to 3 percent slopes 2.5 80.8% Totals for Area of Interest 3.0 100.0% Soil Map—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 3 of 3 Hydrologic Soil Group—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 1 of 44687240468725046872604687270468728046872904687300468731046873204687330468734046872404687250468726046872704687280468729046873004687310468732046873304687340693700693710693720693730693740693750693760693770693780693790693800693810693820693830693840693850693860 693700 693710 693720 693730 693740 693750 693760 693770 693780 693790 693800 693810 693820 693830 693840 693850 693860 42° 18' 51'' N 72° 38' 58'' W42° 18' 51'' N72° 38' 51'' W42° 18' 47'' N 72° 38' 58'' W42° 18' 47'' N 72° 38' 51'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 03570 140 210 Feet 01020 40 60 Meters Map Scale: 1:779 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Hampshire County, Massachusetts, Central Part Survey Area Data: Version 11, Sep 14, 2016 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Mar 28, 2011—Apr 18, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydrologic Soil Group—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 2 of 4 Hydrologic Soil Group Hydrologic Soil Group— Summary by Map Unit — Hampshire County, Massachusetts, Central Part (MA609) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 253A Hinckley loamy sand, 0 to 3 percent slopes A 0.1 3.0% 254A Merrimac fine sandy loam, 0 to 3 percent slopes A 0.5 16.1% 741A Amostown-Windsor silty substratum-Urban land complex, 0 to 3 percent slopes 2.5 80.8% Totals for Area of Interest 3.0 100.0% Hydrologic Soil Group—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 3 of 4 Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Hampshire County, Massachusetts, Central Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 7/28/2017 Page 4 of 4 Coach House Drainage Report SECTION H Hydrologic Data NOAA Atlas 14, Volume 10, Version 2 Location name: Northampton, Massachusetts, USA* Latitude: 42.3117°, Longitude: -72.6462° Elevation: 203.3 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence interval (years) 1251025501002005001000 5-min 0.328 (0.252-0.421) 0.389 (0.299-0.501) 0.490 (0.375-0.633) 0.573 (0.436-0.745) 0.688 (0.508-0.935) 0.777 (0.562-1.08) 0.865 (0.609-1.25) 0.970 (0.651-1.44) 1.11 (0.717-1.71) 1.21 (0.768-1.91) 10-min 0.464 (0.356-0.597) 0.551 (0.423-0.709) 0.694 (0.531-0.896) 0.812 (0.618-1.06) 0.975 (0.719-1.32) 1.10 (0.796-1.53) 1.23 (0.862-1.77) 1.37 (0.922-2.04) 1.57 (1.02-2.42) 1.72 (1.09-2.70) 15-min 0.546 (0.419-0.702) 0.649 (0.498-0.835) 0.816 (0.624-1.05) 0.955 (0.727-1.24) 1.15 (0.846-1.56) 1.29 (0.937-1.80) 1.44 (1.02-2.08) 1.62 (1.09-2.40) 1.85 (1.20-2.84) 2.02 (1.28-3.18) 30-min 0.750 (0.576-0.964) 0.891 (0.684-1.15) 1.12 (0.859-1.45) 1.32 (1.00-1.71) 1.58 (1.17-2.15) 1.78 (1.29-2.48) 1.99 (1.40-2.86) 2.23 (1.49-3.30) 2.54 (1.65-3.92) 2.79 (1.76-4.38) 60-min 0.954 (0.732-1.23) 1.13 (0.870-1.46) 1.43 (1.09-1.85) 1.67 (1.27-2.18) 2.01 (1.48-2.73) 2.27 (1.64-3.15) 2.53 (1.78-3.65) 2.84 (1.90-4.21) 3.24 (2.10-4.99) 3.55 (2.25-5.58) 2-hr 1.21 (0.937-1.54) 1.44 (1.11-1.84) 1.81 (1.40-2.32) 2.12 (1.63-2.73) 2.55 (1.90-3.44) 2.87 (2.10-3.98) 3.20 (2.28-4.62) 3.63 (2.45-5.36) 4.20 (2.73-6.43) 4.63 (2.94-7.25) 3-hr 1.38 (1.08-1.75) 1.65 (1.28-2.09) 2.08 (1.61-2.66) 2.44 (1.88-3.14) 2.94 (2.20-3.97) 3.32 (2.44-4.60) 3.71 (2.66-5.36) 4.24 (2.86-6.24) 4.95 (3.22-7.56) 5.48 (3.49-8.56) 6-hr 1.71 (1.34-2.16) 2.07 (1.62-2.61) 2.66 (2.08-3.37) 3.15 (2.44-4.01) 3.82 (2.89-5.14) 4.34 (3.22-5.99) 4.85 (3.52-7.02) 5.64 (3.82-8.26) 6.68 (4.36-10.2) 7.47 (4.76-11.6) 12-hr 2.09 (1.65-2.61) 2.58 (2.04-3.23) 3.38 (2.66-4.25) 4.05 (3.17-5.11) 4.96 (3.78-6.64) 5.67 (4.24-7.80) 6.37 (4.67-9.22) 7.51 (5.11-10.9) 9.01 (5.89-13.6) 10.1 (6.49-15.7) 24-hr 2.46 (1.97-3.05) 3.09 (2.46-3.83) 4.11 (3.26-5.12) 4.95 (3.91-6.21) 6.12 (4.70-8.15) 7.02 (5.30-9.62) 7.91 (5.86-11.4) 9.42 (6.43-13.6) 11.4 (7.48-17.2) 12.9 (8.28-19.8) 2-day 2.82 (2.27-3.46) 3.55 (2.85-4.37) 4.75 (3.80-5.86) 5.74 (4.57-7.14) 7.11 (5.51-9.42) 8.16 (6.22-11.1) 9.21 (6.88-13.3) 11.0 (7.57-15.9) 13.4 (8.85-20.1) 15.3 (9.83-23.3) 3-day 3.08 (2.49-3.76) 3.87 (3.13-4.74) 5.17 (4.16-6.36) 6.25 (5.00-7.73) 7.73 (6.02-10.2) 8.88 (6.79-12.1) 10.0 (7.51-14.4) 12.0 (8.26-17.2) 14.7 (9.68-21.9) 16.7 (10.7-25.4) 4-day 3.31 (2.68-4.03) 4.15 (3.36-5.06) 5.52 (4.46-6.77) 6.66 (5.35-8.22) 8.23 (6.43-10.8) 9.44 (7.24-12.8) 10.7 (8.00-15.3) 12.8 (8.79-18.3) 15.6 (10.3-23.2) 17.7 (11.4-26.9) 7-day 3.95 (3.23-4.78) 4.88 (3.98-5.91) 6.40 (5.21-7.79) 7.66 (6.19-9.39) 9.40 (7.38-12.3) 10.7 (8.27-14.4) 12.1 (9.08-17.1) 14.3 (9.92-20.4) 17.3 (11.5-25.6) 19.6 (12.7-29.6) 10-day 4.59 (3.77-5.54) 5.57 (4.57-6.73) 7.17 (5.86-8.69) 8.50 (6.90-10.4) 10.3 (8.12-13.4) 11.7 (9.04-15.6) 13.1 (9.86-18.4) 15.4 (10.7-21.8) 18.4 (12.2-27.1) 20.6 (13.4-31.1) 20-day 6.62 (5.49-7.92) 7.66 (6.34-9.16) 9.35 (7.70-11.2) 10.7 (8.80-13.0) 12.7 (10.0-16.2) 14.2 (10.9-18.6) 15.7 (11.7-21.5) 17.7 (12.4-24.9) 20.4 (13.6-29.9) 22.4 (14.6-33.6) 30-day 8.31 (6.92-9.89) 9.38 (7.80-11.2) 11.1 (9.22-13.3) 12.6 (10.3-15.1) 14.6 (11.5-18.4) 16.1 (12.4-20.9) 17.6 (13.1-23.8) 19.5 (13.7-27.2) 21.9 (14.7-32.0) 23.8 (15.5-35.5) 45-day 10.4 (8.70-12.3) 11.5 (9.63-13.6) 13.4 (11.1-15.9) 14.9 (12.3-17.8) 17.0 (13.5-21.3) 18.6 (14.4-23.9) 20.2 (15.0-26.9) 21.9 (15.4-30.4) 24.1 (16.2-34.9) 25.7 (16.8-38.3) 60-day 12.1 (10.2-14.3) 13.3 (11.2-15.7) 15.2 (12.7-18.1) 16.8 (14.0-20.1) 19.1 (15.2-23.7) 20.8 (16.1-26.5) 22.5 (16.6-29.7) 24.0 (17.0-33.3) 26.1 (17.6-37.7) 27.6 (18.1-41.1) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top Page 1 of 4Precipitation Frequency Data Server 11/20/2016http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=42.3117&lon=-72.6462&dat... PF graphical Back to Top Page 2 of 4Precipitation Frequency Data Server 11/20/2016http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=42.3117&lon=-72.6462&dat... Maps & aerials Small scale terrain Large scale terrain Large scale map + – 3km 2mi + – 100km 60mi + – 100km 60mi Page 3 of 4Precipitation Frequency Data Server 11/20/2016http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=42.3117&lon=-72.6462&dat... Back to Top US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring, MD 20910 Questions?: HDSC.Questions@noaa.gov Disclaimer + – 100km 60mi Page 4 of 4Precipitation Frequency Data Server 11/20/2016http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=42.3117&lon=-72.6462&dat...