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Canal Greenway Retaining Wall Application.pdfNorthampton-New Haven Canal Greenway Retaining Wall 1 COMMUNITY PRESERVATION PROJECT APPLICATION COVER SHEET I: Project Information Project Title: Northampton-New Haven Canal Greenway Trail Retaining Wall Project Summary: CPA Funding is requested to repair a retaining wall along the Northampton-New Haven Canal Greenway. The collapsing wall is over 100 years old, and will force the closure of the multi-use trail near Veterans Field when it gives way. CPA funds will be used as match for an already-received MassTrails grant. Expedited review of this application is requested to allow us to go out to bid and hire a contractor to be ready for early spring construction and allow work to be done before the June 30 state grant deadline. (The City cannot sign a contract without funding) Estimated start and completion date: Fiscal Year 2023 CPA Program Area (check all that apply):  Open Space � Historic Preservation � Community Housing  Recreation II: Applicant/Developer Information Contact Person and or/primary applicant: Carolyn Misch Property Owner (if applicable): City of Northampton Organization (if applicable): Office of Planning and Sustainability Mailing Address: City Hall, 210 Main Street, Second Floor Daytime phone #: 413-587-1287 Fax #: 413-587-1264 E-mail address: cmisch@northamptonma.gov III: Budget Summary Total budget for project: $300,000 CPA funding request: $120,000 CPA request as percentage of total budget: 40% Applicant’s Signature: Date Submitted: September 13, 2022_______________________ Northampton-New Haven Canal Greenway Retaining Wall 2 Narrative The New Haven and Northampton Canal Greenway follows the approximate path of the 1800’s canal that preceded the rail line, from Northampton south to Long Island Sound New Haven. Approximately ¼ mile south pf downtown, near Veterans Field and behind West Street, a stone retaining wall is in the slow process of collapsing. When it does, Greenway access along the multi-use trail in this location will be lost without a far more expensive repair project. This will break links from southern Northampton and points south to downtown, as well as close links from downtown to the Rocky Hill Greenway shared use trail. This link, though short, is critical, and without it, Northampton would revert from a trail network to a series of unconnected shared use paths. The wall was constructed ca. 1854 using large cut stone blocks, dry laid and fitted, at an angle sloping back to the north to contain the natural earthen rise on its north side. The retaining wall is 205 feet in length and reaches a maximum height of approximately 18 feet. The wall is constructed of a combination of large irregularly shaped stone blocks and smaller tabular pieces fitted into cracks and voids between the larger elements. Both the eastern and western ends of the wall are sloped downward to follow what was presumably the natural contours of the hill. The wall is partially covered in plant growth, mostly vines. The wall is in deteriorating condition. Pieces of the wall have fallen out and concrete has been used to fill some gaps and support the base of the wall. The large areas of concrete at the base of the wall are partially covered in graffiti. A second retaining wall is located on the south side of the rail trail, on what would have been the north side of the Mill River. The river has been diverted away from this area, so only a dry river channel is now present. Presumably that retaining wall was also built in the 1850s to shore up the railroad bed. As of 2022, substantial gaps are present throughout the wall. This includes one gap approximately 2 feet by 4 feet in size at the base of the wall. Presumably, pieces of the wall have fallen out of place either through outward soil pressure from the embankment; natural activity such as earth movement, water seepage, flooding, plant root action, and winds; or vibration from use of the adjacent railroad during its ca. 120 years of activity. Several attempts to consolidate the wall are evident. Concrete has been used in places to fill gaps in the wall and secure loose pieces of stone (Figure 4). In the western half of the wall, a number of poured concrete forms were set onto the base of the wall, covering the lower approximately four feet of the wall. The City installed a 40 foot length of 8 foot tall chain link fence along the north side of the rail trail as protection from falling stone from approximately 75-115 feet east of the western end of the wall, but this was only a temporary measure. Northampton-New Haven Canal Greenway Retaining Wall 3 The City has applied for and received MassTrails funding