2019-12-16 Rocky Hill Bike Trail Punch List Update
MEMORANDUM
4 Allen Place • Northampton, Massachusetts 01060 • t 413.582.7000 • f 413.582.7005 • bdg@berkshiredesign.com
To: Ben Sargent, E.T. & L. Corp.
From: Chris Chamberland, Berkshire Design Group
CC: Wayne Feiden, City of Northampton
Date: November 4, 2019/ Responses from ETL/Updated December 16, 2019
Project: Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Berkshire Design Group visited the site on Tuesday October 29, 2019 to observe the site work
complete to-date. The following represents a list of items that remain outstanding or that have
been built but require attention.
ETL responses in blue.
BDG visited the site on 11/19/2019.
In addition, a meeting was held at the City of Northampton on December 9 with Wayne Feiden,
BDG and ETL.
1. Trail Cross Sections
Sheet C-5.1 shows typical cross sections to be applied throughout the length of the
proposed trail. Proposed cross slope is 1.5% at all locations except 25’ long zones for
transition between segments of the trail that slope in opposite directions. We note that
there are many locations throughout the length of the trail where the as-built cross slope
is less than 1% including multiple locations with cross slope of 0.0% as measured with a
digital level. We observed these areas during a rainfall and noted areas of widespread
ponding along the centerline of the path. We have concerns over the safety of the path
during the cold weather months when the freeze-thaw cycle will create black ice
conditions on the path.
The attached plan sheets note the locations where insufficient cross slope and mid-path
ponding were observed. Note that these sheets are not exhaustive and additional areas
may be affected.
We recommend that the City reject the top course of paving and request a plan from the
Contractor for correcting the work.
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 2 of 7
ETL: Many of the areas that show little cross pitch have a running slope. We believe that
the loam shoulders are high throughout the project. We also believe that the leaves that
are covering the path are holding the water. We plan to blow the leaves off the path, and
rake out the loamed shoulders so that they are even with the top course of pavement. We
can then reassess.
On a site visit on 11/19/2019, it was noted that although the leaves had been cleared off
the trail and the shoulders were even with the pavement, there was still widespread
ponding between Overlook and Stone Ridge.
At the meeting on 12/9/19 it was decided that the drainage off the trail would be revisited
in March/April on site with representatives from BDG and ETL.
surface puddling between
Overlook and Stone Ridge
(11/19/19)
Deep puddle at station
20+00
(11/19/19)
2. Trail Running Slope
Sheet C-3.7 calls for the proposed switchback portion of the trail at Stoneridge Drive to
have a running slope of 8.0% along tangent segments. Slope checks on this segment of
the trail were made with a 48” digital level and found locations on each of the 3 tangent
segments where the running slope exceeds 8.5%. These locations are shown on the
attached sheets.
The design intent of this portion of the trail is to comply with the US Access Board’s
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 3 of 7
guidance for outdoor trails, which allows a maximum of 8.33% running slope. We
recommend that the City reject the portions of the trail that exceed 8.33%.
ETL: Further investigation is required at the switchback. This will be addressed once the
investigation is complete.
ETL has provided a detailed longitudinal profile of the trail ramp (attached) which shows
that segments of the trail exceed 8.33%. For the two upper ramp portions, the City is
potentially open to accepting the ramp as constructed with the out-of-spec segments;
however, there is a concern that work may need to be re-done in the future if the slopes
are ever challenged. We propose a credit for a reserve amount that would cover repaving
these areas to 8% if it was required in the future.
At the 12/9/2019 meeting, ETL proposed that we revisit all paving/puddling issues in
March or April (once the trail is clear of snow).
3. Switchback Landing Area
Sheet C-3.7 proposes that the running slope of the trail between STA 44+48.25 and STA
44+67.48 (on the “turn” of the switchback) flatten to 0.9% in order to create a
landing/resting/turning area between two segments of steeper slope. It appears that this
landing areas has been constructed between STA 44+67 and 44+87 (on the tangent
segment). It appears that this has resulted in the “turn” area having a running slope of
more than 2%, which violates the US Access Board’s trail guidance. The landing that has
been built also appears to have insufficient cross slope and was ponding water in the
center of the path.
ETL: Further investigation is required at the switchback. This will be addressed once the
investigation is complete. In a 11/21/19 email, ETL suggested a fix for the bottom of the
ramp where it intersects Stone Ridge. See attached email.
At the 12/9/2019 meeting, ETL proposed that we revisit all paving/puddling issues in
March or April (once the trail is clear of snow).
4. General items:
a. All marking tape must be removed from trees.
b. Sweep or remove pile of reflective material on trail south of Overlook
intersection.
c. Crushed stone at construction entrances and staging areas must be removed and
the area loamed and seeded to establish vegetation prior to final completion.