to install a long-term gabion wall solution. This work proposed will enable the collapse threat to be eliminated and protect the trail. The award was just made in July 2022, but all work must be completely finished by June, 2023. For this reason we are respectfully requesting that the CPC conduct a semi-expedited review at the first meeting of the funding cycle in September. If CPA funds are recommended and approved by Council in the fall, we can immediately go out to bid, award a contract in the winter, and conduct the work in early spring 2023. Without expedited review, the bid process, which itself is extended as a construction project, could not begin until January. This compressed construction timeline would create a real risk both of lack of bidders, as jobs for spring for many firms are set in the fall, and of increased bid prices as a result of additional escalation costs. If bids come are received in excess of what funds are available from MassTrails and local fund, we would need to obtain additional funding, which would necessitate surrender of the MassTrails funds not able to be spent by the end of the fiscal year. The wall repairs will need to be completed at some point very soon, and we want to be able to achieve all of the work needed with the MassTrails funding. We have a completed project manual, site control, and all of the permits necessary to begin work as soon as funding is available. As part of the grant review, the Department of Conservation and Recreation required MassHistoric signoff that no historic resources would be adversely impacted. We prepared a historic inventory Form F documenting the wall’s history and condition, and obtained MassHistoric approval; the final regulatory hurdle. This project is an excellent embodiment of ‘fix it first,’ will maximize the utility of existing City-owned resources, and will protect a critical and well- loved section of the multi-use trail network. Project Budget: We applied for $160,000 in MassTrails funding in January 2022, and were awarded the grant in July. Since the application and budget estimate were finalized in late 2021, construction and mobilization costs have increased dramatically. Discovery of a previously unknown abandoned sewer line that must be filled also increased cost. We have completed all of the value engineering possible to achieve the project without compromising the final structural integrity of the new wall. Item CPA Match Flowable Fill to Seal Discovered Sewer $20,000 (DPW) Gabion Wall In-Place $60,000 $160,000 (MassTrails) Miscellaneous Site Work $17,000 Construction Administration, Contingency and Escalation $43,000 TOTALS $120,000 $180,000 Northampton-New Haven Canal Greenway Retaining Wall 4 ATTACHMENTS: Draft Project Manual and Planset Wall ‘Form F’ Photos Landscape Architecture Land Surveying Planning Civil Engineering Prepared By: Sheet Index Date: NEW HAVEN & NORTHAMPTON Site Plan for Prepared For: Locus Map 4 Allen Place Northampton Massachusetts 01060 www.berkshiredesign.com COVER C-101 EXISTING CONDITIONS PLAN C-111 SITE PLAN C-112 SANITARY SEWER CONTROLLABLE DENSITY FILL INJECTION PLAN C-501 DETAILS S-1 ELEVATION & SECTION City of Northampton Office of Planning & Sustainability 210 Main Street Northampton, MA 01060 Berkshire Group Design September 21, 2022 CANAL GREENWAY RETAINING WALL Northampton, Massachusetts 520'±115'±195' ±160155150145140135130125120115120125 130 135 140 145150155160165170175 SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSWEST STCLARK AVE SCHOOL ST FORT HILL TERRACENEW H A V E N & N O R T H A M P T O N C A N A L G R E E N W A Y C-111 MATCHLINE Checked By: Drawn By: Revisions Scale: Date:Sheet Number This drawing is not intended nor shall it be used for construction purposes unless the signed professional seal of a registered landscape architect, civil engineer or land surveyor employed by The Berkshire Design Group, Inc. is affixed above. Do not scale drawing for quantity take-offs or construction. Use written dimensions only. If dimensions are incomplete, contact The Berkshire Design Group Inc. for clarification. © Copyright The Berkshire Design Group, Inc. This drawing and all of its contents are the express property of The Berkshire Design Group, Inc., and shall not be copied or used in any way without the written consent of The Berkshire Design Group, Inc.F:\NORTHAMPTON - BIKE PATH GABION WALL\02-DESIGN PROCESS\03-DRAWINGS\01-XREF\SITE PLAN.DWG PLOT DATE: 8/24/2022New Haven & Northampton Canal Greenway Retaining Wall Web: http://www.berkshiredesign.com Email: bdg@berkshiredesign.com (413) 582-7000 4 Allen Place, Northampton, Massachusetts 01060 FAX (413) 582-7005 Landscape Architecture Civil Engineering Planning Berkshire Group Design Land Surveying City of Northampton 210 Main St. Northampton, MA SEPTEMBER 21, 2022 LM/DS CC C-1011"=40' EXISTING CONDITIONS PLAN SCALE 1"=40'-0" (if printed full size @ 24" x 36") 0 80'40'20'120' APPROXIMATE LOCATION OF EXISTING RETAINING WALL EXISTING CONDITIONS NOTES 1.THIS PLAN WAS DEVELOPED USING PUBLIC DATA FROM MASS GIS AND ALL SITE INFORMATION HEREIN SHOULD BE CONSIDERED APPROXIMATE. 2.THIS PLAN IS PREPARED AS A SITE DESIGN AND IS NOT INTENDED TO BE USED FOR DETERMINATION OF PROPERTY LINES. 3.THE CONTRACTOR SHALL FIELD VERIFY ALL EXISTING CONDITIONS. IF A DISCREPANCY IS FOUND BETWEEN THIS PLAN AND THE ACTUAL FIELD CONDITION, THE CONTRACTOR SHALL IMMEDIATELY NOTIFY BERKSHIRE DESIGN GROUP. CONSTRUCTION SITE ACCESS ALL EQUIPMENT AND MATERIALS TO BE STAGED AND STORED ON PATH AND DESIGNATED AREA IN VETERAN'S FIELD PARKING LOT DURING CONSTRUCTION PATH DETOUR AND CLOSURE DURING CONSTRUCTION SEE DETAILS 01/C-501, 03/C-501, 04/C-501 EXISTING 36" RCP SANITARY LINE AND MANHOLES EXACT LOCATION TO BE CONFIRMED IN THE FIELD DESIGNATED MATERIALS STAGING AREA DURING CONSTRUCTION EXISTING 24" BRICK SEWER LINE EXACT LOCATION TO BE CONFIRMED IN THE FIELD //////////////////////115'±195'±160155150145140135130125120115120 125 130 135 140 145150155160165170175 SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSNEW H A V E N & N O R T H A M P T O N C A N A L G R E E N W A Y C-111 MATCHLINE Checked By: Drawn By: Revisions Scale: Date:Sheet Number This drawing is not intended nor shall it be used for construction purposes unless the signed professional seal of a registered landscape architect, civil engineer or land surveyor employed by The Berkshire Design Group, Inc. is affixed above. Do not scale drawing for quantity take-offs or construction. Use written dimensions only. If dimensions are incomplete, contact The Berkshire Design Group Inc. for clarification. © Copyright The Berkshire Design Group, Inc. This drawing and all of its contents are the express property of The Berkshire Design Group, Inc., and shall not be copied or used in any way without the written consent of The Berkshire Design Group, Inc.F:\NORTHAMPTON - BIKE PATH GABION WALL\02-DESIGN PROCESS\03-DRAWINGS\01-XREF\SITE PLAN.DWG PLOT DATE: 8/24/2022New Haven & Northampton Canal Greenway Retaining Wall Web: http://www.berkshiredesign.com Email: bdg@berkshiredesign.com (413) 582-7000 4 Allen Place, Northampton, Massachusetts 01060 FAX (413) 582-7005 Landscape Architecture Civil Engineering Planning Berkshire Group Design Land Surveying City of Northampton 210 Main St. Northampton, MA SEPTEMBER 21, 2022 LM/DS CC C-1111"=20' SITE PLAN SCALE 1"=20'-0" (if printed full size @ 24" x 36") 0 40'20'10'60' EROSION CONTROL BARRIER SEE DETAIL 02/C-501 EXISTING 24" BRICK SEWER SEALED AND FILLED WITH FLOWABLE FILL SEE LAYOUT SHEET C-112 SEDIMENT UPSLOPE OF RIPRAP BERM TO BE REMOVED AND DISPOSED EROSION CONTROL FABRIC TO BE INSTALLED AFTER SEDIMENT REMOVAL AND SEEDED WITH "NEW ENGLAND SEMI-SHADE GRASS AND FORBS MIX" BY NEW ENGLAND WETLAND PLANTS, INC. FIELD VERIFY LOCATION WITH ENGINEER PRIOR TO WORK REPAIR RIPRAP BERM WITH ADDITIONAL CRUSHED STONE AS REQUIRED TO RETURN TO ORIGINAL LINE AND GRADE. SEE LAYOUT NOTE 7. NEW H A V E N & N O R T H A M P T O N C A N A L G R E E N W A Y 1.ALL LINES OR POINTS ARE PERPENDICULAR OR PARALLEL TO LINES FROM WHICH THEY ARE MEASURED UNLESS OTHERWISE NOTED; WRITTEN DIMENSIONS SHALL PREVAIL. 2.THE CONTRACTOR SHALL VERIFY ALL LAYOUT, DIMENSIONS, GRADES, AND INVERTS PRIOR TO CONSTRUCTION; REPORT ANY DISCREPANCIES TO THE ENGINEER. ALL DISCREPANCIES SHALL BE RESOLVED IN WRITING PRIOR TO BEGINNING WORK. 3.ALL AREAS DISTURBED FROM CONSTRUCTION ACTIVITY TO BE RAKED, SMOOTHED, FERTILIZED AND SEEDED WITH "SEMI-SHADE GRASS AND FORBS MIX" BY NEW ENGLAND WETLAND PLANTS, INC., UNLESS OTHERWISE NOTED. 4.ALL NEW WALKS AND SURFACES TO MEET EXISTING WALKS AND SURFACES WITH SMOOTH, CONTINUOUS LINE AND GRADE. 5.THE CONTRACTOR SHALL NOT INSTALL CONCRETE DURING ADVERSE WEATHER CONDITIONS (RAIN, SLEET, ETC.) UNLESS OTHERWISE DIRECTED BY THE LANDSCAPE ARCHITECT. 6.ALL DIMENSIONS AND LAYOUT SHALL BE CONFIRMED IN THE FIELD. 7.EROSION CONTROL FABRIC SHALL BE MADE FROM BIODEGRADABLE MATERIALS AND BE DESIGNED TO HANDLE A MINIMUM OF 2:1 SLOPES. SEE SPECIFICATIONS FOR APPROVED PRODUCTS. 8.PRIOR TO START OF WORK, THE CONTRACTOR SHALL MARK OUT THE RETAINING WALL WORK IN THE FIELD FOR REVIEW AND APPROVAL BY THE STRUCTURAL ENGINEER. 1.THE CONTRACTOR SHALL BE RESPONSIBLE FOR A THOROUGH SITE EXAMINATION TO DETERMINE THE EXTENT OF DEMOLITION NECESSARY TO PREPARE THE SITE FOR CONSTRUCTION AND SHALL VERIFY ALL ITEMS TO BE DEMOLISHED OR SALVAGED WITH THE LANDSCAPE ARCHITECT PRIOR TO BEGINNING WORK. 2.CARE SHALL BE TAKEN NOT TO DAMAGE ANY ITEMS DESIGNATED TO REMAIN; REPAIR OR REPLACEMENT OF DAMAGED ITEMS DESIGNATED TO REMAIN SHALL BE AT THE CONTRACTORS' EXPENSE. 