ETL: All marking tape will be removed from trees. We did not observe any reflective
material south of the overlook intersection, however if it is still present, it will be
removed. Crushed stone at the Burts Pit staging area will be removed, and the area will be
loamed and seeded.
Completion of these items will be verified in the Spring.
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 4 of 7
Survey tape remains on several trees and shrubs and should be removed off site.
5. Striping and lettering:
a. All pavement marking lettering must be installed.
b. In multiple locations, the centerline striping appears to be off-center by 4” or
more and do not align with the contractor’s painted guide markings. An example
location is shown in the following photo. We recommend that, in locations where
the line is more than 4” off-center, the line be obliterated and re-striped at the
centerline of pavement.
ETL: All missing pavement markings and lettering will be installed. The thermoplastic
striping that is off center can be ground off and reinstalled. However, we would not
recommend removing the existing striping, as the pavement will never be the same again.
If the lines are only slightly off center, we would recommend leaving them in place.
BDG: Striping completion will be verified in the spring. However, where the striping is off-
center and reduces the lane significantly (shown below – lane is less than 3.5’) we
recommend that the striping be removed by non-destructive means and new striping be
installed.
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 5 of 7
6. Curb replacement on public road.
a. The City Engineering Department requires the following items be addressed related
to the curbing that was cut and repaired for access and construction of the trail:
i. Dense-graded crushed stone should be placed to back up the curb on both
the bike path entrance and the construction entrance locations.
ETL: Dense graded stone will be placed to back up the curb at both entrances.
BDG: This will be verified in the Spring.
7. Drainage Lenses (Complete)
Sheets C-2.3 & C-2.4 show three locations where drainage lenses are proposed. As shown
on the typical sections on Sheet C-5.1 the drainage lens stone is to be exposed to allow
water to be carried beneath the road. It appears that the stone was constructed, but then
buried with loam. Excess loam must be removed to expose stone. Additional stone may be
necessary to meet the prosed roadside grade shown on the typical section.
ETL: The loam in the areas of the drainage lenses will be removed to expose the stone.
Additional crushed stone will be added as necessary to meet the proposed roadside grade.
General area of drainage lenses (October photo).
BDG: In November it was noted that the work on the drainage lenses had been
completed. See photo below
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 6 of 7
8. Seeding
a. Hydro-seeding appears to be completed, but grass is not fully grown in.
Vegetation must be established prior to final completion. Silt fence and other
erosion controls must be removed after the site is fully stabilized. We anticipate
this work would occur after the spring growing season has begun. Straw from
wattles may be scattered on-site.
b. Submit seed mix submittal. (Complete)
ETL: We understand that the grass is not fully grown in yet. We have confidence that in
the spring the grassed areas will be full established. Silt fence and straw wattles will be
removed once the grass is established. The seed mix will be submitted.
9. Drainage structures and rain gardens:
a. As per Note #5 on Sheets C-2.1 through C-2.6, the Contractor shall provide as-built
drawings with critical elevations of the drainage system certified by a Land Surveyor.
b. All drain pipes shall be cleaned of sediment after the site is stabilized with
vegetation.
c. Rain garden at Overlook appears to be deeper, relative to the overflow elevation,
than shown in the contract documents. We recommend that the Contractor verify
the dimensions and elevations of the rain garden and repair if necessary. Additional
fill shall meet the requirement of the rain garden details.
ETL: As-builts (in accordance with note #5 on sheet C2.1) of the drainage system will be
provided. Drain pipes will be cleaned of sediment as necessary. The rain garden elevations
will b e verified. If the rain garden is deeper than proposed, we can add additional fill is
required. However, is there a reason that you do not want the additional capacity?
BDG: Work on item C had begun in November and completion will be verified in the
Spring.
November 4, 2019/ Updated December 16, 2019
Rocky Hill Bike Trail at Burts Bog – Review of Work in Place
Page 7 of 7
10. As -builts:
a. As-built drawing of the final alignment with any field modifications noted shall be
submitted.
ETL: We will submit an as-built of the final alignment with any field modifications.
MEMORANDUM
4 Allen Place • Northampton, Massachusetts 01060 • t 413.582.7000 • f 413.582.7005 • bdg@berkshiredesign.com
To: Ben Sargent, E.T. & L. Corp.
From: Chris Chamberland, Berkshire Design Group
CC: Wayne Feiden, City of Northampton
Date: December 16, 2019
Project: Rocky Hill Bike Trail at Burts Bog – 2019-12-09 meeting minutes
Meeting attendance: Wayne Feiden, City of Northampton
Chris Chamberland, BDG
Lucy Conley, BDG
Ben Sargent, ETL
Arnold Dupre, ETL
Jim Farese, ETL
ETL summarized the work they had done which includes daylighting drainage lenses, work on the
Overlook rain garden, and other minor punch list items. In addition, ETL has completed a
longitudinal survey of the ramp at Stone Ridge Drive.