3.DISPOSAL OF PROPERTY DESIGNATED TO BE REMOVED SHALL BE AT THE DIRECTION OF THE LANDSCAPE ARCHITECT OR OWNER, AND SHALL CONFORM TO ALL APPLICABLE LAWS AND REGULATIONS. ALL SALVAGABLE MATERIAL SHALL BE DELIVERED BY THE CONTRACTOR TO STORAGE AREAS DESIGNATED BY THE LANDSCAPE ARCHITECT. CONTRACTOR SHALL REMOVE ALL EXISTING UNSUITABLE MATERIALS FROM THE SITE. 4.THE CONTRACTOR SHALL PROTECT EXISTING TREES TO REMAIN AS SHOWN ON THE PLANS AND DETAILS. 5.ALL TOPSOIL SHALL BE STRIPPED FROM THE SITE SHALL BE REMOVED AND STOCKPILED IN AN AREA DESIGNATED BY THE OWNER. THE CONTRACTOR IS RESPONSIBLE FOR ALL TOPSOIL AS NEEDED TO MEET THE SPECIFICATIONS. 6.THE CONTRACTOR MAY USE TEMPORARY FENCING TO CONTROL THE SITE DURING CONSTRUCTION. PRIOR TO THE FINALIZATION OF THE PROJECT, THE CONTRACTOR SHALL REMOVE ALL TEMPORARY FENCING AND BARRICADES. 7.THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN APPROXIMATE WAY ONLY BASED ON AVAILABLE DATA AND ALL UTILITIES MAY NOT BE SHOWN. PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL CONTACT DIG SAFE AT 811 TO REQUEST UTILITIES TO BE MARKED ON THE GROUND. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. THE CONTRACTOR AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY HIS/HER FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UTILITIES. 8.ALL PROPERTY BOUNDARY MONUMENTS SHALL BE PROTECTED AND/OR PRESERVED DURING DEMOLITION AND CONSTRUCTION. SHOULD ANY BOUNDARY MONUMENT BE DESTROYED AND/OR ALTERED AS A RESULT OF DEMOLITION AND CONSTRUCTION, IT SHALL BE THE RESPONSIBILITY OF THE PARTY INCURRING THE DAMAGE TO OBTAIN THE SERVICES OF A PROFESSIONAL LAND SURVEYOR TO REPLACE AND RESET SAID MONUMENT. 1.THE CONTRACTOR SHALL INSTALL EROSION CONTROL DEVICES AS NECESSARY TO PREVENT EROSION WITHIN THE SITE AND MIGRATION OF SEDIMENT OUT OF THE SITE, OR AS DIRECTED BY THE ENGINEER. ALL DEVICES SHALL COMPLY WITH THE MASSACHUSETTS EROSION AND SEDIMENT CONTROL GUIDELINES, CURRENT VERSION. 2.THE CONTRACTOR SHALL INSPECT ALL INSTALLED EROSION CONTROL DEVICES AT LEAST WEEKLY AND AFTER EACH STORM. IF ANY DEVICE IS FOUND TO BE DAMAGED, THE CONTRACTOR SHALL REPAIR IT IMMEDIATELY. IF SEDIMENT IS FOUND TO FILL MORE THAN HALF THE HEIGHT OF THE DEVICE, THE SEDIMENT SHALL BE REMOVED OR THE DEVICE REPLACED. 3.THE CONTRACTOR SHALL INSTALL EROSION CONTROL BARRIER ALONG ALL DOWN-SLOPE SITE LIMITS TO PREVENT THE MIGRATION OF SEDIMENT OFF-SITE. 4.ALL SEDIMENT STOCKPILES SHALL BE SURROUNDED BY A CONTINUOUS SILT FENCE. IF THE STOCKPILE WILL REMAIN UNUSED FOR MORE THAN 30 DAYS, THE STOCKPILE SHALL BE STABILIZED BY SEEDING. 5.ALL DEWATERING DISCHARGES SHALL BE DIRECTED TO A DEWATERING SEDIMENT TRAP. 6.THE CONTRACTOR SHALL MAINTAIN A STOCKPILE OF EXTRA EROSION CONTROL MATERIALS ON SITE AT ALL TIMES. 7.THE CONTRACTOR SHALL IMPLEMENT SPILL-PREVENTION PROCEDURES AND MAINTAIN A SPILL PREVENTION AND CLEANUP PLAN FOR THE SITE. ALL MATERIALS THAT ARE CAPABLE OF SPILLING, LEAKING, DISSOLVING OR OTHERWISE POLLUTING STORMWATER RUNOFF SHALL BE COVERED WHILE STORED AT THE SITE. 8.ALL MATERIALS THAT ARE CAPABLE OF SPILLING, LEAKING, DISSOLVING OR OTHERWISE POLLUTING STORMWATER RUNOFF SHALL BE COVERED WHILE STORED AT THE SITE. 9.ALL SEDIMENT REMOVED FROM THE SITE SHALL BE HANDLED IN ACCORDANCE WITH STATE AND LOCAL REGULATIONS. 10.ALL TEMPORARY EROSION CONTROLS SHALL BE REMOVED FROM THE SITE PRIOR TO THE COMPLETION OF THE WORK, EXCEPT WHERE DEGRADABLE MATERIALS ARE TO REMAIN IN-PLACE PERMANENTLY. LAYOUT NOTES EROSION CONTROL NOTES SITE PREPARATION/DEMOLITION NOTES APPROXIMATE LOCATION OF NEW RETAINING WALL EXACT LOCATION TO BE DETERMINED IN THE FIELD REFER TO STRUCTURAL ENGINEERING PLANS SEE LAYOUT NOTE 8 160155150145140135130125120115120125 130 135 140 145150155160165170175 SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSWEST STCLARK AVE SCHOOL ST FORT HILL TERRACENEW H A V E N & N O R T H A M P T O N C A N A L G R E E N W A Y Checked By: Drawn By: Revisions Scale: Date:Sheet Number This drawing is not intended nor shall it be used for construction purposes unless the signed professional seal of a registered landscape architect, civil engineer or land surveyor employed by The Berkshire Design Group, Inc. is affixed above. Do not scale drawing for quantity take-offs or construction. Use written dimensions only. If dimensions are incomplete, contact The Berkshire Design Group Inc. for clarification. © Copyright The Berkshire Design Group, Inc. This drawing and all of its contents are the express property of The Berkshire Design Group, Inc., and shall not be copied or used in any way without the written consent of The