ETL (Jim) stated that the trail was a success, that it was already being used by a number of people
and that the majority of the puddles that were noted on the trail were only evident shortly after a
rain event and may not be an issue. He also noted that some of the puddling may be caused by
the striping.
BDG/Wayne noted that the puddles present both a potential safety issue and an issue with
pavement life since excessive water persisting on the pavement will cause asphalt ware. The issue
with the puddling is that the trail has no to little cross slope.
The conclusion was to meet at the trail in April (or sooner weather permitting) to review the
extent of the drainage issues and establish a final accounting of areas to be regraded/overlaid.
At this time ETL will not be requesting any additional payment. Chris Chamberland stated that a
key date for total completion is June 30, 2020. ETL replied that they wanted to complete all work
as soon as possible and once an agreement was reached on the paving/drainage, they would be
discussing with Warner Bros. with the goal of completing this project early in the season.
315315320320Burts Pit RoadLot 70.23 Acres ±10119.67 Sq. Feet ±Lot 90.23 Acres ±10119.67 Sq. Feet ±Lot 100.39 Acres ±17149.59 Sq. Feet ±Lot 80.39 Acres ±17149.59 Sq. Feet ±SCenter6"x6" Concrete BoundRemainsFlushWoodsWoodsDirtPileDirtPilePaintedWater LineTBM=Top SpindleOf HydrantEl: 314.83'OHWOHWOHWOHWOHWOHWOHWOHWOHWOHWTBM=Railroad SpikeSouth Side UP#72/72El: 315.77'SMHRim=313.51'(NEW) UP #71w/Transformer& Utility BoxesGuyWires(Old) UP #714" Gas LineAs MarkedBituminousDrivewayEdge Of PavementBituminous Curb20"20"20"20"20"20"20"20"22"22"22"28"3133143133
1
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/
/
////////STA 10+94.60
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END,
RIPRAP, AND LEVEL SPREADER
INV IN=311.90
INV OUT=311.50
SEE DETAIL 2/C-5.2
9+70 10+00 11+00 12+00
13+00 14+00
15+00
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
SILT FENCE
SEE DETAIL 9/C-5.2
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-1.1
C-2.1
APRIL 5, 2019
1" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 1 OF 6
0 402010 60
C-1.2
C-1.3
C-1.4
C-1.5
C-1.6
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO
CASE SHALL THE CROSS SLOPE OF THE BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP
BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING SLOPE) SHALL NOTE EXCEED
5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR
PRIOR TO BEGINNING WORK. NOTIFY THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW
STORMWATER MANAGER: PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY
INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM.
STORMWATER BASIN STORAGE VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT
ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED BY A PROFESSIONAL LAND
SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES
SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE
DIVERTED AWAY FROM THESE FEATURES UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM
COMPACTING THE AREAS OF RAIN GARDENS AND WATER QUALITY SWALES. EARTH BENEATH THESE
FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE
INSTALLED IN ACCORDANCE WITH MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE
ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE REQUIREMENTS OF MDOT
STANDARD SPECIFICATION M.503.10.
PUDDLE OVER 1/2 OF THE
BIKE PATH.
SLOPES MEASURED AT
0.1% CROSS, AND 0.3 %
LONGITUDINAL.
LOOKING TOWARD BURTS PIT ROAD - PUDDLE OVER 1/2 OF BIKE TRAIL
SLOPE ALONG TRAIL 0.3% - DESIGN SLOPE 1%
CROSS SLOPE 0.1% - DESIGN 1.5%
18"20"22"18"24"18"22"18"16"18"22"20"18"22"24"18"18"24"20"18"22"20"22"20"22"20"18"15"20"22"20"14"/14"20"/20"19"20"14"20"/16"22"20"/12"18"20"20"18"3163183193203163173173183193153
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323323322321
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MATCHLINE322320320320320318 315324//STA 15+92.70
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END,
RIPRAP, AND LEVEL SPREADER
INV IN=317.00
INV OUT=316.40
SEE DETAIL 2/C-5.2
15+00
16+00
17+00
18+00
19+00
20+
0
0
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-2.21" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 2 OF 6
0 402010 60
C-1.4
C-1.5
C-1.6
C-1.1
C-1.2
C-1.3
APRIL 5, 2019
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO
CASE SHALL THE CROSS SLOPE OF THE BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP
BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING SLOPE) SHALL NOTE EXCEED
5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR
PRIOR TO BEGINNING WORK. NOTIFY THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW
STORMWATER MANAGER: PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY
INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM.
STORMWATER BASIN STORAGE VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT
ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED BY A PROFESSIONAL LAND
SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES
SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE
DIVERTED AWAY FROM THESE FEATURES UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM
COMPACTING THE AREAS OF RAIN GARDENS AND WATER QUALITY SWALES. EARTH BENEATH THESE
FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE
INSTALLED IN ACCORDANCE WITH MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE
ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE REQUIREMENTS OF MDOT
STANDARD SPECIFICATION M.503.10.
PUDDLE OVER 1/2 OF THE
BIKE PATH.
CROSS SLOPE 0.7%
APPROXIMATE LOCATION
LOOKING TOWARD BURTS PIT ROAD - PUDDLE OVER ENTIRE BIKE TRAIL. 1/2 INCH DEEP
PUDDLE OVER BOTH
SIDES OF THE BIKE PATH
- 1/2 INCH DEEP. CROSS
SLOPES 0.1-0.5%.
DESIGN 1.5%
Overlook
Dr
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STA 100+32.30
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END,
RIPRAP, AND LEVEL SPREADER
INV IN=308.60
INV OUT=308.40
SEE DETAIL 2/C-5.2
STA 102+29.20
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END
AND RIPRAP APRON
INV IN=312.10
INV OUT=311.60
STA 23+77.35
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END
AND RIPRAP APRON
INV IN=311.90
INV OUT=311.60
SEE DETAIL 2/C-5.2
STA 25+08.50 CL
INSTALL 25' DRAINAGE LENS
WITH 6" PERF DRAIN (INV =308.3)
SEE TYP. SECTION ON C-5.1
STA 26+21.50 CL
INSTALL 25' DRAINAGE LENS WITH
6" PERF DRAIN (INV =305.3)
SEE TYP. SECTION ON C-5.1
5' WIDE OVERFLOW
ELEV=312.0
SEE DETAIL 4/C-5.2
400 SF RAIN GARDEN
BOTTOM ELEV=311.0
SEE DETAIL 1/C-5.2
21+0022+00
23+00
24+00
25
+
0
0
26
+
0
0
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-2.31" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 3 OF 6
0 402010 60
C-1.4
C-1.5
C-1.6
C-1.1
C-1.2
C-1.3
APRIL 5, 2019
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO
CASE SHALL THE CROSS SLOPE OF THE BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP
BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING SLOPE) SHALL NOTE EXCEED
5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR
PRIOR TO BEGINNING WORK. NOTIFY THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW
STORMWATER MANAGER: PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY
INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM.
STORMWATER BASIN STORAGE VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT
ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED BY A PROFESSIONAL LAND
SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES
SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE
DIVERTED AWAY FROM THESE FEATURES UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM
COMPACTING THE AREAS OF RAIN GARDENS AND WATER QUALITY SWALES. EARTH BENEATH THESE
FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE
INSTALLED IN ACCORDANCE WITH MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE
ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE REQUIREMENTS OF MDOT
STANDARD SPECIFICATION M.503.10.
2
0
"
/
2
0
"
3
0
"
1
8
"
1
8
"
1
4
"
1
4
"
2
0
"
1
8
"
/
1
4
"
S
i
n
g
l
e
T
r
u
n
k
3
0
"
2
0
"
1
6
"
1
8
"
2
4
"
1
4
"
1
6
"
1
4
"
1
8
"
1
8
"
1
4
"
2
0
"
1
4
"
1
2
'
/
1
0
"
S
i
n
g
l
e
T
r
u
n
k
2
0
"
1
4
"
1
7
"
2
0
"
1
6
"
/
1
2
"
S
i
n
g
l
e
T
r
u
n
k
1
2
"
1
8
"
/
1
6
"
S
i
n
g
l
e
T
r
u
n
k3043053
0
6
3
0
1302303 29729
8299300
293294295296289290291292287
2
8
8
288
289100'
We
t
land
Bu
f
fe
r
Dirt Pa
t
h
Dirt Path
1
2
"
/
1
2
"
H
a
l
f
D
e
a
d
Dirt Path
G
FW
/
I
0
4
G
FW
/
I
0
5
G
FW
/
I
0
3
G
FW
/
I
0
6
G
FW
/
S
B
0
1
D
E
C
5
2
0
1
8
G
FW
/
I
0
7
G
FW
/
I
0
8
G
FW
/
I
0
9
G
FW
/
I
1
0
G
FW
/
I
1
1
G
FW
/
I
0
1
G
FW
/
I
0
2
G
FW
/
V
0
1
G
FW
/
V
0
2
G
FW
/
V
0
7
G
FW
/
V
0
6
G
FW
/
V
0
5
G
FW
/
V
0
4
G
FW
/
V
0
3
G
FW
/
S
B
0
2
D
E
C
5
2
0
1
8
288289
2
9
0
2
9
1
2
9
2
2
9
3