Berkshire Design Group, Inc.F:\NORTHAMPTON - BIKE PATH GABION WALL\02-DESIGN PROCESS\03-DRAWINGS\01-XREF\SITE PLAN.DWG PLOT DATE: 8/24/2022New Haven & Northampton Canal Greenway Retaining Wall Web: http://www.berkshiredesign.com Email: bdg@berkshiredesign.com (413) 582-7000 4 Allen Place, Northampton, Massachusetts 01060 FAX (413) 582-7005 Landscape Architecture Civil Engineering Planning Berkshire Group Design Land Surveying City of Northampton 210 Main St. Northampton, MA SEPTEMBER 21, 2022 LM CC C-1121"=40' SANITARY SEWER CONTROLLABLE DENSITY FILL INJECTION PLAN SCALE 1"=40'-0" (if printed full size @ 24" x 36") 0 80'40'20'120' APPROXIMATE LOCATION OF EXISTING RETAINING WALL CONSTRUCTION SITE ACCESS ALL EQUIPMENT AND MATERIALS TO BE STAGED AND STORED ON PATH AND DESIGNATED AREA IN VETERAN'S FIELD PARKING LOT DURING CONSTRUCTION EXISTING 36" RCP SANITARY LINE AND MANHOLES EXACT LOCATION TO BE CONFIRMED IN THE FIELD EXISTING 24" BRICK SEWER LINE FILL WITH CONTROLLABLE DENSITY FILL (CDF) ~20' ~20'~30' ~170' APPROXIMATE LOCATION OF EXISTING SEWER MANHOLE LOCATE AND ASSESS CONDITION PRIOR TO FILLING 24" BRICK SEWER WITH CDF APPROXIMATE LOCATION OF EXPLORATORY HOLE PLUG WEST END OF SEWER WITH BRICK AND MORTAR, PUMP CDF INTO EAST END OF SEWER. APPROXIMATE LOCATION OF EXPLORATORY HOLE PLUG EAST END OF SEWER WITH BRICK AND MORTAR, PUMP CDF INTO WEST END OF SEWER. 1.THE CONTRACTOR SHALL BE RESPONSIBLE FOR A THOROUGH SITE EXAMINATION TO DETERMINE THE EXTENT OF DEMOLITION NECESSARY TO PREPARE THE SITE FOR CONSTRUCTION AND SHALL VERIFY ALL ITEMS TO BE DEMOLISHED OR SALVAGED WITH THE LANDSCAPE ARCHITECT PRIOR TO BEGINNING WORK. 2.CARE SHALL BE TAKEN NOT TO DAMAGE ANY ITEMS DESIGNATED TO REMAIN; REPAIR OR REPLACEMENT OF DAMAGED ITEMS DESIGNATED TO REMAIN SHALL BE AT THE CONTRACTORS' EXPENSE. 3.DISPOSAL OF PROPERTY DESIGNATED TO BE REMOVED SHALL BE AT THE DIRECTION OF THE LANDSCAPE ARCHITECT OR OWNER, AND SHALL CONFORM TO ALL APPLICABLE LAWS AND REGULATIONS. ALL SALVAGABLE MATERIAL SHALL BE DELIVERED BY THE CONTRACTOR TO STORAGE AREAS DESIGNATED BY THE LANDSCAPE ARCHITECT. CONTRACTOR SHALL REMOVE ALL EXISTING UNSUITABLE MATERIALS FROM THE SITE. 4.THE CONTRACTOR SHALL PROTECT EXISTING TREES TO REMAIN AS SHOWN ON THE PLANS AND DETAILS. 5.ALL TOPSOIL SHALL BE STRIPPED FROM THE SITE SHALL BE REMOVED AND STOCKPILED IN AN AREA DESIGNATED BY THE OWNER. THE CONTRACTOR IS RESPONSIBLE FOR ALL TOPSOIL AS NEEDED TO MEET THE SPECIFICATIONS. 6.THE CONTRACTOR MAY USE TEMPORARY FENCING TO CONTROL THE SITE DURING CONSTRUCTION. PRIOR TO THE FINALIZATION OF THE PROJECT, THE CONTRACTOR SHALL REMOVE ALL TEMPORARY FENCING AND BARRICADES. 7.THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN APPROXIMATE WAY ONLY BASED ON AVAILABLE DATA AND ALL UTILITIES MAY NOT BE SHOWN. PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL CONTACT DIG SAFE AT 811 TO REQUEST UTILITIES TO BE MARKED ON THE GROUND. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. THE CONTRACTOR AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY HIS/HER FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UTILITIES. 8.ALL PROPERTY BOUNDARY MONUMENTS SHALL BE PROTECTED AND/OR PRESERVED DURING DEMOLITION AND CONSTRUCTION. SHOULD ANY BOUNDARY MONUMENT BE DESTROYED AND/OR ALTERED AS A RESULT OF DEMOLITION AND CONSTRUCTION, IT SHALL BE THE RESPONSIBILITY OF THE PARTY INCURRING THE DAMAGE TO OBTAIN THE SERVICES OF A PROFESSIONAL LAND SURVEYOR TO REPLACE AND RESET SAID MONUMENT. 1.THE CONTRACTOR SHALL INSTALL EROSION CONTROL DEVICES AS NECESSARY TO PREVENT EROSION WITHIN THE SITE AND MIGRATION OF SEDIMENT OUT OF THE SITE, OR AS DIRECTED BY THE ENGINEER. ALL DEVICES SHALL COMPLY WITH THE MASSACHUSETTS EROSION AND SEDIMENT CONTROL GUIDELINES, CURRENT VERSION. 2.THE CONTRACTOR SHALL INSPECT ALL INSTALLED EROSION CONTROL DEVICES AT LEAST WEEKLY AND AFTER EACH STORM. IF ANY DEVICE IS FOUND TO BE DAMAGED, THE CONTRACTOR SHALL REPAIR IT IMMEDIATELY. IF SEDIMENT IS FOUND TO FILL MORE THAN HALF THE HEIGHT OF THE DEVICE, THE SEDIMENT SHALL BE REMOVED OR THE DEVICE REPLACED. 3.THE CONTRACTOR SHALL INSTALL EROSION CONTROL BARRIER ALONG ALL DOWN-SLOPE SITE LIMITS TO PREVENT THE MIGRATION OF SEDIMENT OFF-SITE. 4.ALL SEDIMENT STOCKPILES SHALL BE SURROUNDED BY A CONTINUOUS SILT FENCE. IF THE STOCKPILE WILL REMAIN UNUSED FOR MORE THAN 30 DAYS, THE STOCKPILE SHALL BE STABILIZED BY SEEDING. 5.ALL DEWATERING DISCHARGES SHALL BE DIRECTED TO A DEWATERING SEDIMENT TRAP. 6.THE CONTRACTOR SHALL MAINTAIN A STOCKPILE OF EXTRA EROSION CONTROL MATERIALS ON SITE AT ALL TIMES. 