294295296297298299300301302303304305306289MATCHLINEMATCHLINE300
30
5 295294291292291290285
295
29
0
28
9 288310 288287//
STA 27+73.50 CL
INSTALL 25' DRAINAGE LENS WITH
6" PERF DRAIN (INV =301.0)
SEE TYP. SECTION ON C-5.1
STA 28+66.50
INSTALL 12" HDPE CULVERT
AND FLARED END
INV IN=297.6
INV OUT=297.3
STA 31+59.50
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END,
RIPRAP, AND LEVEL SPREADER
INV IN=287.80
INV OUT=287.30
SEE DETAIL 2/C-5.2
STA 32+50.00
INSTALL 350 SF RAIN GARDEN
BOTTOM ELEV=286.75
5' WIDE OVERFLOW ELEV=287.75
27
+
0
0
28+00
29+00
30+00
31+00
32+00
BENCH ON CONCRETE PAD
SEE DETAIL 3/C-5.1
VEGETATED SWALE
SEE DETAIL 6/C-5.2
10'
LEVEL SPREADER
SEE DETAIL 2/C-5.2
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2STRAW WATTLE AT LIMIT OF WORK
WITHIN WETLAND BUFFER ZONE
SEE DETAIL 8/C-5.2
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-2.41" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 4 OF 6
0 402010 60
C-1.4
C-1.5
C-1.6
C-1.1
C-1.2
C-1.3
APRIL 5, 2019
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO CASE SHALL THE CROSS SLOPE OF THE
BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING
SLOPE) SHALL NOTE EXCEED 5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR PRIOR TO BEGINNING WORK. NOTIFY
THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW STORMWATER MANAGER:
PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM. STORMWATER BASIN STORAGE
VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED
BY A PROFESSIONAL LAND SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE DIVERTED AWAY FROM THESE FEATURES
UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM COMPACTING THE AREAS OF RAIN GARDENS
AND WATER QUALITY SWALES. EARTH BENEATH THESE FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE INSTALLED IN ACCORDANCE WITH
MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE
REQUIREMENTS OF MDOT STANDARD SPECIFICATION M.503.10.
16
"
/
1
2
"
S
i
n
g
l
e
T
r
u
n
k
12
"
30
"
20
"
14
"
16
"
20
"
16
"
20
"
/
1
2
"
18
"
20
"
22
"
22
"
/
2
0
"
S
i
n
g
l
e
T
r
u
n
k
18
"
18
"
18
"
18
"
18
"
20
"
26
"
/
2
4
"
S
i
n
g
l
e
T
r
u
n
k
22
"
/
2
0
"
18
"
18
"
16
"
18
"
18
"
20
"
18
"
287
2
8
8
288 2892902912922
9
3
294
2
9
62962
9
5
2
9
5 296291
292293
290285
286
287
288
289
290
29
1
2
9
2 293294
2
9
4
2
9
6
100' Wetland Buffer290291291292293294Dirt Pa
t
hDirt PathDirt PathDirt Path
Dirt Path
Di
r
t
P
a
t
h
Dirt Path
G
F
W
/
V
0
1
G
F
W
/
V
0
7
G
F
W
/
V
0
6
2962952
9
52952942932
9
2
291290288289 289MATCHLINEMATCHLINE290294294290289296
295
297
298
288293
294
//
/////////STA 31+59.50
INSTALL 12"
H
D
P
E
C
U
L
V
E
R
T
WITH HDPE FL
A
R
E
D
E
N
D
,
RIPRAP, AND
L
E
V
E
L
S
P
R
E
A
D
E
R
INV IN=287.8
0
INV OUT=287
.
3
0
SEE DETAIL 2/
C
-
5
.
2
STA 32+50.00
INSTALL 350
S
F
R
A
I
N
G
A
R
D
E
N
BOTTOM ELEV
=
2
8
6
.
7
5
5' WIDE OVER
F
L
O
W
E
L
E
V
=
2
8
7
.
7
5
STA 38+39.50
INSTALL 12" HDPE CULVERT
WITH HDPE FLARED END,
RIPRAP, AND LEVEL SPREADER
INV IN=293.6
INV OUT=293.4
SEE DETAIL 2/C-5.2
32+00 33+0034+0035+00
36+0037+0038+00
39+00
VEGETATED SWALE
SEE DETAIL 6/C-5.2
VEGETATED SWALE
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
STA 38+33.00
INSTALL 250 SF RAIN GARDEN
BERM ELEV=294.0
BOTTOM ELEV=293.0
CULVERT INV OUT=293.6
SEE DETAIL 1/C-5.2
SILT FENCE
SEE DETAIL 9/C-5.2
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-2.51" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 5 OF 6
0 402010 60
C-1.4
C-1.5
C-1.6
C-1.1
C-1.2
C-1.3
APRIL 5, 2019
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO
CASE SHALL THE CROSS SLOPE OF THE BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP
BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING SLOPE) SHALL NOTE EXCEED
5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR
PRIOR TO BEGINNING WORK. NOTIFY THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW
STORMWATER MANAGER: PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY
INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM.
STORMWATER BASIN STORAGE VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT
ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED BY A PROFESSIONAL LAND
SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES
SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE
DIVERTED AWAY FROM THESE FEATURES UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM
COMPACTING THE AREAS OF RAIN GARDENS AND WATER QUALITY SWALES. EARTH BENEATH THESE
FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE
INSTALLED IN ACCORDANCE WITH MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE
ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE REQUIREMENTS OF MDOT
STANDARD SPECIFICATION M.503.10.
PUDDLING IN MIDDLE OF
BIKE PATH - EXTENT
APPROXIMATE. CROSS
SLOPE 0%+/-
PUDDLING IN MIDDLE OF
BIKE PATH - EXTENT
APPROXIMATE. MAY
EXTEND AROUND BEND.
one Ridge Drive
Sandy Hill Road
S
T
18
"
18
"
16
"
18
"
18
"
20
"
20
"
18
"
14
"
24
"
18
"
18
"
18
"
22
"
20
"
20
"
16
"
14
"
22
"
16
"
18
"
18
"
18
"
20
"
14
"
18
"
22
"
12
"
20
"
30
"
20
"
24
"
18
"
26
"
10
"
/
6
"
/
8
"
/
8
"
L
o
c
u
s
t
22
"
16
"
10
"
14
"
14
"
12
"
14
"
14
"
14
"
19
"
O
a
k
20
"
12
"
14
"
14
"
26
"
"B
u
r
t
'
s
B
o
g
"
"C
h
i
l
d
r
e
n
"
"S
t
o
n
e
R
i
d
g
e
D
r
"
290
29
1
2
9
2 293294
293
294
295
296
284
285
2
8
6
287
288
28
9
29
0
29
1
29
2
29
3
294 294294294295 2952
9
6 2972
9
7
2
9
8299300
30
130130
2 299298297296280
281
282
283
284
285
286
287
288289290291292293294295
296
297
279
279
Dirt
P
a
t
h
Dirt Path
Bituminous Pave
ment
Bituminous CurbBituminous Curb
Bituminous
P
a
v
e
m
e
n
tPost & RailFenceDirt Pat
h
28
7
2
8
8
2
8
9
2
9
0
2
9
1
2
9
2293294295
296286285284283282281280279
290
2942962
9
6
296
289
297
MATCHLINE±50 LF SPLIT-RAIL WOOD FENCE
SEE DETAIL 1/C-5.3
280
294
294
295296
295296
////
//
WATER QUALITY STONE DIAPHRAGM
SEE DETAIL 3/C-5.2
STA 41+41.00
INSTALL 375 SF RAIN GARDEN
BERM ELEV= 295.0
OVERFLOW ELEV=294.5
BOTTOM ELEV=293.5
SEE DETAIL 1/C-5.2
VEGETATED SWALE
INCREASE SIDE SLOPES
TO 2H:1V
SEE DETAIL 6/C-5.2
5' WIDE OVERFLOW ELEV=294.5
1.5%1
.
5%1.5%39+00
40+00
41+00
42+
0
0
43+00
44+0045+00
46+0046+16VEGETATED SWALE
BENCH ON CONCRETE PAD
SEE DETAIL 3/C-5.1
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 7/C-5.2
STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
EROSION CONTROL BARRIER
(SILT FENCE WITH STRAW WATTLE)
SEE DETAIL 9/C-5.2STRAW WATTLE AT DOWN-SLOPE
LIMIT OF WORK IN ALL LOCATIONS (TYP.)
SEE DETAIL 8/C-5.2
STA 38+33.00
INSTALL 250 SF RAIN GARDEN
BERM ELEV=294.0
BOTTOM ELEV=293.0
CULVERT INV OUT=293.6
SEE DETAIL 1/C-5.2
INFITRATION CHAMBER
WITH OVERFLOW (TYP.)
SEE DETAIL 1/C-2.6
WATER QUALITY STONE DIAPHRAGM
WITH 4" PERFORATED PIPE (2/C-2.6).
CONNECT TO CHAMBER
WATER QUALITY STONE
DIAPHRAGM
WITH 4" PERF. PIPE (2/C-2.6).
CONNECT TO CHAMBER.
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-2.61" = 20'
DS
CC
GRADING &
DRAINAGE PLAN
SHEET 6 OF 6
0 402010 60
C-1.4
C-1.5
C-1.6
C-1.1
C-1.2
C-1.3
APRIL 5, 2019
GRADING & DRAINAGE NOTES
1.ALL ELEVATIONS REFER TO THE NORTH AMERICAN VERTICAL DATUM OF 1988.