7.THE CONTRACTOR SHALL IMPLEMENT SPILL-PREVENTION PROCEDURES AND MAINTAIN A SPILL PREVENTION AND CLEANUP PLAN FOR THE SITE. ALL MATERIALS THAT ARE CAPABLE OF SPILLING, LEAKING, DISSOLVING OR OTHERWISE POLLUTING STORMWATER RUNOFF SHALL BE COVERED WHILE STORED AT THE SITE. 8.ALL MATERIALS THAT ARE CAPABLE OF SPILLING, LEAKING, DISSOLVING OR OTHERWISE POLLUTING STORMWATER RUNOFF SHALL BE COVERED WHILE STORED AT THE SITE. 9.ALL SEDIMENT REMOVED FROM THE SITE SHALL BE HANDLED IN ACCORDANCE WITH STATE AND LOCAL REGULATIONS. 10.ALL TEMPORARY EROSION CONTROLS SHALL BE REMOVED FROM THE SITE PRIOR TO THE COMPLETION OF THE WORK, EXCEPT WHERE DEGRADABLE MATERIALS ARE TO REMAIN IN-PLACE PERMANENTLY. EROSION CONTROL NOTES SITE PREPARATION/DEMOLITION NOTES SSSSSSChecked By: Drawn By: Revisions Scale: Date:Sheet Number This drawing is not intended nor shall it be used for construction purposes unless the signed professional seal of a registered landscape architect, civil engineer or land surveyor employed by The Berkshire Design Group, Inc. is affixed above. Do not scale drawing for quantity take-offs or construction. Use written dimensions only. If dimensions are incomplete, contact The Berkshire Design Group Inc. for clarification. © Copyright The Berkshire Design Group, Inc. This drawing and all of its contents are the express property of The Berkshire Design Group, Inc., and shall not be copied or used in any way without the written consent of The Berkshire Design Group, Inc.F:\NORTHAMPTON - BIKE PATH GABION WALL\02-DESIGN PROCESS\03-DRAWINGS\01-XREF\SITE PLAN.DWG PLOT DATE: 8/24/2022New Haven & Northampton Canal Greenway Retaining Wall Web: http://www.berkshiredesign.com Email: bdg@berkshiredesign.com (413) 582-7000 4 Allen Place, Northampton, Massachusetts 01060 FAX (413) 582-7005 Landscape Architecture Civil Engineering Planning Berkshire Group Design Land Surveying City of Northampton 210 Main St. Northampton, MA SEPTEMBER 21, 2022 LM/DS CC C-501AS NOTED DETAILS MAIN STSTATE STMASONIC STMANHA N R AI L T R A I L CLARK AVE OLD S STOLD S STCRAFTS AVEGREEN S T WEST STE LM S T VETERAN'S FIELD NORTHAMPTON SKATEPARK SCHOOL ST FORT HILL TERRACESOUTH STNEW SOUTH STFR U I T S T C O N Z S TOLD S STMANHAN RA I L T R A I L CANAL G R E E N W A Y VETERAN'S FIELDPARKING AREAMANHAN RAIL TRAILRE-ROUTE12"± STAKE EVERY 10'± WATER FLOW AREA TO BE PROTECTED WORK AREA WORK AREA AREA TO BE PROTECTED STRAW WATTLE 9" TYP. 2"x2" WOODEN STAKE STRAW WATTLE PLAN VIEW SECTION SCALE: EROSION CONTROL BARRIER02NTS3/4"NOTES: 1.9" X 25' STRAW WATTLE ENCASED WITH BIODEGRADABLE BURLAP FIBER OR JUTE NETTING. 2.STRAW FILLING TO BE WEED-SEED FREE. 3.SECURED WITH 2"X2" WOODEN STAKES EVERY 10' SCALE: DETOUR & TRAIL CLOSURE DURING CONSTRUCTION01NTS INSTALL TEMPORARY CONSTRUCTION FENCING AT TRAIL JUNCTION FOR TRAIL CLOSURE DURING CONSTRUCTION INSTALL SIGNAGE FOR DETOUR DIRECTIONS DURING CONSTRUCTION MUTCD SIGNAGE REQUIRED BICYCLE PEDESTRIAN DETOUR SIGN M4-9a DETOUR SIGN M4-9R/M4-9L INSTALL SIGNAGE FOR DETOUR DIRECTIONS DURING CONSTRUCTION BETWEEN PARKING LOT AND CLARK AVE MUTCD SIGNAGE REQUIRED BICYCLE PEDESTRIAN DETOUR SIGN M4-9a DETOUR SIGN M4-9R/M4-9L INSTALL SIGNAGE FOR DETOUR DIRECTIONS DURING CONSTRUCTION BETWEEN OLD S ST AND CLARK AVE MUTCD SIGNAGE REQUIRED BICYCLE PEDESTRIAN DETOUR SIGN M4-9a DETOUR SIGN M4-9R/M4-9L INSTALL SIGNAGE FOR DETOUR DIRECTIONS DURING CONSTRUCTION BETWEEN OLD S ST AND CANAL GREENWAY MUTCD SIGNAGE REQUIRED BICYCLE PEDESTRIAN DETOUR SIGN M4-9a DETOUR SIGN M4-9R/M4-9LINSTALL TEMPORARY CONSTRUCTION FENCING AT UNDER PASS FOR TRAIL CLOSURE DURING CONSTRUCTION NOTES: 1. MUTCD SIGNAGE TO BE USED FOR RAIL TRAIL DETOUR SIGNAGE FOR PEDESTRIAN AND BICYCLE TRAFFIC DURING CONSTRUCTION. 2. BICYCLE PEDESTRIAN DETOUR SIGN M4-9a 3. DETOUR ARROW SIGN M4-9R OR M4-9L SCALE: MUTCD BICYCLE PEDESTRIAN DETOUR SIGN M4-9a03NTS SCALE: MUTCD DETOUR SIGN M4-9R & M4-9L04NTS 2. ALL BITUMINOUS CONCRETE SHALL BE MassDOT HMA. 1. NEW PAVING TO BE AS DETAILED IN THE PLANS. NOTES: TACK COAT SAWCUT AND REMOVE NEW 2-1/2" BINDER COURSE NEW 1-1/2" TOP COURSE 12" COMPACTED GRAVEL BASEMATCH EXISTING CROSS SLOPE SCARIFY EXIST. TOP COURSE PAVEMENT 12" EXIST. PAVEMENT EXIST. PAVEMENT BASE COURSE SCALE: ASPHALT PAVEMENT SAWCUT & PATCH05NTS MAX. HEIGHT EXSITING WALL: ± 16'1'-0"3'-0"APPROXIMATEEXISTING GRADE4'-6"3'-0"BACK FILL ENTIRE WALL w/PEA STONE TO THIS LEVELBEFORE ADDING MORE GABIONSBACKFILL w/ PEA STONETO TOP OF GABIONS6'x4.5'x3' GABIONS±2'-6"3'-0"6'x3'x3' GABIONS±1'-6"REMOVE TOP STONE AND EXCAVATEAS NECESSARY TO INSTALL TOP GABION ROW5'-0"6'x3'x3' GABIONS5'x3'x3' GABIONS6° (~4")203'-11 9/16" 34 GABIONS6 GABIONS MAX.(96) 6'x4.5'x3' GABIONS(66) 5'x3'x3' GABIONS(72) 6'x3'x3' GABIONS(3) 3'x3'x3' GABIONSREMOVE FENCE TO INSTALL GABION WALLEXISTING CONCRETE BASEEXISTING STONE WALLGRADE ATPATHWAYAPPROX. GRADEAT WALL BASEA BA B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B ACAREFULLY EXCAVATE, CONSTRUCT AND BACKFILLALTERNATE GABIONS IN LOWER ROW (MARKED "A")BEFORE EXCAVATING FOR "B" GABIONS.DWG. NO.DWG. NAMEPROJECTDESCRIPTIONFORDATEREV.DESIGNRTLDRAWNRTLSCALEAS SHOWNDATE03/20/14PROJECT #12121NORTHAMPTON, MASTRUCTURAL ENGINEERINGNGIENEIGRDWG 1 OF 1ALL DIMENSIONS AND CONDITIONS SHALL BE FIELDVERIFIED BY THE CONTRACTOR. ANY ERRORS ORDISCREPANCIES SHALL BE REPORTED TO THEENGINEER BEFORE COMMENCING WITH ANYWORK. ALL DOCUMENTS CREATED BYWHETSTONE ENGINEERING REMAIN THEPROPERTY OF WHETSTONE ENGINEERING ANDARE INTENDED FOR USE ONLY ON THE STATEDPROJECT.SCALE: 1/2" = 1'-0"SCALE: 1/16" = 1'-0"BATTER ANGLE, EMAIL06/07/22#1 Follow Massachusetts Historical Commission Survey Manual instructions for completing this form. 4/11 FORM F − STRUCTURE MASSACHUSETTS HISTORICAL COMMISSION MASSACHUSETTS ARCHIVES BUILDING 220 MORRISSEY BOULEVARD BOSTON, MASSACHUSETTS 02125 Photograph Insert here or on a Continuation Sheet a digital photograph (either color or black and white). A paper photographic print (3½x5¼" or 4x6" must also be attached to the form in this space or to a Continuation Sheet. Prints, from a photo-quality inkjet printer, must use brand name paper and inks approved by MHC. Attached photographs should be clearly identified with town name and property address. See MHC's Guidelines for Inventory Form Photographs. Locus Map Insert here or on a Continuation Sheet a map clearly showing the location of the property including the name of the nearest road or street and at least one other intersecting road or feature. Assessor's maps are preferred, but other forms of detailed plans such as an excerpt from a USGS topographic map or an aerial or satellite photo clearly marked are also acceptable. See MHC's Guidelines for Inventory Form Locational Information. Recorded by: Christopher Donta Organization: SWCA Date (month / year): March 2022 Assessor’s Number USGS Quad Area(s) Form Number Town/City: Northampton Place (neighborhood or village): Address or Location: West of New South Street Name: Northampton Railroad Retaining Wall Ownership: Public Private Type of Structure (check one): ___ boat or ship ___ canal ___ carousel ___ dam ___ fort ___ gate ___ kiln ___ lighthouse ___ pound ___ powderhouse ___ street ___ tower ___ tunnel _X_ wall ___ windmill ___other (specify) Date of Construction: 1850s Source: Karr 1995 Architect, Engineer or Designer: Materials: Stone blocks, mainly granite Alterations (with dates): Concrete filling and concrete support at the base of the wall (dates unknown) Condition: Deteriorating Moved: no yes Date: Acreage: Setting: Along an abandoned railroad bed, now rail trail, adjacent to the north side of the historic Mill River channel, now abandoned. Below a parking garage and north of a tree-lined residential neighborhood of houses and apartments. Easthampton31D-245 INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 1 Recommended for listing in the National Register of Historic Places. If checked, you must attach a completed National Register Criteria Statement form. Use as much space as necessary to complete the following entries, allowing text to flow onto additional continuation sheets. DESIGN ASSESSMENT Describe important design features and evaluate in terms of other structures within the community. A stone retaining wall supporting an earthen embankment on the north side of the former railroad bed (Figures 1 and 2) The wall was constructed ca. 1854 (see below) using large cut stone blocks, dry laid and fitted, at an angle sloping back to the north to contain the natural earthen rise on its north side. The retaining wall is 205 feet in length and reaches a maximum height of approximately 18 feet. The wall is constructed of a combination of large irregularly shaped stone blocks and smaller tabular pieces fitted into cracks and voids between the larger elements (Figure 3). Both the eastern and western ends of the wall are sloped downward to follow what was presumably the natural contours of the hill. The wall is partially covered in plant growth, mostly vines. As of 2022, substantial gaps are present throughout the wall. This includes one gap approximately 2 feet by 4 feet in size at the base of the wall. Presumably, pieces of the wall have fallen out of place either through outward soil pressure from the embankment; natural activity such as earth movement, water seepage, flooding, plant root action, and winds; or vibration from use of the adjacent railroad during its ca. 120 years of activity. Several attempts to consolidate the wall are evident. Concrete has been used in places to fill gaps in the wall and secure loose pieces of stone (Figure 4). In the western half of the wall, a number of poured concrete forms were set onto the base of