2.TYPICAL BIKE PATH CROSS-SLOPE IS 1.5%. SEE SHEET C-5.1 FOR FULL TYPICAL SECTION DETAILS. IN NO
CASE SHALL THE CROSS SLOPE OF THE BIKE PATH EXCEED 2.0% IN ANY LOCATION. EXCEPT FOR THE RAMP
BETWEEN STA 43+00 AND 46+00, THE LONGITUDINAL SLOPE (RUNNING SLOPE) SHALL NOTE EXCEED
5.0%. ON HORIZONTAL CURVES, THE LONGITUDINAL SLOPE SHALL BE MEASURED ALONG THE EDGE OF
PAVEMENT WITH SMALLER RADIUS OF CURVATURE.
3.ALL DIMENSIONS, ELEVATIONS AND LAYOUT SHALL BE VERIFIED IN THE FIELD BY THE CONTRACTOR
PRIOR TO BEGINNING WORK. NOTIFY THE ENGINEER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.
4.THE CONTRACTOR SHALL ARRANGE FOR THE FOLLOWING INSPECTIONS BY THE NORTHAMPTON DPW
STORMWATER MANAGER: PRE-CONSTRUCTION INSPECTION, EROSION CONTROL INSPECTION, BURY
INSPECTION, AND FINAL INSPECTION.
5.THE CONTRACTOR SHALL SUBMIT AN AS-BUILT DRAWING OF THE STORMWATER MANAGEMENT SYSTEM.
STORMWATER BASIN STORAGE VOLUMES, INVERTS OF SPILLWAYS FROM BASINS, AND INVERT
ELEVATIONS FOR DRAINAGE PIPES AT INLET AND OUTLET SHALL BE CERTIFIED BY A PROFESSIONAL LAND
SURVEYOR. THE CONTRACTOR'S OWN MEASUREMENTS OF INVERT ELEVATIONS WILL NOT BE ACCEPTED.
6.AFTER THE SITE HAS BEEN FULLY STABILIZED, BUT BEFORE COMPLETION OF THE WORK, ALL DRAIN PIPES
SHALL BE CLEANED OF SEDIMENT.
7.AFTER CONSTRUCTION OF RAIN GARDENS AND WATER QUALITY SWALES, STORMWATER SHALL BE
DIVERTED AWAY FROM THESE FEATURES UNTIL VEGETATION HAS BEEN ESTABLISHED.
8.THROUGHOUT CONSTRUCTION, THE CONTRACTOR SHALL PREVENT HEAVY EQUIPMENT FROM
COMPACTING THE AREAS OF RAIN GARDENS AND WATER QUALITY SWALES. EARTH BENEATH THESE
FEATURES SHALL BE SCARIFIED IMMEDIATELY BEFORE THEY ARE CONSTRUCTED.
9.ALL CULVERTS SHALL BE CONSTRUCTED WITH A FLARED END AT THE PIPE OUTLET. CULVERTS SHALL BE
INSTALLED IN ACCORDANCE WITH MDOT STANDARD SPECIFICATION SECTION 230. CULVERTS AND PIPE
ENDS SHALL BE HIGH-DENSITY POLYETHYLENE (HDPE) AND MEET THE REQUIREMENTS OF MDOT
STANDARD SPECIFICATION M.503.10.
UNDISTURBED OR COMPACTEDSUBGRADE
STONE DIAPHRAGM FILLED WITH
BIKE PATH
24''
TOP OF STONE DIAPHRAGM TO BE
VEGETATED SLOPE-LOAM AND SEED PER PLANTING PLAN
2" BELOW TOP OF PAVEMENT
2-4" DIA. STONE AND 4" PERFORATED PIPE
24"
FILTER FABRIC
STONE DIAPHRAGM2NOT TO SCALE
INFILTRATION CHAMBER1NOT TO SCALE
NOTE:
CONTRACTOR MAY INSTALL OVERFLOW AS SHOWN OR ON TOP OF CHAMBER.
PUDDLES AT LANDINGS
PUDDLING IN MIDDLE OF
BIKE PATH - EXTENT
APPROXIMATE. CROSS
SLOPE 0%+/-
LANDING NOT LOCATED
PER PLAN. PUDDLE (NO
CROSS SLOPE)
ROCKY HILL BIKE TRAIL
275
280
285
290
295
300
305
275
280
285
290
295
300
305
-1.21%
-8
.
0
0
%
-0.92%
-7
.
9
3
%
-1.90%
-8
.