the wall, covering the lower approximately four feet of the wall (Figure 5). A ca. 40 foot length of 8 foot tall chain link fence was installed along the north side of the rail trail as protection from falling stone from approximately 75-115 feet east of the western end of the wall. The wall is in deteriorating condition. Pieces of the wall have fallen out and concrete has been used to fill some gaps and support the base of the wall. The large areas of concrete at the base of the wall are partially covered in graffiti. A second retaining wall is located on the south side of the rail trail, on what would have been the north side of the Mill River. The river has been diverted away from this area, so only a dry river channel is now present. Presumably that retaining wall was also built in the 1850s to shore up the railroad bed, but that is only a supposition. HISTORICAL NARRATIVEExplain the history of the structure and how it relates to the development of the community. What is now the New Haven and Northampton Canal Greenway west of New South Street was originally constructed as the Hampshire and Hampden Railroad from 1852-1855, beginning operation in 1856 (Karr 1995). The rail line was part of a network that ran from New Haven, Connecticut to Northampton, and from there continuing north to Greenfield, with a spur running east across the Connecticut River. From the location of the retaining wall, the line ran to the southwest, north of South Street and south of West Street/Chapel Street/Rocky Hill Road towards Easthampton. To the east, the line ran under South Street and Pleasant Street, before curving sharply to the north and running between King Street and Market Street. The railroad was apparently cut into a natural rise on the north side of the Mill River and the retaining wall was created due to the steep angle of the cut in this section, in order to prevent erosion onto the tracks. Thus, the rail bed lies between this hillside on its north and the Mill River channel to its south (Figure 6). In 1941, the Mill River was diverted away from its natural path after a disastrous flood in 1936 and the hurricane of 1938, resulting in the abandonment of the river channel on the south side of the tracks. The Hampshire and Northampton Railroad was combined with other lines to form the New Haven and Northampton Railroad in 1862. That railroad line operated in various forms and under several different names until 1969, when it was abandoned north of Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 2 Easthampton (Karr 1995). The Easthampton portion of the railroad continued in use until 1992. Soon thereafter, the idea of converting the abandoned rail line to a paved trail began to take form. The abandoned tracks were removed in the Easthampton portion in 1999 and the Easthampton trail construction and paving was completed in 2004. The rail trail extension to Northampton was completed in 2010. Portions of this rail line followed the abandoned New Haven and Northampton Canal (1835), and thus was sometimes referred to as the Canal Railroad, but in this particular area, it did not. In this location, the canal line ran nearly perpendicular to the retaining wall just to its east, almost due north/south across the Mill River via an aqueduct paralleling New South Street to its west, approximately where Fort Hill Terrace is now (Walter 2006) (Figure 7). BIBLIOGRAPHY and/or REFERENCES Karr, Ronald Dale 1995 The Rail Lines of Southern New England: A Handbook of Railroad History. Branch Line Press, Pepperell, Massachusetts. Walling, Henry Francis 1860 Map of the County of Hampshire, Massachusetts. H.C & C.T. Smith & Co., New York. Walter, Carl E. 2006 Map of the Hampshire & Hampden Canal. Carl E. Walter, Northampton, Massachusetts. Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 3 Figure 1. Stone retaining wall, view east, with Mill River drainage channel to right. Figure 2. Stone retaining wall, view west, Mill River channel to left. Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 4 Figure 3. Typical wall construction with meter stick. Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 5 Figure 4. Detail showing concrete filling in gaps. Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 6 Figure 5. Concrete forms supporting the base of the wall, view to northeast Figure 6. Railroad line shown on a map of Northampton (Walling 1860). Northampton INVENTORY FORM F CONTINUATION SHEET TOWN ADDRESS MASSACHUSETTS HISTORICAL COMMISSION Area(s) Form No. 220 MORRISSEY BOULEVARD, BOSTON, MASSACHUSETTS 02125 Continuation sheet 7 Figure 7. Relationship of railroad and canal locations (Walter 2006). Canal route shown as gray line (inferred) and blue line (visible).. Northampton