0
0
%
0.50%GRADE BREAK STA = 45+85.48ELEV = 278.88PVT: 43+59.24ELEV: 292.09PVC: 43+49.24ELEV: 292.55LP STA: 43+59.24
LP ELEV: 292.09
PVI STA:43+54.24
PVI ELEV:292.15
A.D.: 6.79%
K:1.47
LVC:10.00
PVT: 44+48.24ELEV: 286.95PVC: 44+38.24ELEV: 287.40LP STA: 44+48.24
LP ELEV: 286.95
PVI STA:44+43.24
PVI ELEV:287.00
A.D.: 7.08%
K:1.41
LVC:10.00
PVT: 45+72.01ELEV: 279.14PVC: 45+62.01ELEV: 279.63LP STA: 45+72.01
LP ELEV: 279.14
PVI STA:45+67.01
PVI ELEV:279.23
A.D.: 6.03%
K:1.66
LVC:10.00PVT: 43+09.05ELEV: 295.77PVC: 42+99.05ELEV: 296.14HP STA: 42+99.64
HP ELEV: 296.14
PVI STA:43+04.05
PVI ELEV:296.17
A.D.: -8.50%
K:1.18
LVC:10.00
PVT: 43+88.24ELEV: 291.40PVC: 43+78.24ELEV: 291.86HP STA: 43+78.24
HP ELEV: 291.86
PVI STA:43+83.24
PVI ELEV:291.80
A.D.: -6.79%
K:1.47
LVC:10.00
PVT: 44+77.47ELEV: 286.33PVC: 44+67.47ELEV: 286.78HP STA: 44+67.47
HP ELEV: 286.78
PVI STA:44+72.47
PVI ELEV:286.73
A.D.: -7.01%
K:1.43
LVC:10.00
42+50295.90295.90296.02296.0243+00296.14296.14294.49294.49292.49292.49291.90291.9044+00290.46290.46288.46288.46286.94286.94286.51286.5145+00284.55284.55282.56282.56280.58280.58279.08279.0846+00
PROPOSED GRADE
EXISTING GRADE
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.
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
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.
Land Surveying
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.
c
PROJECT NAME:
ROCKY HILL BIKE TRAIL
AT BURTS BOG
CITY OF NORTHAMPTON
OFFICE OF PLANNING & SUSTAINABILITY
210 MAIN STREET
NORTHAMPTON, MASSACHUSETTS
FOR CONSTRUCTION
4/18/2019 BID SET
6/21/2019 ISSUED FOR CONSTRUCTION
C-3.71" = 20'
CC
MD
PROFILE
SHEET 7 OF 8
0
0
HORIZONTAL SCALE
VERTICAL SCALE
6421
60102040
APRIL 5, 2019
275280285290295300305310-1.21%-8.00%-0.92%-7.93%-1.90%-8.00%GRADE BREAK STA = 45+85.48
ELEV = 278.88
PVT: 43+09.05ELEV: 295.77PVC: 42+99.05ELEV: 296.14 HP STA: 42+99.64HP ELEV: 296.14PVI STA:43+04.05PVI ELEV:296.17A.D.: -8.50%K:1.18LVC:10.00PVT: 43+88.24
ELEV: 291.40
PVC: 43+78.24
ELEV: 291.86 HP STA: 43+78.24HP ELEV: 291.86PVI STA:43+83.24PVI ELEV:291.80A.D.: -6.79%K:1.47LVC:10.00PVT: 44+77.47
ELEV: 286.33
PVC: 44+67.47
ELEV: 286.78 HP STA: 44+67.47HP ELEV: 286.78PVI STA:44+72.47PVI ELEV:286.73A.D.: -7.01%K:1.43LVC:10.00PVT: 43+59.24
ELEV: 292.09
PVC: 43+49.24
ELEV: 292.55 LP STA: 43+59.24LP ELEV: 292.09PVI STA:43+54.24PVI ELEV:292.15A.D.: 6.79%K:1.47LVC:10.00PVT: 44+48.24
ELEV: 286.95
PVC: 44+38.24
ELEV: 287.40 LP STA: 44+48.24LP ELEV: 286.95PVI STA:44+43.24PVI ELEV:287.00A.D.: 7.08%K:1.41LVC:10.00PVT: 45+72.01
ELEV: 279.14
PVC: 45+62.01
ELEV: 279.63 LP STA: 45+72.01LP ELEV: 279.14PVI STA:45+67.01PVI ELEV:279.23A.D.: 6.03%K:1.66LVC:10.007.84%8.75%1.75%0.85%6.49%8.52%7.69%8.01%5.83%3.06%0.73%6.54%8.19%8.31%8.34%8.44%8.60%7.86%7.51%4.60%1.98%4.93%296.19
292.43
290.39
286.99
284.54
280.42
296.42
296.75
288.44
286.37
282.44
279.11
296.14
292.49
290.46
286.94
284.55
280.58
294.49
291.90
288.46
286.51
282.56
279.08
46+0045+0044+0043+00PROPOSED FINISH GRADESURVEYED FINISH GRADESCALE Horizontal: 1"=20'Vertical: 1" = 2'EXISTING GRADE